{"id":8710,"date":"2019-07-10T23:35:59","date_gmt":"2019-07-10T21:35:59","guid":{"rendered":"https:\/\/autoedu.info\/auto-mechanic\/engine\/cylinder-head-repair\/provera-opruge-ventila\/"},"modified":"2022-11-16T23:10:14","modified_gmt":"2022-11-16T22:10:14","slug":"inspecting-valve-springs","status":"publish","type":"page","link":"https:\/\/autoedu.info\/en\/auto-mechanic\/engine\/cylinder-head-repair\/inspecting-valve-springs\/","title":{"rendered":"Inspecting valve springs"},"content":{"rendered":"<div id=\"tdi_1\" class=\"tdc-row\"><div class=\"vc_row tdi_2  wpb_row td-pb-row\" >\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_2,\r\n                .tdi_2 .tdc-columns{\r\n                    min-height: 0;\r\n                }.tdi_2,\r\n\t\t\t\t.tdi_2 .tdc-columns{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_2 .tdc-columns{\r\n\t\t\t\t    width: 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\"display:inline-block;width:320px;height:100px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});<\/script>\n<noscript id=\"td-ad-placeholder\"><\/noscript><\/div>\n\n <!-- end A --> \n\n[vc_column_text]\r\n<h1 style=\"text-align: center;\"><strong>Inspecting valve springs<\/strong><\/h1>\r\nInspecting valve springs have three measurements: spring height check, checking for squareness, and measuring the installed pressure. A deformed spring leads to wear of the valve stem and guide.\r\n\r\nThe valve spring must have the appropriate size and thrust, as this depends on the safe closing of the cylinder and the efficient operation of the engine. The springs must close the valves quickly and firmly. That is why it is important to check the condition of the valve spring during the overhaul of the cylinder head and determine that they meet the set specifications before they are reassembled.[\/vc_column_text][vc_single_image image=&#8221;8719&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221; tdc_css=&#8221;eyJhbGwiOnsibWFyZ2luLXRvcCI6IjAiLCJtYXJnaW4tYm90dG9tIjoiMCIsInBhZGRpbmctdG9wIjoiMCIsInBhZGRpbmctYm90dG9tIjoiMCIsImRpc3BsYXkiOiIifX0=&#8221; media_size_image_height=&#8221;200&#8243; media_size_image_width=&#8221;300&#8243; size=&#8221;contain&#8221; height=&#8221;40%&#8221;][vc_column_text css=&#8221;.vc_custom_1626697448213{margin-bottom: 0px !important;padding-top: 10px !important;padding-bottom: 0px !important;}&#8221;]\r\n<p style=\"text-align: center;\">Valve spring tester<\/p>\r\nBy measuring the height of the spring, it is checked whether the spring has the correct height and that there is no fatigue of the material. The height deviation from each other must not exceed 1 mm.\r\n\r\nChecking for squareness is a test of the general condition of the spring to compress and load the valve evenly during operation. The spring is placed on a perfectly flat surface and a try square is placed next to it. Rotate the spring around its axis to check for deformation. When there are irregularities, measure deviations. If the clearance is greater than 1.5 mm, replace the spring.\r\n\r\nThrust measurement is performed at the installed spring height. This determines how much pressure the spring creates when it is at its installed height on the cylinder head. This thrust is measured using a valve spring tester by compressing the spring to the installed height. The installed height for the tested spring is obtained from the information system or measured during disassembly. The tester measures the spring pressure when it is compressed. The deviation of the valve thrust force from the given value from the specification must not exceed 0.5 kg. When the value of the thrust force is not available, then compared with each other all the obtained values and assess their mutual deviation. The spring whose thrust is quite different from the average of all valves needs to be replaced.[\/vc_column_text]\n <!