Diesel and Turbo Diesel Piston Height

Assembling or replacing a diesel engine short block requires that the height of the pistons be measured in order to select the proper cylinder head gasket. Using a dial indicator, measure the amount that each piston protrudes above the top of the cylinder block at Top Dead Center, as shown in Fig. 6-6. Cylinder head gaskets are available in three thicknesses. Select the correct gasket from Table o based on the largest piston height measurement. The different gaskets are identified by the number of marks, either notches or holes, located near the part number stamped on the gasket face.

Fig. 6-6.

Piston height being measured on diesel engines.

Table o. Cylinder Head Gasket vs. Piston Height Specifications