1. Attach the piston protrusion gauge (MP 1-107) on the cylinder block as shown in the figure below.
2. Piston protrusion must be done on each piston in two places.
When assembling new pistons and the engine, it is necessary to check the TDC protrusion of all pistons.
If different values are measured when measuring piston protrusion, the highest value applies to select the correct seal.
Depending on the piston protrusion, the appropriate cylinder head gaskets must be installed according to the table below.