-- A generated by theme --> \n\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><div class=\"td-g-rec td-g-rec-id-sidebar tdi_6 td_block_template_1 \">\n\n<style>\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_6.td-a-rec{\r\n\t\t\t\t\ttext-align: center;\r\n\t\t\t\t}.tdi_6.td-a-rec:not(.td-a-rec-no-translate){\r\n\t\t\t\t    transform: translateZ(0);\r\n\t\t\t\t}.tdi_6 .td-element-style{\r\n\t\t\t\t\tz-index: -1;\r\n\t\t\t\t}.tdi_6.td-a-rec-img{\r\n\t\t\t\t    text-align: left;\r\n\t\t\t\t}.tdi_6.td-a-rec-img img{\r\n                    margin: 0 auto 0 0;\r\n                }.tdi_6 .td_spot_img_all img,\r\n\t\t\t\t.tdi_6 .td_spot_img_tl img,\r\n\t\t\t\t.tdi_6 .td_spot_img_tp img,\r\n\t\t\t\t.tdi_6 .td_spot_img_mob img{\r\n\t\t\t\t    border-style: none;\r\n\t\t\t\t}@media (max-width: 767px) {\r\n\t\t\t\t    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= document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 768  && td_screen_width < 1019 ) {\r\n\t\t\t    \r\n\t\t\t        \/* portrait tablets *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:200px;height:200px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width < 768 ) {\r\n\t\t\t    \r\n\t\t\t        \/* Phones *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});<\/script>\n<noscript id=\"td-ad-placeholder\"><\/noscript><\/div>\n\n <!-- end A --> \n\n[vc_column_text css=&#8221;.vc_custom_1626697475765{margin-bottom: 0px !important;padding-bottom: 0px !important;}&#8221;]To inspecting valve springs, follow these steps:[\/vc_column_text]<div class=\"wpb_wrapper td_block_separator td_block_wrap vc_separator vc_custom_1547273226249 tdi_8  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border-style: none;\r\n                }\n<\/style><\/div><div class=\"vc_row_inner vc_custom_1547186073072 tdi_10  vc_row vc_inner wpb_row td-pb-row\" >\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* tdc_composer_block - inline css att *\/\n.vc_custom_1547186073072{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;}\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_10{\r\n                    position: relative !important;\r\n                    top: 0;\r\n                    transform: none;\r\n                    -webkit-transform: none;\r\n                }.tdi_10,\r\n\t\t\t\t.tdi_10 .tdc-inner-columns{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_10 .tdc-inner-columns{\r\n\t\t\t\t    width: 100%;\r\n\t\t\t\t}\n<\/style><div class=\"vc_column_inner vc_custom_1546699675319 tdi_12  wpb_column vc_column_container tdc-inner-column td-pb-span4\">\n<style scoped>\n\/* custom css - 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tdc_css=&#8221;eyJhbGwiOnsibWFyZ2luLXRvcCI6IjAiLCJtYXJnaW4tYm90dG9tIjoiMCIsInBhZGRpbmctdG9wIjoiMCIsInBhZGRpbmctYm90dG9tIjoiMCIsImRpc3BsYXkiOiIifX0=&#8221; height=&#8221;100%&#8221; el_id=&#8221;koraci&#8221;]<\/div><\/div><\/div><div class=\"vc_column_inner vc_custom_1547277311732 tdi_14  wpb_column vc_column_container tdc-inner-column td-pb-span8\">\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* tdc_composer_block - inline css att *\/\n.vc_custom_1547277311732{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;padding-left: 0px !important;}\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_14{\r\n                    vertical-align: baseline;\r\n                }.tdi_14 .vc_column-inner > .wpb_wrapper,\r\n\t\t\t\t.tdi_14 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_14 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    width: 100%;\r\n\t\t\t\t}\n<\/style><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\" >[vc_column_text css=&#8221;.vc_custom_1626697519663{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;}&#8221;]<strong><u><img decoding=\"async\" class=\"alignnone wp-image-904\" src=\"https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-1-480-300x300.png\" sizes=\"(max-width: 40px) 100vw, 40px\" srcset=\"https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-1-480-300x300.png 300w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-1-480-150x150.png 