Removing cylinder heads

The cylinder head is removed only after a detailed examination and determination of a fault in the head itself, the associated elements, or the part that requires the cylinder head to be removed to access it (such as the engine block, and piston). Before removing the cylinder head, it is necessary to get acquainted with the procedure/steps listed in the information system for that vehicle because each engine is different. Some manufacturers require that the head screws be released according to a certain pattern and at a certain temperature. Failure to follow the manufacturer’s instructions may result in damage to the cylinder head. This section describes the procedures for overhauling, testing, and determining the fault on the cylinder head.

To remove the cylinder head, follow these steps:

Determining the procedure

Refer to the appropriate service information for the cylinder head removal procedure. Determine if the head screws must be removed in the correct order.

Remove screws

Follow the above procedure (if given) to remove all head screws. When it comes to the V-engine, put a mark on one head to know where it is going after the overhaul.

Separation from the engine block

When the seal is glued between the head and the engine block, replace the two screws with two to three turns. This will prevent the head from falling when detached from the engine block.

Removing the cylinder head

Remove the safety screws from the head. Carefully and safely remove the cylinder head from the block. Place the cylinder head in a pre-prepared place.