Installation Instructions
1
ENGINE
81700·82100·82400 WSM,11770
Symptom
Probable
Cause
Solution
Reference
Page
Either Black
or
Dark
til
Overload
Lessen
the
load
-
Gray Exhaust
Gas
Is
til
Low grade fuel
used
Use
the
specified
-
Observed
fuel
..
Fuel
filter
clogged
Clean
or
replace G-18, G-22
..
Air
cleaner clogged
Clean
or
replace G-18
Deficient
Output
..
Incorrect injection
timing
Adjust 1-547
..
Engine's moving parts
seem
to
be seizing Repair
or
replace
-
..
Uneven fuel injection Repair
or
replace 1-524, 1-549
injection
pump
.. Deficient nozzle injection
Repair
or
replace 1-520, 1-550
nozzle
.. Compression leak Check comp-ression 1-517
pressure
Excessive Lubricant
.. Piston ring's gap facing
the
same direction
5hift
ring gap 1-528
Oil Consumption
direction
..
Oil ring
worn
or
stuck Replace 1-528, 1-538
•
Piston ring groove
worn
Replace piston 1-538
..
Valve stem and guide
worn
Replace 1-522, 1-532
Fuel
Mixed
into
.. Injection pump's plunger
worn
Replace
pump
1-524, 1-549
Lubricant Oil
element
or
pump
..
Fuel
lift
pump
broken Replace 1-523
Water
Mixed
into
..
Head gasket defective Replace
1-521
Lubricant Oil
..
Cylinder block
or
cylinder head
flawed
Replace
or
repair 1-521, 1-530
1-543
Low
Oil Pressure
•
Engine oil
insufficient
Replenish
1-511
til
Oil strainer clogged Clean 1-526
..
Oil
filter
cartridge clogged Replace G-12
til
Relief valve stuck
with
dirt
Clean 1-M8
til
Relief valve spring weaken
or
broken Replace
l-M8
..
Excessive
oil clearance
of
crankshaft bearing Replace 1-540
..
Excessive
oil clearance
of
crank pin bearing Replace 1-540
..
Oil passage clogged Clean
-
..
Different
type
of
oil
Use
the
specified
type
of
oil
.. Oil
pump
defective Repair
or
replace 1-523,1-544
High Oil Pressure
..
Different
type
of
oil
Use
the
specified
type
of
oil
• Relief valve defective
Replace 1-M8
1-52