Symptoms
and
possible causes
Glow plugs
Governor
Not
enough
output
power
a) Glow plugs are
burnt
out
b) Glow plugs
do
not
become red
hot
a) Governor
control
lever
is
set
to
a wrong position
b) Governor spring
is
off
Symptoms
and
possible causes
Poor compression
Maladjusted fuel injec-
a)
Improper
fuel injection timing
tion system
b) Injected fuel
quantity
is
not
enough
c) Fuel injection pressure
is
too
low
Fuel
is
not
reaching
a)
Air
is
trapped in fuel circuit
injection
pump
b) Fuel filter
is
clogged
c) Fuel
tank
is
not
clean
Insufficien t in take air Clogged air cleaner
Overheating
a) Cooling water shortage
b) Loose fan V-belt
c)
Radiator
is
clogged
or
leaking
d) Fuel injection
is
mis-timed
e) Engine oil shortage
Engine oil
consumption
rate
is
high
Symptoms
and
possible causes
Oil leakage
a) Defective oil seals
b) Blown gear case gasket
c) Loose gear case
mounting
bolts
d) Loose drain plug
e) Loose oil pipe connectors
ENGINE
Remedy
a) Replace glow plugs.
b) Check and correct lead wire
connections.
a) Reset
it
to
the
start
position.
b) Correct.
Remedy
Refer
to
a),
poor
compression
"Starting
difficulties," above.
a) Adjust fuel injection timing.
b) Overhaul
or
replace injection
pump.
c) Check injection nozzles and
adjust pressure.
a) Check connectors and retighten.
b) Clean filter
or
replace elemen
t.
c) Clean fuel tank.
Clean air cleaner and replace
element.
a) Add cooling water.
b) Adjust
or
replace V-bel
t.
c) Clean
or
replace radiator.
d) Adjust fuel injection timing.
e) Add engine oil.
Remedy
a) Replace oil seals.
b) Replace gasket.
c) Retighten.
d) Retighten.
e) Retighten.
f)
Blown rocker cover gasket
f)
Replace gasket.
g)
Loose rocker cover mounting bolts g) Retighten.
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