Operation Manual

Job Card No.:
Engine:
Filing No.:
Starting Valve
Servicing
0178-31-10 1869
© 1084
01.11.02 Page 1 of 2
S/BVM 628
Fig. 1
Fig. 2
Servicing
When servicing the cylinder head (Job Card
01.08.01) , the starting valve is also due for removal
and servicing.
Job:
Place cylinder head on a wooden support. Unscrew
hex. bolt (10) - Fig. 1 - with lockwasher (11), and
remove cover (8). Place cylinder head on the side,
remove circlip (12) and release locked nuts (7) and (6)
as follows: Place a socket on hex. nut (7) and slip
socket spanner over it to move hex. nut (6). Piston (3)
is loaded by spring (2). Remove washer (5). Dismant-
le valve. Clean components in gas oil and check for
wear. Oil components slightly.
Inspect valve seat and, if necessary, recondition with
milling tool (Fig. 2), then grind in. To grind in, apply an
even film of fine grinding-in paste to seat. Equip
starting valve (1) with piston (3) to act as guide when
grinding in. Turn valve cone with a screwdriver until
the entire periphery of the sealing surface presents a
shade of matt-grey.
Remove all residues.
Job Card:
- 01.04.01
Tools:
- Valve seat miller (Section 1.8.1),
- Socket spanner (Section1.8.),
- Standard tools,
- Grinding-in paste
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GEREKİRSE OKU