Front Servo Inspection; Rear Servo-Accumulator Disassembly, Inspection, Assembly - Jeep 1979 CJ-5 Technical & Service Manual

2 C 4 4
AUTOMATIC TRANSMISSION
Front Servo
N O T E : Do not remove the teflon ail seal ring from the
front servo piston unless the seal ring requires replace-
ment. Service oil seal rings are aluminum instead of
teflon.
CAUTION: The spring retainer, servo pin, retainer
ring and servo piston are identical for 1971 through 1979
transmissions but are not interchangeable with pre-1971
parts.
Inspect the servo pin for damage.
Inspect the piston, oil seal ring and seal ring groove
for damage. Check for free movement of the ring in the
ring groove.
Inspect the piston for cracks or porosity and check the
fit of the servo pin in the piston (fig. 2C-57).
T E F L O N O I L SEAL R I N G
R E T A I N E R R I N G
S E R V O PIN \
SERVO SPRING
\
/
V
J
\
S E R V O PISTON
SPRING R E T A I N E R
J 4 3 0 2 2
Fig. 2C-57 Front Servo Assembly
Rear Servo-Accumlater
V
Wit
Fig. 2C-58 „ Accumulator Piston Removal
J 4 2 4 7 8
Fig. 2C-59 E-Ring Retainer Removal
Disassembly
(1) Remove rear accumulator piston from rear
servo piston (fig. 2C-58).
(2) Remove E-ring retaining rear servo piston to
servo pin (fig. 2C-59).
(3) Remove rear servo piston and seal from servo
pin (fig. 2 C - 5 9 ) .
(4) Remove washer, spring and retainer.
Inspection
N O T E : Do not remove the teflon oil seal rings from the
rear accumulator piston unless the oil seal rings require
replacement. If the teflon inner oil seal ring (small di-
ameter) requires replacement, use the aluminum oil seal
ring supplied in the service replacement kit. The depth
of the large diameter ring groove in the rear accumula-
tor piston is machined shallower to accept the large
teflon oil seal ring. If this ring requires replacement, use
only a teflon oil seal ring as a replacement.
Inspect the servo piston and piston oil grooves for
damage (fig. 2C-60).
Check for free movement of the seal rings in the
piston grooves.
Check for free movement of the accumulator piston in
the servo piston.
Inspect the servo pin for scores or cracks.
Inspect the accumulator and servo piston for cracks
and porosity.
Assembly
(1) Install spring retainer with cap facing down-
ward and install spring, and flat washer on servo pin
(fig.2C-60).