Pic. 2.280. Valve lifter diameter measurement
Measure the diameter of the valve lifter with a micrometer (pic. 2.280).
The pusher diameter is 30.968–30.976 mm.
Calculate the oil clearance. Subtract the tappet diameter from the tappet bore in the head housing and determine the clearance. Oil clearance:
- standard - 0.024–0.050 mm;
- maximum - 0.07 mm.
If the gap exceeds the maximum allowable, replace the pusher. If necessary, replace the cylinder head.