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CRANKSHAFT/AUTOMATIC TRANSMISSION
Vehicle does not move
1.
Oil
level
inspection
Check
the
oil
level (page
3-12),
Is the
oj(
level correct?
NO
- Fi1l the
crankcase with
r
ecommended oil (page 3·12)
YES
-
GO
TO
STEP 2.
2.
Oil pressure test
Check
the
engine oil
pressure
(page
4-6).
Is
the oil pressure
correct?
NO
- Faulty
lubrication system (page 4-5)
YES
- GO
TO
STEP
3.
3.
Sub-transmission inspection
1
Sla
rt
the engine.
Check
the
engine operation
by
ope rating
the thronle
with
the
sub-transmission
in
each D
and R
range.
008S the flngine speed
rise
in
Bny ranges?
NO
-
GO
TO
STEP
5.
YES
- GO
TO STEP
4.
4.
Centrifugal clutch
inspection
Check the centrifugal clutch (page 10·9).
Is
the centrifugal clutch
normal
condition
?
NO
- Correct the faulty
part
YES
-
GO
TO STEP 7.
5.
Sub-transmission
inspection 2
Check the operating condition in each sub-transmission
range.
Does the engine
speed
rise and
stop
both ranges?
YES
-
GO
TO STEP
6.
NO
-
Faulty
sub-transmission
6.
Automatic transmission bearing inspection
Remove the front
crankcase cover (page
10-5),
and
check
the
automatic
transmission bearing
condi-
tion.
Is the
bearing normal condition?
NO
-
Fau
lty
transmission
bearing
YES
-
GO
TO
STEP
7.
7.
Sub-transmission inspection
Check
the
sub-transmission (page 12-12
).
Is
the sub-transmission normal condition?
NO
- Faulty sub-transmission
YES
-
Faulty
automatic transmission
Excessive engine noise
•
Oil level
too
low
•
Worn or damaged connecting
rod
bearing
•
Worn crankshaft
main
journal bearing
•
Worn connecting rod small end
•
Worn balancer
bearing
•
Worn,
seized or chipped transmission gear
•
Worn
transmission bearings
Abnormal vibration
•
Improper balancer
timing
13-7
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