Lifter / Lash Adjuster: Testing and Inspection

Hydraulic Adjusting Elements, Checking

• The hydraulic adjusting elements cannot be repaired.

• Irregular valve noises are normal while starting the engine.

Procedure

- Start the engine and let it run until the coolant fan switches on once.

- Increase engine speed for about 2 minutes to approximately 2500 RPM, perform road test if necessary.

• If irregular valve noises disappear but return during short drives, oil check valve must be replaced. Installed location of the oil check valve inside the oil filter bracket - 3 - => [ Oil Filter Bracket ] Service and Repair.

- If the hydraulic adjusting elements are still loud, determined which one is faulty as follows.

- Remove cylinder head cover. Refer to => [ Cylinder Head Cover ] Cylinder Head Cover.

- Turn the crankshaft by the toothed belt gear bolt until the cam lobes on that adjuster that must be checked are at the top.

- To determine the play between cam lobes and roller rocker lever, press lever down - arrow -.





- If a 0.20 mm feeler gauge can slide between the cam lobes and roller rocker lever, replace the hydraulic adjusting element. Refer to => [ Camshafts ] Service and Repair.

Final procedures

- Install cylinder head cover. Refer to => [ Cylinder Head Cover ] Cylinder Head Cover