Lifter / Lash Adjuster: Testing and Inspection

Special tools and equipment
^ Feeler gauge
^ Wood or plastic wedge

Notes:
^ Replace faulty lifter assembly (cannot be adjusted or repaired).
^ Irregular valve noise is normal when starting the engine.

- Start engine and run until engine coolant fan has switched on at least once.
- Increase engine speed to 2500 rpm for approx. 2 minutes.
If lifters are still noisy, locate faulty lifter(s) as follows:
- Remove valve cover.
- Rotate crankshaft clockwise, until cam of lifter to be checked is pointing upward.
- Measure play between cam and lifter.





- Press down on lifter with a wooden or plastic wedge. If a 0.2 mm feeler gauge can now be inserted between lifter and cam lobe then replace this lifter.

Note: Do NOT start the engine for approx. 30 minutes after new lifters have been installed. The hydraulic compensation elements must settle or the valves will strike the pistons.