Transmission Jumps Out Of Gear; Oil Leakage - Fiat 850 Sedan 1968 Shop Manual

TRANSMISSION· DIFFERENTIAL
Transmission Jumps out of Gear.
107
POSSIBLE CAUSES
1)
Improper shifting.
2) Gearshift actuating rod out of adjustment.
J)
Incorrect assembly or wear of striker rod position-
ing balls and springs.
4) Excessive end play caused by wear in the shift
forks, sliding gear or sleeve grooves, or ball bear-
ings.
5) Striker rod rollers or balls worn or assembled
incorrectly.
6) Worn synchronizer rings.
Oil Leakage.
POSSIBLE CAUSES
1) Overfilled transmission case.
2) Front extension, side cover and bell housing
mounting nuts loose.
3) Speed selector and engagement lever seal at
side cover damaged.
4) Transmission gaskets leaky.
Removal.
Remove the transmission as follows:
Disconnect the plus cable from battery terminal
post.
Remove upper rear headlining.
Remove the generator and starting motor.
Using wrench A. 57068 disconnect shock absorbers
from lower mounting.
Remove wheel shaft flexible joints.
Disconnect the control cable from clutch throwout
lever and the speedo cable.
Disconnect the gear selector rod.
Support the transmission and differential assembly
by means of the hydraulic jack with adapter A. 70516
REMEDIES
1) Be sure the gears are completely engaged before releasing
the clutch pedal.
2) Adjust as outlined on page 120.
3) Remove cover and overhaul parts. Assemble the proper
way.
4) Rebuild transmission and replace worn parts.
5) Disassemble and replace worn parts and assemble the cor-
rect way as outlined on page 176.
6) Overhaul sliding gears and sleeves and replace bumped
ones. Replace synchronizer rings.
REMEDIES
1) Check oil level for lower brim of filler plug seat.
2) Check tension and tighten nuts to specified torques.
3) Remove cover and lever and renew seal on side cover.
4) Replace gaskets which do not warrant oil tightness.
and remove transmission differential assembly mount-
ing screws from engine using wrench A. 55035.
Remove the flywheel cover.
Back out the screws holding the transmission-
differential assembly mounting brackets on body
shell.
Properly work on hydraulic jack so to extract
the clutch shaft from driven plate.
Lift out the transmission-differential assembly.
Disassembly.
First of
all
remove the left side mounting bracket
and tie up the axle shafts with a rope lest they
may
fall
down on disassembly.