{"id":8678,"date":"2019-07-06T20:46:24","date_gmt":"2019-07-06T18:46:24","guid":{"rendered":"https:\/\/autoedu.info\/auto-mechanic\/engine\/cylinder-head-repair\/pregled-stanja-ventila\/"},"modified":"2022-11-16T23:18:01","modified_gmt":"2022-11-16T22:18:01","slug":"valves-and-valve-seats-inspection","status":"publish","type":"page","link":"https:\/\/autoedu.info\/en\/auto-mechanic\/engine\/cylinder-head-repair\/valves-and-valve-seats-inspection\/","title":{"rendered":"Valves and valve seats inspection"},"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>Valves and valve seat inspection<\/strong><\/h1>\r\nInspection of the condition of valves and the valve seats is performed after disassembling the cylinder head and removing the valve. This is a mandatory procedure before assembling the cylinder head.\r\n\r\nValves and valve seats work in very poor conditions, and they should be carefully inspected each time the cylinder head is removed from the engine. Valves can burn or deform, leading to problems with lack of ignition. Also, the top of the valve can wear out due to a lack of lubrication, which leads to a knocking sound. The valve stem can wear out, which leads to the penetration of engine oil into the engine cylinder.[\/vc_column_text][vc_single_image image=&#8221;8684&#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_1626635373690{margin-bottom: 0px !important;padding-top: 10px !important;padding-bottom: 0px !important;}&#8221;]After removing the valve from the cylinder head, the valves and seats should be visually inspected for cracks, burn marks, signs of leakage, and damage to the valve face, stem, and tip.\u00a0 If any of the problems are detected, the valve must be replaced and the seat will be replaced or repaired depending on the degree of damage. If there are no obvious visual defects, then the valve and seat are measured and compared with specific values.\r\n\r\nThe diameter of the valve stem should be measured in the part that passes through the valve guide. The measurement is performed with a micrometer and the measurement results are compared with those given in the service specifications. Some valves come with a pointed valve stem, where the end of the stem is slightly narrower next to the valve head to allow the stem to expand on warmer engines. Valve margins are measured with a machinist\u2019s rule to ensure they are within specifications. It also measures the width of the valve seat and compares it to specifications.[\/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    .tdi_6.td-a-rec-img 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tdc_css=&#8221;eyJhbGwiOnsibWFyZ2luLXRvcCI6IjAiLCJtYXJnaW4tYm90dG9tIjoiMCIsInBhZGRpbmctdG9wIjoiMCIsInBhZGRpbmctYm90dG9tIjoiMCIsImRpc3BsYXkiOiIifX0=&#8221; height=&#8221;100%&#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_1626635499868{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\" \/>Visual inspection of the valve\r\n<\/u><\/strong>\r\n\r\nVisually inspect each valve for signs of burning, warping, and excessive wear on the face, stem, and tip. If found, replace the valves with new ones.[\/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;1760&#8243; 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;]<\/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_1626635533782{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\" \/>Visual inspection of the valve seat\r\n<\/u><\/strong>\r\n\r\nVisually inspect each valve seat for signs of burning, leaks, or excessive wear. If found, the seat must be machined or replaced.[\/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;1760&#8243; 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;]<\/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_1626635570252{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\" \/>Measure valve stem diameter\r\n<\/u><\/strong>\r\n\r\nUse a micrometer to measure the diameter of the tree of all valves in three places in the part that passes through the valve guide and calculate the average value. Compare the measured values with the specifications and determine the necessary actions.[\/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 class=\"vc_row_inner vc_custom_1547186073072 tdi_34  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_34{\r\n                    position: relative !important;\r\n                    top: 0;\r\n                    transform: none;\r\n                    -webkit-transform: none;\r\n                }.tdi_34,\r\n\t\t\t\t.tdi_34 .tdc-inner-columns{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_34 .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_36  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_36{\r\n                    vertical-align: baseline;\r\n                }.tdi_36 .vc_column-inner > .wpb_wrapper,\r\n\t\t\t\t.tdi_36 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_36 .