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9-3 SERVICING INFORMATION
Complaint
Engine
lacks
power.
Symptom and possible causes
-
-
1. Loss of tappet clearance.
Remedy
Adjust.
Clean,
Add oil.
Replace
o r
clean.
Adjust.
Retighten or repface.
Change.
Engine overheats.
bon deposit on piston crowns.
2.
Not enough o i l in
the
engine,
3. Defective oil pump
o r
clogged oil circuit.
4. Fuel level
roo
low in float chambers.
5.
Suck
air from intake pipes.
6. Use i n c o r r w
engine and oil.
2. Weakened valve springs.
1
Replace.
3. Valve timing out of adjustment.
1
Adjust.
4. Worn piston rings or cylinders.
1
Replace.
5.
Poor
seating of valves,
Repair.
Noisy shaft drive.
6.
Spark plug
gaps inearrect.
7.
Clogged jets in carburetors.
8. Floatchamber fuel level out of adjustment.
9. Clogged air
cleaner
element.
10. Carburetor balancing screw loose.
11. Suck air from intake pipe.
12. Too
much
engine
oil in the engine,
- -
- .
-
-
Noise seems to came from
secondary W e l gear and
final
bevel gear assemblies.
1, Oil level too low. (final bevel gear)
1
Refill.
'
Adjust or replace.
Clean.
Adjust.
Clean.
Retighten.
Retighten or replace.
Drain out excess oil.
I
2.
Excessive backlash.
Adjust.
I
3.
Improper tooth contact.
I
Adjust.
4.
Damage to
bearings.
I
Noise
seems to come from propeller shaft area.
I
:
I. Propeller shaft
joint bolts loose.
Retighten.
I
2. Propeller shaft splines
damaged or worn.
Replace,
NO power
transmitted
from
engine to rear wheel.
Secondary bevel
gear
and final bevel gear
assemblies oil
leak.
3.
Insufficient
lubricant.
1. Broken
propeller shaft.
2. Bmken
gear
teeth.
- - -
.
- - -
-
1. Damage t o oil seals.
2. Damage to
0
rings.
Refill.
Replace.
Replace.
Replace.
Replace.
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