Operation Manual

Table Of Contents
Job Card No.:
Engine:
Filing No.:
Valve Guide Clearance
Checking / Reconditioning
0178-08-10 1799
© 0595
01.06.01 Page 1 of 2
S/BVM 628
Checking
When reconditioning valves (Job Card 01.07.01),
check the valve stem guide clearance.
Job:
Pull valve out of guide bush (1) / (2). Clean both.
Measure bore of guide bushes (1) and (2) within a
range of up to about 10 mm from the bottom end. If
the inside diameter in this zone exceeds 16,2 mm,
renew the guide bush.
Reconditioning
Replacing Guides
Since inlet and exhaust valve guides are of
different length, be sure not to interchange
them.
Length of valve guides:
Inlet - 136 mm,
Exhaust - 179 mm.
Drive out guide (1) / (2) with a brass arbor without
damaging the receiving bore. Smoothen squeezed
edges with a scraper. For installation of the valve
guides, see page 2.
For Inlet
For Exhaust
Job Cards:
- 01.05.01
- 01.07.01
Tools:
- Standard tools,
- Caliper gauge,
- Brass arbor
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