Connecting Rod: Testing and Inspection
CONNECTING ROD INSPECTIONCaution
- The piston, piston ring and connecting rod cannot be disassembled.
- When replacing the piston, piston pin, piston ring and connecting rod, replace them together as a single unit.
1. Install the connecting rod cap.
2. Measure the connecting rod large end side clearance.
- If it exceeds the specification, replace the piston, piston pin, piston ring and connecting rod as a single unit.
Standard clearance 0.14 - 0.36 mm {0.0056 - 0.0141 inch}
Maximum clearance 0.435 mm {0.0172 inch}
3. Remove the connecting rod cap.
4. Position plastigauge atop the journals in the axial direction.
5. Install the connecting rod bearing and connecting rod cap.
6. Remove the connecting rod cap.
7. Measure the connecting rod oil clearance.
- If it exceeds the specification, replace the connecting rod bearing or grind the crank pin and use oversize bearings so that the specified clearance is obtained.
Standard clearance 0.026 - 0.052 mm {0.0011 - 0.0020 inch}
Maximum clearance 0.10 mm {0.0039 inch}
BOLT INSPECTION
1. Measure the length of each bolt.
- If it exceeds the specification, replace the bolt.
Length L