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;1760&#8243; 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;]<\/div><\/div><\/div><div class=\"vc_column_inner vc_custom_1547277311732 tdi_38  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_38{\r\n                    vertical-align: baseline;\r\n                }.tdi_38 .vc_column-inner > .wpb_wrapper,\r\n\t\t\t\t.tdi_38 .vc_column-inner > .wpb_wrapper .tdc-elements{\r\n\t\t\t\t    display: block;\r\n\t\t\t\t}.tdi_38 .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_1626635605468{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-907\" src=\"https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-4-480-300x300.png\" sizes=\"(max-width: 40px) 100vw, 40px\" srcset=\"https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-4-480-300x300.png 300w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-4-480-150x150.png 150w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-4-480-356x364.png 356w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-4-480.png 480w, https:\/\/autoedu.info\/wp-content\/uploads\/2019\/01\/icons8-4-480-420x420.png 420w\" alt=\"\" width=\"40\" height=\"40\" align=\"absmiddle\" \/>Margin measurement\r\n<\/u><\/strong>\r\n\r\nMeasure the valve margin with a machinist\u2019s rule and record the readings. Measure the width of the valve seat with a machinist\u2019s rule and record the readings. Compare the measured values with the specifications and determine the necessary actions.[\/vc_column_text]<\/div><\/div><\/div><\/div><div class=\"wpb_wrapper td_block_separator td_block_wrap vc_separator vc_custom_1547273226249 tdi_40  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_42  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_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-sidebar 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: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_1626635785740{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;13736&#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\/micrometer\/ &#8220;][vc_single_image image=&#8221;13616&#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\/fluid-leakage\/ &#8220;][vc_single_image image=&#8221;13385&#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-electric\/alternator\/oscilloscope-alternator-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_44 td_block_template_1 \">\n\n<style>\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_44.td-a-rec{\r\n\t\t\t\t\ttext-align: center;\r\n\t\t\t\t}.tdi_44.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_44 .td-element-style{\r\n\t\t\t\t\tz-index: -1;\r\n\t\t\t\t}.tdi_44.td-a-rec-img{\r\n\t\t\t\t    text-align: left;\r\n\t\t\t\t}.tdi_44.td-a-rec-img img{\r\n                    margin: 0 auto 0 0;\r\n                }.tdi_44 .td_spot_img_all img,\r\n\t\t\t\t.tdi_44 .td_spot_img_tl img,\r\n\t\t\t\t.tdi_44 .td_spot_img_tp img,\r\n\t\t\t\t.tdi_44 .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_44.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_1626635811259{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_45 td_block_template_1 \">\n\n<style>\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_45.td-a-rec{\r\n\t\t\t\t\ttext-align: center;\r\n\t\t\t\t}.tdi_45.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_45 .td-element-style{\r\n\t\t\t\t\tz-index: -1;\r\n\t\t\t\t}.tdi_45.td-a-rec-img{\r\n\t\t\t\t    text-align: left;\r\n\t\t\t\t}.tdi_45.td-a-rec-img img{\r\n                    margin: 0 auto 0 0;\r\n                }.tdi_45 .td_spot_img_all img,\r\n\t\t\t\t.tdi_45 .td_spot_img_tl img,\r\n\t\t\t\t.tdi_45 .td_spot_img_tp img,\r\n\t\t\t\t.tdi_45 .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_45.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_46 td_block_template_1 \">\n\n<style>\n\/* custom css - generated by TagDiv Composer *\/\n.tdi_46.td-a-rec{\r\n\t\t\t\t\ttext-align: center;\r\n\t\t\t\t}.tdi_46.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_46 .td-element-style{\r\n\t\t\t\t\tz-index: -1;\r\n\t\t\t\t}.tdi_46.td-a-rec-img{\r\n\t\t\t\t    text-align: left;\r\n\t\t\t\t}.tdi_46.td-a-rec-img img{\r\n                    margin: 0 auto 0 0;\r\n                }.tdi_46 .td_spot_img_all img,\r\n\t\t\t\t.tdi_46 .td_spot_img_tl img,\r\n\t\t\t\t.tdi_46 .td_spot_img_tp img,\r\n\t\t\t\t.tdi_46 .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_46.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            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This is a mandatory procedure before assembling the cylinder head. Valves and valve seats work in very poor conditions, and they should be carefully inspected each time 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-8678","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>Valves and valve seats inspection - AutoEdu - procedure<\/title>\n<meta name=\"description\" content=\"Inspection of the condition of valves and the valve seats are performed after disassembling the cylinder head and removing the valve.\" \/>\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\/valves-and-valve-seats-inspection\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Valves and valve seats inspection - 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