Rio L4-15L Cylinder Block Assembly Connecting Rod Specs
1. Insert connecting rod into piston and slide piston pin through piston and through connecting rod until it makes contact with the piston pin clip
already installed.
Notice: Verify that piston and rod are assembled in same direction as they were prior to disassembly.
2. Install second piston pin clip into clip grooves on opposite side of piston.
3. Hold piston up right and move connecting rod back and forth. Checks that rod moves freely
4. Install three piece oil ring onto piston.
a. Apply clean engine oil to the oil ring expander and upper and lower oil rings.
b. Install expander onto piston so that expander ends face upward.
c. Install low or oil ring onto piston. Ring may be installed with either face upward.
d. Install upper oil ring onto piston. Ring may be installed with either face upward.
5. Check that oil ring expander separates upper and lower oil rings, and that oil ring assembly spins freely on piston.
6. Use a ring expander and install second ring.