Pontiac tempest 1968 Service Manual page 661

12-40 1968 P O N T I A C SERVICE MANUAL
RE LAY-TERMINAL BOARD
1. Remove 4-lobe cam.
2. Remove ratchet pawl and pawl spring.
3. Remove relay armature and spring.
4. Chisel off the four bent-over tabs that secure
the coil mounting bracket to the base. Remove
and discard relay coil and terminal board assembly.
To mount a repacement relay, hold it securely
against the base mounting surface and bend locking
tabs over.
CA UTION: Be careful not to damage coil winding
or terminals.
5. To check the pump programming mechanism,
manually rotate the 4-lobe cam through complete 12-
tooth cylce (360°) and observe if pump is operating
as explained in the PRINCIPLE OF OPERATION
section of Diagnosis Manual.
V A L V E
1. Note position of valve relative to the pump
housing for reassembly then remove four screws
that secure valve to housing.
2. Remove housing-to-valve-body gasket and save
for reassembly.
PUMP
1. Remove ratchet wheel, ratchet wheel dog,
ratchet pawl and spring.
2. To release the plastic pump housing from the
sheet-metal base, pull it in the direction toward the
valve end until the housing grooves clear the sheet-
metal base. Next, detach the assembly from the
cam-follower pin, (Fig. 12-47).
PISTON
1. Remove valve.
•BLACK
IGNITION SW.
BUZZER LEAD
L.H. FRONT L.H. REAR
DOOR SW. DOOR SW.
NOTE-REAR DOOR JAMB SWITCH
STANDARD ON 26239
25639 & 26239 SERIES
BLACK
IGNITION SWITCH
BUZZER LEAD
25235, 25245,25635, 25645 & . 26245 SERIES
BUZZER LEAD
25267 i. 26267 SERIES
CLOCK FEED
CglN.
n p f
HEADLIGHT SW.
COURTESY LP
ON FUSE BLK.
_ _
n
ORN.
7 '
RR.COMPT.
LP. CONN.
T-ORANGE-
• 3
POWER TOP
CIRCUIT BKR
BY PASS BAR
ON FUSE BLOCK.
CIRCUIT BREAKER
USED WHEN POWER
WINDOWS & • O R POWER
SEATS ARE SPECIFIED.
HEATER FEED
CONN. p-JT)
BRN.—-J ~
CONVERTIBLE POWER TOP
25267 & I 6267 5ER E5
NOTE - POWER TAIL GATE WINDOW
STANDARD ON 25245, 25645 &. 26245
OPTIONAL ON 25235 i. 25635
REAR QUARTER COURTESY LAMP
STANDARD ON 25245,25645 A 26245
NOT AVAILABLE ON 25235 i. 25635
25235,25245,25635, 25645 & 26245 SERIES
F i g . 12-48 Pontiac Accessory Circuits