Pontiac Fiero 1988 Service Manual page 262

POWER HEAD ASSEMBLY 5D2-1
S E C T I O N S D 2
POWER HEAD A S S E M B L Y - TANDEM
DIAPHRAGM
C O N T E N T S
GENERAL
DESCRIPTION
5D2-2
ON-CAR SERVICE 5D2-2
Booster Assembly 5D2-2
Exterior Components
5D2-2
UNIT
REPAIR 5D2-2
Unlocking and Locking Booster
5D2-3
Power Piston Group 5D2-3
Power Piston Disassembly
5D2-4
Gaging Procedure
5D2-7
1. BOOT
2. S I L E N C E R
3. V A C U U M C H E C K
V A L V E
4. G R O M M E T
5. V A C U U M SWITCH
(SOME M O D E L S )
6. G R O M M E T
7. F R O N T HOUSING S E A L
8. P R I M A R Y PISTON
B E A R I N G
9. R E A R HOUSING
10. F R O N T HOUSING
11. R E T U R N SPRING
12. PISTON ROD ( G A G E D )
13. R E A C T I O N
R E T A I N E R
14. POWER H E A D
S I L E N C E R
15. DIAPHRAGM
R E T A I N E R
16. P R I M A R Y
DIAPHRAGM
17. P R I M A R Y SUPPORT
P L A T E
18. S E C O N D A R Y PISTON
B E A R I N G
19. HOUSING D I V I D E R
20. S E C O N D A R Y
DIAPHRAGM
21. S E C O N D A R Y
SUPPORT P L A T E
22. R E A C T I O N DISC
23. R E A C T I O N PISTON
24. R E A C T I O N BODY
R E T A I N E R
25. R E A C T I O N BODY
26. AIR V A L V E SPRING
27. R E A C T I O N BUMPER
28. R E T A I N I N G RING
29. F I L T E R
30. R E T A I N E R
31. O-RING
32. AIR V A L V E PUSH
R O D A S S E M B L Y
33. POWER PISTON
HM0001-5P2-AB
Figure 1 Booster Assembly