Buick LeSabre 1965 Service Manual page 169

CLUTCH, S-M TRANSMISSIONS 45000 SYNCHROMESH 4 - 3 3
SYMPTOM AND PROBABLE CAUSE
NOISY IN LOW AND REVERSE ONLY
a. Worn or damaged first and reverse sliding
gear.
b. Damaged or worn countergear.
NOISY IN REVERSE ONLY
a. Worn or damaged reverse idler gear.
b. Worn reverse idler gear bushings.
c. Damaged or worn reverse countergear.
EXCESSIVE BACKLASH IN SECOND ONLY
a. Second speed gear thrust washer worn.
b. Mainshaft rear bearing not properly in-
stallea in case.
c. Worn countergear rear bearing.
EXCESSIVE BACKLASH IN ALL REDUCTION
GEARS
a. Worn countergear bearings.
b. Excessive end play in countergear.
LEAKS LUBRICANT
a. E x c e s s i v e amount of l u b r i c a n t in
transmission.
b. Loose or broken clutch gear b e a r i n g
retainer.
c. Clutch gear b e a r i n g retainer g a s k e t
damaged.
d. Cover loose or gasket damaged.
e. Operating shaft seal leaks.
f. Idler shaft expansion plugs loose.
g. Countershaft loose in case.
h. Lack of sealant on bolts.
i. Worn extension oil seal.
PROBABLE REMEDY
a. Replace worn gear.
b. Replace countergear assembly.
a. Replace reverse idler gear.
b. Replace reverse idler gear.
c. Replace countergear assembly.
a. Replace thrust washer.
b. Replace bearing, lock or case as necessary.
c. Replace countergear bearings and shaft.
a. Replace countergear bearings and shaft.
b. Replace countergear thrust washers.
a. Drain to correct level.
b. Tighten or replace retainer.
c. Replace gasket.
d. Tighten cover or replace gasket.
e. Replace operating shaft seal.
f. Replace expansion plugs.
g. Replace case.
h. Coat bolts with sealant.
i. Replace seal.