Hydraulic Valve Lifter - New Inspection Procedure
83audi01Applies To AUDI 5000
1984
Group
15
Subject:
Hydraulic valve lifter
Part Identifier
Key Points
New procedure for checking hydraulic valve lifter
A 42
Number
83-01
October 14, 1983
Note This information supersedes instructions given in the "Introductory Service Information, The New Audi 5000", WSP 521 -116-00, page 3.
Hydraulic valve lifter, checking
Work sequence
Note Hydraulic valve lifters are not adjustable. Noisy lifters may be replaced after the following checks:
- run engine until radiator fan comes on at least once
- bring engine speed to approx. 2500 rpm for 2 minutes
^ if valve lifter is still noisy, replace
- remove valve cover
- turn crankshaft pulley bolt clockwise until cam lobes of cylinder to be checked point up
- push down with suitable wood stick against valve lifter as shown
^ if valve lifter can be pushed down, lifter must be replaced
CAUTION
Hydraulic valve lifters are stored upside down. After replacing lifters DO NOT start engine for approx. 30 minutes to allow lifters to bleed down.