Corrado L4-1781cc 1.8L SOHC SC (1991)
Lifter / Lash Adjuster: Testing and Inspection
Hydraulic valve lifters, checking
CAUTION: After replacing lifters, do not start engine for approximately 30 minutes, otherwise valves may hit piston. Lifter must be allowed to bleed
down to proper adjustment.
Always place removed valve lifter on a clean surface with the contact surface (camshaft side) facing downward.
Always replace complete valve lifter. Lifter cannot be adjusted or repaired.
Unusual noise from valve lifter while starting is normal.
- run engine until radiator fan comes on at least once
- bring engine speed to approximately 2500 RPM for two minutes
If valve lifter is still noisy, replace as follows:
- remove cylinder head cover
- turn crankshaft pulley bolt clockwise, until cam lobes of cylinder to be checked point upward
- push down against valve lifter with light pressure using a suitable wood stick (as shown). If valve lifter can be pushed down more than 0.1 mm (0.004
in.) replace lifter
