37. Piston and Connecting Rod Assemble

Piston and Connecting Rod Assemble





1. Install the retainer. The retainer should be seated in the groove of the pin bore.





2. Assemble the piston and connecting rod. The boss (1) on the bottom side of the piston and the tab (2) on the side of the connecting rod should be facing the same direction.





3. Install the piston pin to the piston and connecting rod.
4. Install the retainers. The retainers should be seated in the groove of the pin bore.





5. Important: When installing piston rings, use a ring expander plier type tool. Do not roll the rings into the grooves of the piston. Use caution and care to expand the rings only slightly larger than the outside diameter (OD) of the piston.

Identify the compression and oil control rings for proper installation. The upper compression ring can be identified by a paint mark (3) located 180 degrees from the end gap. The lower compression ring can be identified by a paint mark (3) located 90 degrees from the end gap. Both rings should be installed with the orientation marks (1 and 2) facing the top of the piston.





6. Using piston ring pliers, install the piston rings onto the piston.
7. Position the oil control ring end gaps a minimum of 25 mm (1.0 inch) from each other.
8. Position the compression ring end gaps 180 degrees opposite each other.





9. Install the connecting rod bearings to the rod and cap.