Piston: Service and Repair

PISTON INSTALLATION PROCEDURE

NOTE: For piston removal procedure, refer to Cylinder Block Assembly. Service and Repair

Piston Orientation:

NOTE: Before installing the piston, apply a coat of engine oil to the ring grooves and cylinder bores.

IF THE CRANKSHAFT IS ALREADY INSTALLED:
- Remove the connecting rod caps and slip short sections of rubber hose over the threaded ends of the connecting rod bolts.
- Install the ring compressor, check that the bearing is securely in place, then position the piston in the cylinder and tap it in using the wooden handle of a hammer,
- Stop after the ring compressor pops free and check the connecting rod-to-crank journal alignment before putting piston into place,
- Install the rod caps with bearings, and torque the nuts to 47 Nm (4.7 kg-m, 34 lb ft).

IF THE CRANKSHAFT IS NOT INSTALLED:
- Remove the rod caps and bearings, install the ring compressor, then position the piston in the cylinder and tap it in using the wooden handle of a hammer.
- Position all pistons at top dead center.

Piston Installation:

NOTE: Maintain downward force on the ring compressor to prevent rings from expanding before entering the cylinder bore.