150w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-1-480-356x364.png 356w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-1-480.png 480w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-1-480-420x420.png 420w\" alt=\"\" width=\"40\" height=\"40\" align=\"absmiddle\" \/>Height check\r\n<\/u><\/strong>\r\n\r\nUse a movable gauge (caliper) to measure the spring&#8217;s free height and compare the measured values with the specifications for that motor. If the spring height is outside the specific value, replace the spring. Repeat this procedure for all other springs. When you do not have the necessary data, then compare all the measured sizes and estimate the deviation of the spring height.[\/vc_column_text]<\/div><\/div><\/div><\/div><div class=\"wpb_wrapper td_block_separator td_block_wrap vc_separator vc_custom_1547273226249 tdi_16  td_separator_solid td_separator_center\"><span style=\"border-color:orange;border-width:1px;width:100%;\"><\/span>\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* tdc_composer_block - inline css att *\/\n.vc_custom_1547273226249{margin-top: 10px !important;margin-bottom: 10px !important;}\n<\/style><\/div><div class=\"vc_row_inner vc_custom_1547186073072 tdi_18  vc_row vc_inner wpb_row td-pb-row\" >\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* tdc_composer_block - inline css att *\/\n.vc_custom_1547186073072{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;}\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_18{\r\n                    position: relative !important;\r\n                    top: 0;\r\n                    transform: none;\r\n                    -webkit-transform: none;\r\n                }.tdi_18,\r\n\t\t\t\t.tdi_18 .tdc-inner-columns{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_18 .tdc-inner-columns{\r\n\t\t\t\t    width: 100%;\r\n\t\t\t\t}\n<\/style><div class=\"vc_column_inner vc_custom_1546699675319 tdi_20  wpb_column vc_column_container tdc-inner-column td-pb-span4\">\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* tdc_composer_block - inline css att *\/\n.vc_custom_1546699675319{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;}\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_20{\r\n                    vertical-align: baseline;\r\n                }.tdi_20 .vc_column-inner > .wpb_wrapper,\r\n\t\t\t\t.tdi_20 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_20 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    width: 100%;\r\n\t\t\t\t}\n<\/style><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\" >[vc_single_image image=&#8221;8713&#8243; img_size=&#8221;&#8221; alignment=&#8221;center&#8221; onclick=&#8221;img_link_large&#8221; media_size_image_height=&#8221;169&#8243; media_size_image_width=&#8221;300&#8243; size=&#8221;&#8221; width=&#8221;100%&#8221; tdc_css=&#8221;eyJhbGwiOnsibWFyZ2luLXRvcCI6IjAiLCJtYXJnaW4tYm90dG9tIjoiMCIsInBhZGRpbmctdG9wIjoiMCIsInBhZGRpbmctYm90dG9tIjoiMCIsImRpc3BsYXkiOiIifX0=&#8221; height=&#8221;100%&#8221; el_id=&#8221;koraci&#8221;]<\/div><\/div><\/div><div class=\"vc_column_inner vc_custom_1547277311732 tdi_22  wpb_column vc_column_container tdc-inner-column td-pb-span8\">\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* tdc_composer_block - inline css att *\/\n.vc_custom_1547277311732{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;padding-left: 0px !important;}\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_22{\r\n                    vertical-align: baseline;\r\n                }.tdi_22 .vc_column-inner > .wpb_wrapper,\r\n\t\t\t\t.tdi_22 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_22 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    width: 100%;\r\n\t\t\t\t}\n<\/style><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\" >[vc_column_text css=&#8221;.vc_custom_1626697558389{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;}&#8221;]<strong><u><img decoding=\"async\" class=\"alignnone