33
Malfunction Possible causes Remedial action Chap.
Low engine power,
output and speed,
black exhaust
smoke.
Engine runs very
hot. Cylinder head
overheat, telltale
lamp (optional
extra) comes on.
Air cleaner blocked.
Incorrect valve clearances.
Malfunction at injector.
Too much oil in engine.
Inadequate cooling:
- Entire cooling air system
contaminated.
- Inadequate sealing at air guide
plates or capsule elements.
Remove dirt from air cleaner.
Adjust valve clearances.
See workshop manual.
Drain off engine oil down to
upper mark on dipstick.
Clean cooling air system.
Check that air guide plates and
enclosure elements are all pres-
ent and make a tight seal.
5.3.1.
5.4.2.
5.3.3.
5.3.2.
5.3.4.
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