Pontiac Fiero 1988 Service Manual page 811

125C-24 AUTOMATIC TRANSAXLE
w
m
LO ROLLER CLUTCH ASSEMBLY
Disassemble (Figure IS)
1. Selective washer (660)
2. Race (661)
3. Clutch assembly (662)
4. Lo race thrust washer (663)
5. Reaction carrier thrust washer (666)
Inspect
• Selective spacer (660) for damage
• Lo roller clutch cam (665)
® Carrier bushing (664) for damage
@ Reaction carrier pinions (665) for damage, rough
bearings or tilt
Measure
Pinions (665 - end play with feeler gage - end
play range 0.24-0.69 mm (0.009"-0.027").
Inspect (Figures 56 and 26)
• Clutch race (661) for damage, cracks or wear
• Rollers, springs and cage (662) for damage or
wear
• Carrier (4 tanged) thrust washer (665) for scoring
or distortion
Assemble (Figures 56 and 26)
1. Thrust washer (663) into carrier assembly (665)
2. Rollers, into cage (662)
3. Clutch assembly (662)
4. Clutch race (661) - rotate into place.
5. Tanged thrust washer (666) - use petrolatum to
hold in position.
6. Carrier (665) and clutch assembly into internal
gear (668)
7. Selective spacer (660)
8. Reaction gear set (660-669) into case
Make sure gear set does not contact spacer (671).
LO AND REVERSE CLUTCH PLATES
w
-•4-
1.
2.
3.
5.
Inspect (Figure 56)
Backing plate (659) for damage or cracks
Lo and reverse clutch composition and steel
plates (658) for wear or burning
Install or Connect (Figures 56 and 70)
Backing plate (659) stepped side down into case
Steel waved plate (688)
Lubricant on composition plates (658) before
installation
Alternate composition plate first, then steel plate
(See Figure 70)
Steel waved (688) plate
Spacer ring (650) - ring is 1.07 mm (0.042") thick
6 4 a
6 5 2 —
6 5 3
649 HOUSING A S M . , LO & R E V E R S E C L U T C H
6 5 1 S E A L , L O & R E V E R S E PISTON (OUTER)
6 5 2 S E A L , L O & R E V E R S E PISTON (INNER)
6 5 3 PISTON, LO & R E V E R S E C L U T C H
6 5 5 SPRING, LO & R E V E R S E C L U T C H R E L E A S E
6 5 6 RETAINER, LO & R E V E R S E C L U T C H SPRING
6 5 7 RING, S N A P
H 125C-149-5
Figure 57 Lo & Reverse Clutch Housing Assembly
LO AND REVERSE CLUTCH HOUSING
Disassemble (Figure 57)
1. Snap ring (656) - push down on spring retainer
(657).
2. Waved spring (655)
3. Clutch piston (653)
4. Inner (652) and outer (651) seals from piston
(653)
]9 Inspect (Figure 57)
• Waved spring (655) for damage
• Inner (652) and outer (651) seals for nicks or
rolling
• Clutch housing (649) for damage or plugged feed
hole
• Clutch housing bushing for damage, cracks or
scoring
• Clutch piston (653) for cracks or damage
Assemble (Figures 56,57 and 58)
1. Seals (651 and 652) onto piston (653)
2. Piston (653) - with J-26744-A inner seal (652)
first, then outer seal
3. Waved spring (655)
4. Retainer (656) - cupped side down
5. Snap ring (657) - push down on spring retainer