Fitting

1. Install an oil ring spacer in the bottom ring groove of the piston. The ends must butt one another and not overlap. The ends must be on a solid portion of the piston (not over an oil drain hole).





2. Start the end of an upper oil ring into the oil ring groove above the oil ring spacer. The end gap must be approximately 25.4 mm (1 inch) away from the oil ring spacer ends. Finish installing the oil ring by spiraling it the remainder of the way on. Repeat oil ring installation with the lower oil ring. Its gap must be approximately 25.4 mm (1 inch) on the other side of the oil ring spacer ends.
3. Select the No.2 piston ring and install it in a piston ring expander with the proper side up. See instructions on the piston ring package. Spread the piston ring and install it in the piston ring groove. Repeat step 3 with the top piston ring. Space the compression ring gaps approximately 50.8 mm (2 inches) on opposite sides of the oil ring gaps.





4. Oil the piston ring and piston pin bores. Store the piston and connecting rod assemblies in a clean place until ready for assembly.