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AUTOMATIC TRANSMISSION
21 - 91
T R A N S M I S S I O N
O V E R H A U L
TRANSMISSION DISASSEMBLY
(1)
Clean
transmission exterior
w i t h a
steam
cleaner or w i t h solvent. Cleanliness d u r i n g overhaul
is extremely i m p o r t a n t . Clean a l l parts w i t h solvent
a n d d r y w i t h compressed a i r only. D o not u s e s h o p
towels to d r y t r a n s m i s s i o n p a r t s . S h o p
towels
w i l l leave lint p a r t i c l e s o n t r a n s m i s s i o n
p a r t s
w h i c h c a n p l u g fluid p a s s a g e s o r interfere w i t h
v a l v e operation.
(2) Place transmission i n a repair stand (Fig. 1).
Fig. 2 Transmission Mounted On Repair Stand
(3) Measure i n p u t shaft end play before disassem-
b l y to determine i f a t h r u s t washer change is needed
(Fig. 2).
(4) A t t a c h d i a l indicator to converter housing (Fig.
1). Position indicator plunger against i n p u t shaft and
zero indicator. Move i n p u t shaft i n a n d o u t a n d
record reading. E n d play should be.56 - 2.31 m m
(.022 - .091 i n c h o n 998/999 models and .86 - 2.13
m m (.034 - .084 inch) on 727 models.
Oil Pan And Valve Body
(1) Remove o i l pan bolts and remove pan and gas-
k e t .
Fig. 2 Measuring Input Shaft End Play
(2) Loosen clamp bolts and remove t h r o t t l e a n d
m a n u a l valve levers from m a n u a l shaft.
(3) Remove n e u t r a l switch.
(4) Remove valve body bolts a n d p a r k lock rod E-
clip. L i f t valve up and off transmission and remove
lock rod from valve body.
(5) Remove accumulator s p r i n g a n d piston.
Extension Housing
(1) P u l l p a r k i n g lock rod out o f case.
(2) Remove distance sensor a n d speedometer and
gear i f not previously removed.
(3) Remove plate and gasket f r o m underside of
housing.
(4) Spread o u t p u t shaft bearing snap r i n g as far as
possible and w o r k housing off transmission and out-
p u t shaft.
(5) Remove snap r i n g securing o u t p u t shaft bearing
to shaft. Use heavy d u t y snap r i n g pliers for t h i s
task.
(6) Remove the bearing from t h e shaft.
(7) O n 727, remove the second snap r i n g used to
position the bearing on the o u t p u t shaft (998/999 do
not have t h i s second snap r i n g ) .
Governor And Park Gear
(1) Remove snap r i n g t h a t r e t a i n s governor and
p a r k gear on o u t p u t shaft.
(2) Remove governor valve shaft snap r i n g s and re-
move governor valve and shaft f r o m governor body.
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