wp-image-905\" src=\"https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-2-480-300x300.png\" sizes=\"(max-width: 40px) 100vw, 40px\" srcset=\"https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-2-480-300x300.png 300w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-2-480-150x150.png 150w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-2-480-356x364.png 356w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-2-480.png 480w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-2-480-420x420.png 420w\" alt=\"\" width=\"40\" height=\"40\" align=\"absmiddle\" \/>Checking for squareness\r\n<\/u><\/strong>\r\n\r\nPlace the spring on a flat surface. Rotate the spring and check with a try square for any deviations. Measure these deviations. If the deviations exceed the limit value (1.5 mm), replace the spring.[\/vc_column_text]<\/div><\/div><\/div><\/div><div class=\"wpb_wrapper td_block_separator td_block_wrap vc_separator vc_custom_1547273226249 tdi_24  td_separator_solid td_separator_center\"><span style=\"border-color:orange;border-width:1px;width:100%;\"><\/span>\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* tdc_composer_block - inline css att *\/\n.vc_custom_1547273226249{margin-top: 10px !important;margin-bottom: 10px !important;}\n<\/style><\/div><div class=\"vc_row_inner vc_custom_1547186073072 tdi_26  vc_row vc_inner wpb_row td-pb-row\" >\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* tdc_composer_block - inline css att *\/\n.vc_custom_1547186073072{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;}\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_26{\r\n                    position: relative !important;\r\n                    top: 0;\r\n                    transform: none;\r\n                    -webkit-transform: none;\r\n                }.tdi_26,\r\n\t\t\t\t.tdi_26 .tdc-inner-columns{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_26 .tdc-inner-columns{\r\n\t\t\t\t    width: 100%;\r\n\t\t\t\t}\n<\/style><div class=\"vc_column_inner vc_custom_1546699675319 tdi_28  wpb_column vc_column_container tdc-inner-column td-pb-span4\">\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* tdc_composer_block - inline css att *\/\n.vc_custom_1546699675319{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;}\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_28{\r\n                    vertical-align: baseline;\r\n                }.tdi_28 .vc_column-inner > .wpb_wrapper,\r\n\t\t\t\t.tdi_28 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_28 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    width: 100%;\r\n\t\t\t\t}\n<\/style><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\" >[vc_single_image image=&#8221;8722&#8243; img_size=&#8221;&#8221; alignment=&#8221;center&#8221; onclick=&#8221;img_link_large&#8221; media_size_image_height=&#8221;169&#8243; media_size_image_width=&#8221;300&#8243; size=&#8221;&#8221; width=&#8221;100%&#8221; tdc_css=&#8221;eyJhbGwiOnsibWFyZ2luLXRvcCI6IjAiLCJtYXJnaW4tYm90dG9tIjoiMCIsInBhZGRpbmctdG9wIjoiMCIsInBhZGRpbmctYm90dG9tIjoiMCIsImRpc3BsYXkiOiIifX0=&#8221; height=&#8221;100%&#8221; el_id=&#8221;koraci&#8221;]<\/div><\/div><\/div><div class=\"vc_column_inner vc_custom_1547277311732 tdi_30  wpb_column vc_column_container tdc-inner-column td-pb-span8\">\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* tdc_composer_block - inline css att *\/\n.vc_custom_1547277311732{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;padding-left: 0px !important;}\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_30{\r\n                    vertical-align: baseline;\r\n                }.tdi_30 .vc_column-inner > .wpb_wrapper,\r\n\t\t\t\t.tdi_30 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_30 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    width: 100%;\r\n\t\t\t\t}\n<\/style><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\" >[vc_column_text css=&#8221;.vc_custom_1626697596857{margin-top: 0px !important;margin-bottom: 0px !important;padding-top: 