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4-1. TROUBLESHOOTING CONDITIONS
Basic conditions
1. A pronounced hesitation or "jerky"
movement during acceleration, decelera
tion, or sustained speed. (This must
be confused with engine surging or
transmission characteries).
A "rolling rumble" noticeabte
2.
speed;
high-pitched whine; a "clunk"
a
from
shaft drive component or area.
a
3. A locked-up condition of the shaft drive
mechanism; no power transmitted from
engine to rear wheel.
NOTE:
Damage areas A, B and
subtle and difficult to distinguish from normal machine operating noise. I f there is reason to believe
component ( s) are damaged, remove component
TROUBLESHOOTING
not
a t
low
C
above may be extremely difficult to diagnose. The symptoms are quite
Possible damaged areas
A. Damage t o bearings.
Improper gear lash; improper gear tooth contact.
B.
C. Gear tooth damage.
D. Drive flange/ball joint bolts loose.
E.
Broken drive shaft.
F. Disconnected flange/ball joint connection.
Driven cam seized t o middle gear drive pinion shaft.
G.
H. Broken gear teeth.
I.
Seizure due t o lack of lubrication.
Small foreign object lodged between moving parts.
J.
for specific inspection.
(s)
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