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AUTOMATIC TRANSMISSION
•
ASSEMBLING
REAR
CLUTCH-A-938/999
(1) Lubricate the steel plates a n d soak t h e d r i v e
discs w i t h transmission f l u i d .
(2) I n s t a l l new seal rings i n the c l u t c h r e t a i n e r a n d
on t h e i n p u t shaft i f necessary.
(3) Press t h e i n p u t shaft i n t o t h e clutch r e t a i n e r
a n d secure t h e shaft w i t h a new snap r i n g .
(4) I n s t a l l new seals on t h e clutch piston. T h e n l u -
bricate t h e seals w i t h Door Ease or petroleum j e l l y t o
ease piston installation.
(5) I n s t a l l t h e clutch piston i n t h e retainer. Use a
t w i s t i n g m o t i o n to seat the piston a t the r e t a i n e r bot-
t o m . D o n o t f o r c e t h e p i s t o n s t r a i g h t i n . T h i s
c o u l d c u t o r f o l d t h e seals o v e r c a u s i n g l e a k a g e
a n d s l i p .
(6) I n s t a l l t h e piston spring and wave s p r i n g ( F i g .
27). D o n o t i n s t a l l a s p a c e r r i n g i n t h e 999 r e a r
c l u t c h . T h e s p a c e r r i n g i s o n l y u s e d i n t h e 727
r e a r c l u t c h ( F i g . 27).
SELECTIVE
SNAP RING
PISTON SPRING
WAVE SPRING
SPACER RING
(A-727
ONLY)
RH294
Fig. 27 Piston Spring And Wave Spring
Position—AH
(7) I n s t a l l t h e first pressure plate i n t h e r e t a i n e r .
T h e n i n s t a l l a clutch disc followed by a steel plate
u n t i l a l l discs and plates are installed (Fig. 26).
(8) I n s t a l l the r e m a i n i n g pressure plate and t h e se-
lective snap r i n g (Fig. 26).
(9) Measure clutch pack clearance (Fig. 28). Clear-
ance should be .81 - 1.39 m m (.032 - .055 inch). I f
clearance is incorrect, change t h e selective snap r i n g
(see specifications section). However, i f a t h i c k e r or
t h i n n e r snap r i n g does not provide proper clearance,
the steel plates, discs and pressure plates m a y have
to be changed.
(10) Coat the # 2 t h r u s t washer w i t h p e t r o l e u m
j e l l y and i n s t a l l i t over t h e i n p u t shaft a n d i n t o t h e
piston retainer. Use enough petroleum j e l l y t o h o l d
the washer i n place i n the retainer.
FEELER
GAUGE
RH295
Fig. 28 Measuring Rear Clutch Pack Clearance—All
REAR CLUTCH-A-727
CLUTCH
DISASSEMBLY
(1) Remove t h e selective snap r i n g ( F i g . 29).
(2) Remove t h e outer pressure plate a n d t h e steel
plates and discs ( F i g . 29).
(3) Remove t h e i n n e r pressure plate, wave spring,
spacer r i n g a n d piston^ s p r i n g ( F i g . 29).
(4) Remove t h e clutch piston a n d piston r e t a i n e r
f r o m t h e clutch retainer. B u m p t h e clutch retainer
on a wood block t o dislodge t h e piston a n d retainer.
(5) Remove t h e # 2 t h r u s t washer.
(6) Remove t h e i n p u t shaft snap r i n g and press t h e
shaft o u t of the clutch retainer.
(7) Remove and discard t h e clutch piston seals ( F i g .
29).
(8) Do not remove the i n p u t shaft seal rings unless
they are obviously damaged (broken, cracked).
Clutch Inspection
Clean t h e clutch components w i t h solvent.
Replace t h e clutch discs i f warped, w o r n , scored,
burned/charred, t h e lugs are damaged, or i f the fac-
i n g is f l a k i n g off. Replace t h e steel plates a n d t h e
pressure plate i f heavily scored, warped, or broken.
Be sure t h e d r i v i n g lugs o n t h e discs a n d plates are
also i n good condition. T h e lugs m u s t n o t be bent,
cracked or damaged i n a n y way.
Replace the piston spring a n d wave s p r i n g i f p a r t
is distorted, warped or broken.
Check the l u g grooves i n t h e clutch piston retainer.
The steel plates should slide freely i n t h e slots. Re-
place t h e piston retainer i f t h e grooves are w o r n or
damaged. Also check action o f t h e check b a l l i n t h e
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