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D. Overheating
E. Excessive noise in transmission
F. Noisy Pump
G. Clutch does not release
H. Clutch slipping
1. Insufficient Oil cooler Capacity
2. Insufficient flow of cooling water
3. Clutch slipping
4. Water temperature too high at
cooler
1. Bearings worn or broken
2. Gears worn or broken
3. Noise in forward only
4. Noise in reverse only
5. Improper alignment
1. Dirt or sludge in oil
2. Clogged hoses
3. Pump cavitation
4. Defective oil pump assembly
1. Transmission is misaligned
2. Improper oil sump
3. Clutch discs warped
4. Forward and reverse clutch
cylinders dirty or distorted
5. Rear commutator bushing is worn
6. Incorrect linkage adjustment to
selector valve assembly
7. Clutch discs fused due to slippage
and overheating
1. Low oil pressure
2. Transmission is misaligned
3. Oil temperature is too high
4. Worn clutch discs
5. Incorrect linkage adjustment to
selector valve assembly
6. Improper oil
1. Install adequate oil cooler
2. Increase water line sizes
3. Refer to symptom A
4. Decrease water temperature to
cooler or relocate heat exchanger in
cooling system.
1.Inspect bearings for scored races,
broken roller, flat -spots, etc.
2. Inspect gears and replace if
necessary
3. Reverse position may be mistakenly
used for forward. Selector valve lever
must point forward when boat is in
forward motion.
4. This is normal because more gears
are in operation in reverse mode.
5. Refer to section 3, pg.8
1. Remove oil pump and hoses. Clean
thoroughly and reinstall
2. Clean and replace as required
3. Oil level may be too low
4. Refer to oil pump section p.17
1. Refer to installation section
2. Refer to lube chart
3. Replace as necessary
4. Clean or replace as necessary
5. Replace as necessary. See
replacement wear limits chart
6. Adjust linkage
7. Replace as necessary
1. See symptom A
2. Refer to installation section
3. Temperature should be 140 to
160 F (60 to 71 C) at selector valve.
Check heat exchanger system
4. Replace as necessary, see
replacement wear limits chart
5. Adjust linkage
6. See lube chart
21
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