Mitsubishi S4Q2 User Manual

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Service Manual Mitsubishi SQ-Series diesel engines
Version 08/2004
ENGLISH
PISTONS, CONNECTING RODS,
CRANKSHAFT AND CRANKCASE ENGINE MAIN PARTS
10.2 Inspection
Figure 107 Inspection points
Check for fatigue
Check for wear.
Check for wear or
clogged hole.
Check for cracks or
clogged oil hole.
Check for serrated
portions for wear or
cracks.
Check for wear.
Check for wear, score
marks, cracks or
carbon deposits.
Check for
stripped
threads
Check for wear or damage.
Check for cracks, clogged oil
hole or other defects.
Check for nicks, chipping or
abnormal tooth contact.
Typical failures for which main bearings are to be checked are scratches
due to dirt embedded into bearing material, loss of overlay due to lack of oil,
craters or pockets due to fatigue failure, failure due to poor seating, radius
ride, etc.
Check for cracks.
Check for stripped
threads.
Check for scale
deposits, corrosion or
other defects.

Mitsubishi S4Q2 Specifications

General

Brand	Mitsubishi
Model	S4Q2
Category	Engine
Language	English