Tools Required

SA9101E Piston Pin Retainer/Replacer

1. Check fit between piston and pin.

Try to move the piston back and forth on the piston pin. If any movement is felt, measure the piston pin to piston and connecting rod clearances.

Piston Pin to Piston

•	Standard: 0.002-0.011 mm (0.0001-0.0004 in)

•	Service Limit: 0.015 mm (0.0005 in) max.

Piston Pin to Connecting Rod

•	Standard: 0.005-0.021 mm (0.0002-0.0008 in)

•	Service Limit: 0.03 mm (0.00012 in) max.




2. Remove piston rings:

2.1.	Using a piston ring expander, remove the compression rings.

2.2.	Remove oil ring by hand.




3. Disconnect connecting rod from piston.
4. Using a small screwdriver, remove the snap rings from the piston.



5. Using a plastic-faced hammer and a SA9101E , support the piston and lightly tap out the piston pin.

Notice: Carefully remove any burrs in the piston bore, next to the snap ring groove, using an X-ACTO knife (or equivalent). This will prevent piston pin scoring during removal.

6. Remove connecting rod.




Important: The connecting rods and rod caps are identified with a unique serial number during machining.

7. Arrange the connecting rods in the correct order.




Important: The piston and pin are a matched set.

8. Arrange the pistons, pins, rings, and bearings in the correct order.