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Service Manual Mitsubishi L-Series diesel engines
Version 08/2004
CYLINDER HEAD
ENGLISH
ENGINE MAIN PARTS
9.5
Repair of valve seat
If a valve seat is found defective, reface or replace it.
Figure 39
Checking valve sinkage
Figure 40
Refacing valve seat (Both inlet and
exhaust valves)
Seat contact and wear
Valve sinkage
Width of valve contact:
1.3 to 1.8 mm
[0.0512 to 0.0709 in.]
Sinkage of valve
Standard
Service limit
0.5 mm [0.0197 in.]
1.5 mm [0.0591 in.]
Table 19
Sinkage of valve
CAUTION
a.
When checking valve sinkage, the valve guide
must be in the normal condition.
b.
Resurface the valve seat so that it contacts the
mid-portion of the valve face.
Summary of Contents for L2
Page 1: ...MITSUBISHI DIESEL ENGINE SERVICE MANUAL L2 L3 MODELS MITSUBISHI HEAVY INDUSTRIES LTD 08 2004 ...
Page 11: ...10 155 Service Manual Mitsubishi L Series diesel engines Version 08 2004 ENGLISH ...
Page 12: ...11 155 Service Manual Mitsubishi L Series diesel engines Version 08 2004 ENGLISH GENERAL ...
Page 86: ...85 155 Service Manual Mitsubishi L Series diesel engines Version 08 2004 ENGLISH FUEL SYSTEM ...
Page 114: ...113 155 Service Manual Mitsubishi L Series diesel engines Version 08 2004 ENGLISH AIR CLEANER ...