0px !important;padding-bottom: 0px !important;}&#8221;]<strong><u><img decoding=\"async\" class=\"alignnone wp-image-906\" src=\"https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-3-480-300x300.png\" sizes=\"(max-width: 40px) 100vw, 40px\" srcset=\"https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-3-480-300x300.png 300w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-3-480-150x150.png 150w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-3-480-356x364.png 356w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-3-480.png 480w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-3-480-420x420.png 420w\" alt=\"\" width=\"40\" height=\"40\" align=\"absmiddle\" \/>Measuring thrust\r\n<\/u><\/strong>\r\n\r\nRead or measure the installed spring height on the cylinder head. Install the valve spring to the valve spring tester. Pull the spring lever to compress the spring to the installed height. Note the thrust generated by the spring and compare it with the specifications. A spring that is out of specification needs to be replaced. When you do not have the required thrust force value, compare all the results obtained and estimate the average deviation.[\/vc_column_text]<\/div><\/div><\/div><\/div><div class=\"wpb_wrapper td_block_separator td_block_wrap vc_separator vc_custom_1547273226249 tdi_32  td_separator_solid td_separator_center\"><span style=\"border-color:orange;border-width:1px;width:100%;\"><\/span>\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* tdc_composer_block - inline css att *\/\n.vc_custom_1547273226249{margin-top: 10px !important;margin-bottom: 10px !important;}\n<\/style><\/div><\/div><\/div><div class=\"vc_column tdi_34  wpb_column vc_column_container tdc-column td-pb-span4\">\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_34{\r\n                    vertical-align: baseline;\r\n                }.tdi_34 > .wpb_wrapper,\r\n\t\t\t\t.tdi_34 > .wpb_wrapper > .tdc-elements{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_34 > .wpb_wrapper > .tdc-elements{\r\n\t\t\t\t    width: 100%;\r\n\t\t\t\t}.tdi_34 > .wpb_wrapper > .vc_row_inner{\r\n\t\t\t\t    width: auto;\r\n\t\t\t\t}.tdi_34 > .wpb_wrapper{\r\n\t\t\t\t    width: auto;\r\n\t\t\t\t    height: auto;\r\n\t\t\t\t}\n<\/style><div class=\"wpb_wrapper\" >\n <!-- A generated by theme --> \n\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><div class=\"td-g-rec td-g-rec-id-sidebar tdi_35 td_block_template_1 \">\n\n<style>\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_35.td-a-rec{\r\n\t\t\t\t\ttext-align: center;\r\n\t\t\t\t}.tdi_35.td-a-rec:not(.td-a-rec-no-translate){\r\n\t\t\t\t    transform: translateZ(0);\r\n\t\t\t\t}.tdi_35 .td-element-style{\r\n\t\t\t\t\tz-index: -1;\r\n\t\t\t\t}.tdi_35.td-a-rec-img{\r\n\t\t\t\t    text-align: left;\r\n\t\t\t\t}.tdi_35.td-a-rec-img img{\r\n                    margin: 0 auto 0 0;\r\n                }.tdi_35 .td_spot_img_all img,\r\n\t\t\t\t.tdi_35 .td_spot_img_tl img,\r\n\t\t\t\t.tdi_35 .td_spot_img_tp img,\r\n\t\t\t\t.tdi_35 .td_spot_img_mob img{\r\n\t\t\t\t    border-style: none;\r\n\t\t\t\t}@media (max-width: 767px) {\r\n\t\t\t\t    .tdi_35.td-a-rec-img {\r\n\t\t\t\t        text-align: center;\r\n\t\t\t\t    }\r\n                }\n<\/style><script type=\"text\/javascript\">\nvar td_screen_width = window.innerWidth;\nwindow.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 1140 ) {\r\n\t\t\t        \r\n\t\t\t        \/* large monitors *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 1019  && td_screen_width < 1140 ) {\r\n\t\t\t    \r\n\t\t\t        \/* landscape tablets *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 768  && td_screen_width < 1019 ) {\r\n\t\t\t    \r\n\t\t\t        \/* portrait tablets *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:200px;height:200px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width < 768 ) {\r\n\t\t\t    \r\n\t\t\t        \/* Phones *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});<\/script>\n<noscript id=\"td-ad-placeholder\"><\/noscript><\/div>\n\n <!