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Condition
OIL PRESSURE GAUGE
Gauge does not register or is
inaccurate
ALL GAUGES
All gauges do not operate
All gauges read low or erratically
All gauges pegged
WARNING LIGHTS
Light(s) do not come on when igni-
tion is ON, but engine is not started
Light comes on with engine
running
It is false economy to replace individual clutch components. The pressure plate, clutch plate
and throwout bearing should be replaced as a set, and the flywheel face inspected, whenever
the clutch is overhauled. See Chapter 6 for service procedures.
Condition
Clutch chatter
Clutch grabbing
Clutch slips
Possible Cause
1. On mechanical gauge, Bourdon tube may be bent or kinked.
2. Low oil pressure. Remove sending unit. Idle the engine briefly. If
no oil flows from sending unit hole, problem is in engine.
3. Defective gauge. Remove the wire from the sending unit and
ground it for an instant with the ignition ON. A good gauge will
go to the top of the scale.
4. Defective wiring. Check the wiring to the gauge. If it's OK and the
gauge doesn't register when grounded, replace the gauge.
5. Defective sending unit.
1. Blown fuse
2. Defective instrument regulator
3. Defective or dirty instrument voltage regulator
4. Loss of ground between instrument voltage regulator and frame
5. Defective instrument regulator
1. Defective bulb
2. Defective wire
3. Defective sending unit. Disconnect the wire from the sending
unit and ground it. Replace the sending unit if the light comes on
with the ignition ON.
4. Problem in individual system
5. Defective sending unit
Troubleshooting Clutch Problems
Possible Cause
1. Grease on driven plate (disc) facing
2. Binding clutch linkage or cable
3. Loose, damaged facings on driven plate (disc)
4. Engine mounts loose
5. Incorrect height adjustment of pressure plate release levers
6. Clutch housing or housing to transmission adapter misalign
ment
7. Loose driven plate hub
1. Oil, grease on driven plate (disc) facing
2. Broken pressure plate
3. Warped or binding driven plate. Driven plate binding on clutch
shaft
1. Lack of lubrication in clutch linkage or cable (linkage or cable
binds, causes incomplete engagement)
2. Incorrect pedal, or linkage adjustment
3. Broken pressure plate springs
4. Weak pressure plate springs
5. Grease on driven plate facings (disc)
TROUBLESHOOTING
301
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