A) Using a dial gauge, measure the tappet hole diameters.
- Rated - 21.417 - 21.443 mm
b) By subtracting the measured value of the diameter of the pusher from the resulting size of the diameter of the hole for the pusher, determine the gap.
- Nominal clearance - 0.013 - 0.056 mm
- Maximum clearance - 0.10 mm
If the gap is greater than the maximum allowable, replace the pushers.