-- end A --> \n\n[vc_column_text css=&#8221;.vc_custom_1626697992712{margin-bottom: 0px !important;padding-bottom: 0px !important;background-color: #000000 !important;}&#8221;]\r\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">See also<\/span><\/p>\r\n[\/vc_column_text][vc_single_image image=&#8221;13745&#8243; img_size=&#8221;&#8221; alignment=&#8221;center&#8221; onclick=&#8221;custom_link&#8221; tdc_css=&#8221;eyJhbGwiOnsibWFyZ2luLXRvcCI6IjAiLCJtYXJnaW4tYm90dG9tIjoiMCIsInBhZGRpbmctdG9wIjoiMCIsInBhZGRpbmctYm90dG9tIjoiMCIsImRpc3BsYXkiOiIifX0=&#8221; media_size_image_height=&#8221;200&#8243; media_size_image_width=&#8221;300&#8243; image_url=&#8221;https:\/\/autoedu.info\/&#8221; size=&#8221;contain&#8221; height=&#8221;40%&#8221; link=&#8221;https:\/\/autoedu.info\/en\/equipment-and-tools\/measuring-equipment\/vernier-caliper\/ &#8220;][vc_single_image image=&#8221;13625&#8243; img_size=&#8221;&#8221; alignment=&#8221;center&#8221; onclick=&#8221;custom_link&#8221; tdc_css=&#8221;eyJhbGwiOnsibWFyZ2luLXRvcCI6IjAiLCJtYXJnaW4tYm90dG9tIjoiMCIsInBhZGRpbmctdG9wIjoiMCIsInBhZGRpbmctYm90dG9tIjoiMCIsImRpc3BsYXkiOiIifX0=&#8221; media_size_image_height=&#8221;200&#8243; media_size_image_width=&#8221;300&#8243; image_url=&#8221;https:\/\/autoedu.info\/&#8221; size=&#8221;contain&#8221; height=&#8221;40%&#8221; link=&#8221;https:\/\/autoedu.info\/en\/auto-mechanic\/engine\/engine-mechanical-testing\/running-compression-test\/ &#8220;][vc_single_image image=&#8221;13463&#8243; img_size=&#8221;&#8221; alignment=&#8221;center&#8221; onclick=&#8221;custom_link&#8221; tdc_css=&#8221;eyJhbGwiOnsibWFyZ2luLXRvcCI6IjAiLCJtYXJnaW4tYm90dG9tIjoiMCIsInBhZGRpbmctdG9wIjoiMCIsInBhZGRpbmctYm90dG9tIjoiMCIsImRpc3BsYXkiOiIifX0=&#8221; media_size_image_height=&#8221;200&#8243; media_size_image_width=&#8221;300&#8243; image_url=&#8221;https:\/\/autoedu.info\/&#8221; size=&#8221;contain&#8221; height=&#8221;40%&#8221; link=&#8221;https:\/\/autoedu.info\/en\/autoelectronic\/gasoline-injection-systems\/air-intake\/idle-air-control-valve-test\/ &#8220;]\n <!-- A generated by theme --> \n\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><div class=\"td-g-rec td-g-rec-id-sidebar tdi_36 td_block_template_1 \">\n\n<style>\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_36.td-a-rec{\r\n\t\t\t\t\ttext-align: center;\r\n\t\t\t\t}.tdi_36.td-a-rec:not(.td-a-rec-no-translate){\r\n\t\t\t\t    transform: translateZ(0);\r\n\t\t\t\t}.tdi_36 .td-element-style{\r\n\t\t\t\t\tz-index: -1;\r\n\t\t\t\t}.tdi_36.td-a-rec-img{\r\n\t\t\t\t    text-align: left;\r\n\t\t\t\t}.tdi_36.td-a-rec-img img{\r\n                    margin: 0 auto 0 0;\r\n                }.tdi_36 .td_spot_img_all img,\r\n\t\t\t\t.tdi_36 .td_spot_img_tl img,\r\n\t\t\t\t.tdi_36 .td_spot_img_tp img,\r\n\t\t\t\t.tdi_36 .td_spot_img_mob img{\r\n\t\t\t\t    border-style: none;\r\n\t\t\t\t}@media (max-width: 767px) {\r\n\t\t\t\t    .tdi_36.td-a-rec-img {\r\n\t\t\t\t        text-align: center;\r\n\t\t\t\t    }\r\n                }\n<\/style><script type=\"text\/javascript\">\nvar td_screen_width = window.innerWidth;\nwindow.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 1140 ) {\r\n\t\t\t        \r\n\t\t\t        \/* large monitors *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 1019  && td_screen_width < 1140 ) {\r\n\t\t\t    \r\n\t\t\t        \/* landscape tablets *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 768  && td_screen_width < 1019 ) {\r\n\t\t\t    \r\n\t\t\t        \/* portrait tablets *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:200px;height:200px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width < 768 ) {\r\n\t\t\t    \r\n\t\t\t        \/* Phones *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});<\/script>\n<noscript id=\"td-ad-placeholder\"><\/noscript><\/div>\n\n <!