- Clean the connecting rods in solvent and dry with compressed air.
- Inspect the connecting rods for the following:
• | Signs of being twisted, bent, nicked, or cracked |
• | Scratches or abrasion on the rod bearing seating surface |
- If the connecting rod bores contain minor scratches or abrasions,
clean the bores in a circular direction with a light emery paper. DO NOT scrape
the rod or rod cap.
- Measure the piston pin to connecting rod bore using the following
procedure:
4.1. | Using an outside micrometer, take two measurements of the piston
pin in the area of the connecting rod contact. |
4.2. | Using an inside micrometer, measure the connecting rod piston
pin bore. |
4.3. | Subtract the piston pin diameter from the piston pin bore. |
4.4. | The clearance should not exceed 0.016 mm (0.0006 in). |
- If the clearance is excessive, replace the piston pin.