Dodge D150 1990 Service Manual page 952

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AUTOMATIC TRANSMISSION 21-101
Fig. 25 Front Clutch Spring Location—11 or 13
Spring
inch). I f clearance is incorrect, t h e clutch plates, discs
and/or pressure plate w i l l have t o be changed.
(12) Set front d u t c h aside for assembly i n s t a l l a -
t i o n .
REAR CLUTCH—A-998/999
CLUTCH DISASSEMBLY
(1) Remove the selective snap r i n g (Fig. 26).
(2) Remove pressure plate and the clutch discs and
steel plates (Fig. 26).
(3) Remove the wave spring a n d piston spring (Fig.
26).
(4) Remove t h e # 2 t h r u s t washer (Fig. 26).
(5) T u r n t h e clutch retainer over and t a p i t o n
wood block t o dislodge the c l u t c h piston.
(6) Remove a n d discard the piston seals.
(7) Remove the i n p u t shaft snap r i n g and press the
i n p u t shaft o u t of the retainer. Discard t h e shaft
snap r i n g . Use a new r i n g a t assembly.
(8) Remove the seal r i n g f r o m t h e clutch r e t a i n e r
b u t leave the i n p u t shaft seal r i n g s i n place for i n -
spection.
Clutch Inspection
Clean the 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 t h e 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 h e a v i l y scored, warped, or broken.
Be sure the d r i v i n g lugs on t h e discs and 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 any way.
Replace the piston spring and 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 r e t a i n e r .
The steel plates should slide freely i n t h e slots. Re-
place the piston r e t a i n e r i f t h e grooves are w o r n or
damaged. Also check action o f the check b a l l i n the
piston retainer. T h e b a l l m u s t move freely a n d not
stick.
Replace t h e r e t a i n e r b u s h i n g i f w o r n , scored, or
there is any doubt about b u s h i n g condition.
Inspect t h e piston and r e t a i n e r seal surfaces for
nicks or scratches. M i n o r scratches can be removed
w i t h crocus cloth. However, replace the piston and/or
retainer i f the seal surfaces are seriously scored.
Check condition of the # 2 t h r u s t washer. Replace
the washer i f w o r n or damaged. Washer thickness
should be .061 t o .063 inch.
Check condition of the teflon or cast i r o n seal r i n g s
on the i n p u t shaft. Replace these seal r i n g s o n l y i f
they are obviously damaged. I f new r i n g s are re-
quired, service replacement r i n g s w i l l be cast i r o n
hooked-joint type.
Check the i n p u t shaft for wear, or damage. Replace
the shaft i f w o r n , scored or damaged i n a n y way.
Fig. 26 Rear Clutch Components—A-998/999