Piston and Piston Pin Installation Procedure

Piston and Piston Pin Installation Procedure





1. Properly orient the piston (1) on the connecting rod (2) as follows:
^ The locating mark (4) cast into the underside of the piston should point towards the front of the engine.
^ The locating notch (3) on the connecting rod cap should be pointing towards the rear of the engine on odd-numbered cylinders and towards the front of the engine on even-numbered cylinders.
2. Lubricate the piston pin bores in the piston and connecting rod with GM prelude lubricant GM P/N 1052367 (Canadian P/N 992869) or equivalent.





3. Align the piston pin bore with the connecting rod pin bore.
4. Slide the piston pin (4) into the piston and the connecting rod (3).

Important: New piston pin retainers must be used. Never reuse the piston pin retainers.

5. Install NEW piston pin retainers (1) using the J 43654.
6. Ensure that the piston pin retainers are fully seated in their grooves.
7. Repeat these procedures for the remaining pistons.