RAM 2500 Truck 2WD L6-359 5.9L DSL Turbo VIN D FI (1997)
Connecting Rod: Service and Repair
Cleaning and Inspection
1. Inspect the rod journals for deep scratches, indication of overheating and other damage.
2. Inspect the pistons for damage and excessive wear. Check top of the piston, ring grooves, skirt and pin bore.
3. Measure the piston skirt diameter. If the piston is out of limits, replace the Piston.
4. The upper groove only needs to be inspected for damage.
5. Use a new piston ring to measure the clearance in the intermediate ring groove. If the clearance of the intermediate ring exceeds 0.152 mm (0.006
inch), replace the piston.
6. Use a new oil ring to measure the clearance in the oil groove. If the clearance exceeds 0.127 mm (0.005 inch), replace the piston.
7. Measure the pin bore. The maximum diameter is 40.025 mm (1.5758 inch). If the bore is over limits, replace the piston.
8. Inspect the piston pin for nicks, gouges and excessive wear.
