Assembly Of Push Rod Boot And Master Cylinder To Power Unit - Pontiac Grand Prix Service Manual

5C -8
1969 PONTIAC SERVICE MANUAL
assemble retainer on end of hub, being careful not to
chip plastic.
ASSEMBLY OF PUSH ROD BOOT AND MASTER
CYLINDER TO POWER UNIT (Fig. 5C-1)
1. Install air filte; in push rod boot and assemble boot
over end of valve rod, using care to avoid tearing.
Press boot against rear shell.
!
2. Before mounting master cylinder, check distance A
(Fig. 5C-9) from hydraulic push rod to master cylinder
mounting face on front shell. This dimension A, as
shown in Figure 32-9, should be 1.200". If push rod
length is not correct, follow adjustment procedure
below. When push rod length is correct, attach master
cylinder to power section with lockwashers and nuts.
Tighten nuts to 24 lb. ft. torque.
original unit. If, however, push rod is transferred to
another unit or new push rod is used, adjustment will
be necessary. To adjust push rod, hold serrated end of
push rod with pliers and turn adjusting screw IN to
shorten or OUT to lengthen push rod. Measure push
rod height with push rod installed in unit, using either
a height gage or tool J 7723-01. See Figure 5C-10 for
details for making height gage.
POWER BRAKE ASSEMBLY
-
INSTALL
1. Place power brake assembly into position and install
four rear housing to dash attaching nuts from inside of
car. Tighten nuts to 24 lb. ft. torque.
2. Install clevis pin retainer.
3. Adjust stop light switch if necessary. See Section 5
for service.
PUSH ROD ADJUSTMENT
4. Install vacuum check valve.
The self-locking adjustment screw is set to correct
5. Attach hydraulic lines.
dimension at time of original assembly of power unit.
Under normal service, no further adjustment should be 6. Bleed brakes as necessary and fill fluid reservoirs.
needed provided push rod assembly remains in Fluid level should be as shown in Section 5.
TORQUE SPECIFICATIONS
LB. FT.
Power cylinder housing to master cylinder nuts.
. . . .
.24
Rear housing to dash nuts.
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. .
.
. .
. . . . . .
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. .
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.24
Fig. 5C-11 Special Tools