Lifter / Lash Adjuster: Testing and Inspection

CAUTION: After installing new lifter(s) the engine must not be started for approx. 30 minutes. Hydraulic build up must subside, otherwise the valves will strike the pistons.

NOTE:
- Replace faulty lifter (cannot be adjusted or repaired).
- Irregular valve noises during engine start are normal.

1. Start engine and run until the radiator fan has switched on once.
2. Increase engine speed to about 2500 rpm for 2 minutes.
3. If the hydraulic lifters are still noisy, locate faulty lifter(s) as follows:

- Remove cylinder head (valve) cover.
- Rotate crankshaft clockwise, until cam lobe of the lifter to be checked is pointing upwards.
- Measure clearance between cam lobe and lifter.

4. If clearance exceeds 0.1 mm, replace lifter.
5. If clearance is less than 0.1 mm or zero, proceed with checking as follows:





- Press lifter down with a wooden or plastic wedge.
- If free travel in excess of 1 mm is felt before lifter contacts valve, replace lifter.