7490 30th Avenue North INSTALLATION INSTRUCTIONS FOR
Telephone: 727-345-5292 VBP PART #11661 1965 - 1982 CORVETTE
READ
INSTRUCTIONS THOROUGHLY BEFORE BEGINNING!
NOTE: If your lines should become damaged during
removal, or you feel that they should be replaced, VBP, Inc. stocks the
preformed right and left rear caliper lines described in Step #2.
1.
Assemble
actuating levers only if you take rear spindles out when changing parking brake
hardware. This is the best and easiest
way. Parking brake kit can be changed
with the axle not being removed. When
assembling actuating lever for both sides (refer to illustration #1), the left
side is marked “L”, the right side is marked “R”. Both actuating levers consist of one (1)
strut, one (1) lever, one (1) curved spring washer, and one (1) retaining
clip. Apply a light amount of light
grease lubricant on the pin and mating surface to insure smooth movement.
2.
After raising the
car, removal of calipers and rotor is necessary. Do not bend or twist metal caliper brake
lines and do not leave them connected to calipers or car during parking brake
hardware installation. Older metal
caliper lines can fracture or fatigue during twisting or bending and this
condition can cause a brake failure.
When removing calipers from rotor, put spacers approximately 1-1/4” wide
by 5” long by 2-1/2” high (wooden blocks work good) between the brake pads in
the caliper, after removing pad guide pin from the caliper. This will keep pads and pistons pushed in
position during removal of calipers and reinstallation of the calipers will be
much easier. If rotor is still onto the
axle, drill off rivet heads only with a 3/8” drill after center punching as
close on center of rivet head as possible.
Mark rotor before taking off axle since it must be in the same position
as it came off the axle when reinstalled to insure rotor will not run out and
cause air to be pumped into the rear calipers.
This is very important. Rotor and axle are machined between centers
at the time of manufacturing, and this relationship should never be disturbed
or altered. The rotor and axle can be
removed from the trailing arm as one unit, thus making it necessary for the
rotor and axle to be separated from each other by drilling out the rivet
heads. In our opinion, removal of the
rotor and axle from the trailing arm as one unit is the easiest and most
efficient method of installing the Stainless Steel Parking Brake Kit.
3.
Loosen parking
cable so that it is real loose at equalizer adjustment and unhook cable at
actuating lever.
4.
Remove parking
brake shoes. First, disconnect upper
retractor spring out of shoes. Then,
remove hold-down cap by turning it 90 degrees, holding pin with long nose
pliers and pushing down on the hold-down cap.
Pull shoes out from anchor pin on top, unhook lower adjusting screw
spring, and pull out adjusting screw assembly.
I L L U S T R A T I O N # 1
5.
Clean or sand
contact faces on backing plate (6 places) and anchor pin where brake shoes
locate, and lubricate with a light coat of light grease.
6.
Install assembled
stainless actuating lever through “T” slot the same way you removed the old
lever. (If axle is not removed,
actuating lever has to be assembled on the car).
7.
Install parking
brake shoes one side at a time. Insert
hold-down pin through shoe. Push
hold-down spring and hold-down cap in advance.
Push hold-down spring and cap over hold-down pin through slot. Turn 90 degrees Shoe will now be secure
against backing plate. Rear hold-down
pin cannot be replaced unless backing plate is removed. If pin looks good on both sides, use old
pins.
8.
Install retractor
spring first after actuating lever is located at notches at brake shoes. This
is very important. Spread lower side
of shoes and install adjusting screw assembly with starwheel screw all the way
in barrel screw and install adjusting screw spring. Starwheel adjusting screw on left side
(driver’s side of car) should be closer to rear of car, (secondary) rear
parking brake shoe. Starwheel adjusting
screw on right side (passenger’s side of car) should be closer to front of car,
(primary) front parking brake shoe. (Refer to Illustration #2).
9.
Reconnect parking
brake cable into slot of actuating lever and pull cable to see if everything is
functioning properly.
10.
Install rotor on
car in same position as it came off.
(Refer to Step #2). Use two or
three lug nuts and tighten rotor to axle flange. Turn rotor with hold down so you can see and
have access to starwheel adjusting screw for adjusting parking brake shoes.
11.
Next, adjust
brake shoes through hole in rotor using screwdriver to turn starwheel adjuster
screw, (both adjusters and right hand thread) by turning rotor by hand
occasionally until parking brake shoes are tight against parking drum on both
sides. To adjust properly, turn back
each side
12.
Install caliper
and brake lines back in position. Rear
brake system must be bled again to remove air from brake system.
13.
Adjust parking
brake cable at cable equalizer and lever inside to your own satisfaction. Brake lever at half-pulled position should
hold your car in parking condition.
NOTE:
When installing new parking brake shoes, it is necessary to break in new
shoes. Burnishing new brake linings is accomplished by
driving the car at a speed of 35 to 40 miles per hour for about one minute with
a light drag on the parking brake shoes.
Return lever to release position after a minute, let rotor cool, repeat
two or three times. This should break in
new shoes. Recheck adjustment. When using old linings, simply install as
removed, and breaking in of parking brake shoes is not necessary.
I L L U S T R A T I O N # 2
