Diameter

Use a micrometer to inspect the piston pin diameter in the X and Y directions at points A,B,C, and D as shown.

The piston pin diameter should be within 18.974-18.980 mm (0.7470-0.7472 inch).

1. Install the threaded plug into the tube guide approximately half of its thread length.
2. Select an appropriate pin guide. Install the spring, body guide, and pin guide into the tube guide.
3. Insert the piston pin into the piston pin bore of the piston. Measure the amount that the piston pin protrudes on each side of the piston. Record that figure.
4. Remove the piston pin.
5. Position the connecting rod and piston on the pin guide and anvil.

NOTE: The pin guide will pass through the piston and connecting rod to ensure they stay aligned.

6. Select an insert that evenly divides the space between the piston and connecting rod.
7. Place the selected insert between the piston and connecting rod.
8. Lubricate the piston pin with the specified engine oil.
9. Insert the piston pin into the piston.





10. Place Piston Pin Remover/Replacer T81P-6135-A2 (part of T81P-6135-A) onto the piston pin and move the piston and pin into position under the arbor press ram. Push the piston pin through the connecting rod until it protrudes the distance recorded in step 3. Check that the piston is free on the piston pin while installing the pin.





11. When the piston pin-to-piston dimension is correct, keep a slight pressure on the press tam. Thread the threaded plug into the tube guide until it contacts the body guide.
12. Remove ram pressure and check the piston pin-to-piston dimension. Read just if necessary and reset the threaded plug. The threaded plug is now set to gauge the remainder of the connecting rod and piston assemblies.