Installation of a cylinder head is being discussed. Technician A says that some engines require sealer to be put on the head bolts during installation. Technician B says that the crankshaft should be located a few degrees before TDC to place all of the pistons below deck height. Who is correct?

Question

Quizplus · Accepted Answer

Both Technician A and Technician B are correct. Some engines require sealer to be put on the head bolts during installation to prevent oil or coolant leaks. And it is recommended to position the crankshaft a few degrees before TDC when installing a cylinder head to ensure that all pistons are below deck height, which helps prevent damage to the pistons and valves during installation.

Installation of a Cylinder Head Is Being Discussed