7A1-6
MANUAL TRANSMISSION
DIAGNOSIS
Condition
Possible Cause
Correction
Gears slipping out of
mesh
Worn shift fork shaft
Worn shift fork or synchronizer sleeve
Weak or damaged locating springs
Worn bearings on input shaft or countershaft
Worn chamfered tooth on sleeve and gear
Replace.
Replace.
Replace.
Replace.
Replace sleeve and gear.
Hard shifting
Inadequate lubricant
Improper clutch pedal free travel
Distorted or broken clutch disc
Damaged clutch pressure plate
Worn synchronizer ring
Worn chamfered tooth on sleeve or gear
Worn gear shift control shaft joint bush
Distorted shift shaft
Replenish.
Adjust.
Replace.
Replace clutch cover.
Replace.
Replace sleeve or gear.
Replace.
Replace.
Noise
Inadequate or insufficient lubricant
Damaged or worn bearing(s)
Damaged or worn gear(s)
Damaged or worn synchronizer parts
Replenish.
Replace.
Replace.
Replace.