-- end A --> \n\n[vc_column_text css=&#8221;.vc_custom_1626698001340{margin-bottom: 0px !important;padding-bottom: 0px !important;background-color: #000000 !important;}&#8221;]\r\n<p style=\"text-align: center;\"><span style=\"color: #ffffff;\">Video recommendation<\/span><\/p>\r\n[\/vc_column_text]\n <!-- A generated by theme --> \n\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><div class=\"td-g-rec td-g-rec-id-custom_ad_4 tdi_37 td_block_template_1 \">\n\n<style>\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_37.td-a-rec{\r\n\t\t\t\t\ttext-align: center;\r\n\t\t\t\t}.tdi_37.td-a-rec:not(.td-a-rec-no-translate){\r\n\t\t\t\t    transform: translateZ(0);\r\n\t\t\t\t}.tdi_37 .td-element-style{\r\n\t\t\t\t\tz-index: -1;\r\n\t\t\t\t}.tdi_37.td-a-rec-img{\r\n\t\t\t\t    text-align: left;\r\n\t\t\t\t}.tdi_37.td-a-rec-img img{\r\n                    margin: 0 auto 0 0;\r\n                }.tdi_37 .td_spot_img_all img,\r\n\t\t\t\t.tdi_37 .td_spot_img_tl img,\r\n\t\t\t\t.tdi_37 .td_spot_img_tp img,\r\n\t\t\t\t.tdi_37 .td_spot_img_mob img{\r\n\t\t\t\t    border-style: none;\r\n\t\t\t\t}@media (max-width: 767px) {\r\n\t\t\t\t    .tdi_37.td-a-rec-img {\r\n\t\t\t\t        text-align: center;\r\n\t\t\t\t    }\r\n                }\n<\/style><script type=\"text\/javascript\">\nvar td_screen_width = window.innerWidth;\nwindow.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 1140 ) {\r\n\t\t\t        \r\n\t\t\t        \/* large monitors *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 1019  && td_screen_width < 1140 ) {\r\n\t\t\t    \r\n\t\t\t        \/* landscape tablets *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 768  && td_screen_width < 1019 ) {\r\n\t\t\t    \r\n\t\t\t        \/* portrait tablets *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width < 768 ) {\r\n\t\t\t    \r\n\t\t\t        \/* Phones *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});<\/script>\n<noscript id=\"td-ad-placeholder\"><\/noscript><\/div>\n\n <!-- end A --> \n\n\n <!-- A generated by theme --> \n\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><div class=\"td-g-rec td-g-rec-id-custom_ad_5 vc_custom_1548147636293 tdi_38 td_block_template_1 \">\n\n<style>\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_38.td-a-rec{\r\n\t\t\t\t\ttext-align: center;\r\n\t\t\t\t}.tdi_38.td-a-rec:not(.td-a-rec-no-translate){\r\n\t\t\t\t    transform: translateZ(0);\r\n\t\t\t\t}.tdi_38 .td-element-style{\r\n\t\t\t\t\tz-index: -1;\r\n\t\t\t\t}.tdi_38.td-a-rec-img{\r\n\t\t\t\t    text-align: left;\r\n\t\t\t\t}.tdi_38.td-a-rec-img img{\r\n                    margin: 0 auto 0 0;\r\n                }.tdi_38 .td_spot_img_all img,\r\n\t\t\t\t.tdi_38 .td_spot_img_tl img,\r\n\t\t\t\t.tdi_38 .td_spot_img_tp img,\r\n\t\t\t\t.tdi_38 .td_spot_img_mob img{\r\n\t\t\t\t    border-style: none;\r\n\t\t\t\t}@media (max-width: 767px) {\r\n\t\t\t\t    .tdi_38.td-a-rec-img {\r\n\t\t\t\t        text-align: center;\r\n\t\t\t\t    }\r\n                }\n<\/style><script type=\"text\/javascript\">\nvar td_screen_width = window.innerWidth;\nwindow.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 1140 ) {\r\n\t\t\t        \r\n\t\t\t        \/* large monitors *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 1019  && td_screen_width < 1140 ) {\r\n\t\t\t    \r\n\t\t\t        \/* landscape tablets *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 768  && td_screen_width < 1019 ) {\r\n\t\t\t    \r\n\t\t\t        \/* portrait tablets *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width < 768 ) {\r\n\t\t\t    \r\n\t\t\t        \/* Phones *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:300px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});<\/script>\n<noscript id=\"td-ad-placeholder\"><\/noscript><\/div>\n\n <!