Step | Action | Values | Yes | No |
|---|---|---|---|---|
1 | Does the engine knock when it is cold and continue for 2-3 minutes or does the knock increase with torque? | -- | Go to Step 2 | System OK |
2 | Inspect the flywheel. Is the flywheel contacting the splash shield? | -- | Go to Step 3 | Go to Step 4 |
3 | Reposition the splash shield. Is the repair complete? | -- | Go to Step 1 | -- |
4 | Inspect the balancer and the drive pulleys. Is either the balancer or the drive pulleys loose or broken? | -- | Go to Step 5 | Go to Step 6 |
5 | Tighten or replace the balancer or the drive pulleys. Is the repair complete? | -- | Go to Step 1 | -- |
6 | Inspect the piston-to-bore clearance. Is the clearance more than the specified value? | 0.03 mm (0.001 in) | Go to Step 7 | Go to Step 8 |
7 |
Important: Cold engine piston knock usually disappears when the cylinder is grounded out. Cold engine piston knock, which disappears in about 1.5 minutes, is considered acceptable. Is the repair complete? | -- | Go to Step 1 | -- |
8 | Inspect the connecting rod. Is the connecting rod bent? | -- | Go to Step 9 | System OK |
9 | Replace the connecting rod. Is the repair complete? | -- | Go to Step 1 | -- |