-- end A --> \n\n<\/div><\/div><\/div><\/div><div id=\"tdi_39\" class=\"tdc-row\"><div class=\"vc_row tdi_40  wpb_row td-pb-row\" >\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_40,\r\n                .tdi_40 .tdc-columns{\r\n                    min-height: 0;\r\n                }.tdi_40,\r\n\t\t\t\t.tdi_40 .tdc-columns{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_40 .tdc-columns{\r\n\t\t\t\t    width: 100%;\r\n\t\t\t\t}.tdi_40:before,\r\n\t\t\t\t.tdi_40:after{\r\n\t\t\t\t    display: table;\r\n\t\t\t\t}\n<\/style><div class=\"vc_column tdi_42  wpb_column vc_column_container tdc-column td-pb-span12\">\n<style scoped>\n\/* custom css - generated by TagDiv Composer *\/\n\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_42{\r\n                    vertical-align: baseline;\r\n                }.tdi_42 > .wpb_wrapper,\r\n\t\t\t\t.tdi_42 > .wpb_wrapper > .tdc-elements{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_42 > .wpb_wrapper > .tdc-elements{\r\n\t\t\t\t    width: 100%;\r\n\t\t\t\t}.tdi_42 > .wpb_wrapper > .vc_row_inner{\r\n\t\t\t\t    width: auto;\r\n\t\t\t\t}.tdi_42 > .wpb_wrapper{\r\n\t\t\t\t    width: auto;\r\n\t\t\t\t    height: auto;\r\n\t\t\t\t}\n<\/style><div class=\"wpb_wrapper\" >\n <!-- A generated by theme --> \n\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><div class=\"td-g-rec td-g-rec-id-custom_ad_2 tdi_43 td_block_template_1 \">\n\n<style>\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_43.td-a-rec{\r\n\t\t\t\t\ttext-align: center;\r\n\t\t\t\t}.tdi_43.td-a-rec:not(.td-a-rec-no-translate){\r\n\t\t\t\t    transform: translateZ(0);\r\n\t\t\t\t}.tdi_43 .td-element-style{\r\n\t\t\t\t\tz-index: -1;\r\n\t\t\t\t}.tdi_43.td-a-rec-img{\r\n\t\t\t\t    text-align: left;\r\n\t\t\t\t}.tdi_43.td-a-rec-img img{\r\n                    margin: 0 auto 0 0;\r\n                }.tdi_43 .td_spot_img_all img,\r\n\t\t\t\t.tdi_43 .td_spot_img_tl img,\r\n\t\t\t\t.tdi_43 .td_spot_img_tp img,\r\n\t\t\t\t.tdi_43 .td_spot_img_mob img{\r\n\t\t\t\t    border-style: none;\r\n\t\t\t\t}@media (max-width: 767px) {\r\n\t\t\t\t    .tdi_43.td-a-rec-img {\r\n\t\t\t\t        text-align: center;\r\n\t\t\t\t    }\r\n                }\n<\/style><script type=\"text\/javascript\">\nvar td_screen_width = window.innerWidth;\nwindow.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 1140 ) {\r\n\t\t\t        \r\n\t\t\t        \/* large monitors *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            placeAdEl.replaceWith(adEl);\t\r\n\t\t            adEl.setAttribute(\"class\", \"adsbygoogle\");\r\n\t\t            adEl.setAttribute(\"style\", \"display:inline-block;width:970px;height:250px\");\t            \t\t                \r\n\t\t            adEl.setAttribute(\"data-ad-client\", \"ca-pub-8428072374152349\");\r\n\t\t            adEl.setAttribute(\"data-ad-slot\", \"9005325462\");\t            \r\n\t\t\t        (adsbygoogle = window.adsbygoogle || []).push({});\r\n\t\t\t    }\r\n\t\t\t});window.addEventListener(\"load\", function(){            \r\n\t            var placeAdEl = document.getElementById(\"td-ad-placeholder\");\r\n\t\t\t    if ( null !== placeAdEl && td_screen_width >= 1019  && td_screen_width < 1140 ) {\r\n\t\t\t    \r\n\t\t\t        \/* landscape tablets *\/\r\n\t\t\t        var adEl = document.createElement(\"ins\");\r\n\t\t            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A deformed spring leads to wear of the valve stem and guide. The valve spring must have the appropriate size and thrust, as this depends on the safe closing of the cylinder and the [...]","protected":false},"author":3,"featured_media":0,"parent":8555,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-8710","page","type-page","status-publish"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Inspecting valve springs - AutoEdu - Inspection procedure<\/title>\n<meta name=\"description\" content=\"Inspecting valve springs have three measurements: spring height check, checking for squareness, and measuring the installed pressure.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/autoedu.info\/en\/auto-mechanic\/engine\/cylinder-head-repair\/inspecting-valve-springs\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Inspecting valve springs - 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