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Topic: Parking Brake adjustment

in Forum: C3 Handling Components


Parking Brake adjustment

Posted: 10/22/07 2:31pm Message 1 of 10
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Houston, TX - USA
Joined: 2/25/2003
Posts: 193
Vette(s): 1971 LS5 Convertible 4 sp
Ok, OK, we all know the parking brake design of our C3's is not the most effective.
Well, mine doesn't work at all and I need to do something about it as the car will soon have to go through a technical check to get the paperwork in order.
I started to follow the instruction of the Haynes manual but the sketch shown in the book doesn't match what I have on the car:
 
I can't find the hole with the adjustment screw.  Any idea how to proceed ?
Christian



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Parking Brake adjustment

Posted: 10/22/07 2:47pm Message 2 of 10
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the 2 holes at 12&6 o clock are the holes you want. rotate it till you can see abjusters then away you go.might need a torch to see in there.
Joanne2007-10-22 14:48:27


1979 Corvette

Parking Brake adjustment

Posted: 10/22/07 3:00pm Message 3 of 10
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Houston, TX - USA
Joined: 2/25/2003
Posts: 193
Vette(s): 1971 LS5 Convertible 4 sp
OK, thanks, But when rotating, everything rotates together, including what I see through the holes. I can I make what I see through slip ?


Parking Brake adjustment

Posted: 10/22/07 3:41pm Message 4 of 10
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BINGHAMTON, NY - USA
Joined: 7/19/2003
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Vette(s): ......
By the looks at the picture,it looks like the rotor has been off and put back in the wrong position blocking off the adjustment holes ? maybe ?Confused


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Parking Brake adjustment

Posted: 10/22/07 3:56pm Message 5 of 10
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Lawrenceville, GA - USA
Joined: 10/25/2002
Posts: 100
Vette(s): 1968 427 coupe and 96 LT4 six speed Gran Sport clone
  Hi, I agree with Ron, probably a replaced rotor that wasn't indexed to the hole in the spindle to allow acess to the star wheel adjustor on the park brake.  You'll have to unbolt the caliper, hang it out of the way and rotate the rotor until the hole lines up with the hole in the spindle.  Hopefully this won't cause excessive run-out in the system, but at least you'll be able adjust to get some gratification-flandy


Parking Brake adjustment

Posted: 10/22/07 4:39pm Message 6 of 10
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BINGHAMTON, NY - USA
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If that is what happened ,when you take the rotor off ,you can adjust the brakes a little at a time with the rotor off and put it back on till you get it set where you want it.


C3VR Lifetime Member #93

Parking Brake adjustment

Posted: 10/22/07 7:30pm Message 7 of 10
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Duncanville, TX - USA
Joined: 11/8/2003
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
These rotors have been off, and they are turned a notch or so, so the adjustment holes are blocked. You will need to remove the rotors, as stated above, and then turn them so the two adjustment holes line up with the holes in the hub.


                           


Joel Adams
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Parking Brake adjustment

Posted: 10/22/07 11:50pm Message 8 of 10
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oops,never looked hard enough to spot off set.


1979 Corvette

Parking Brake adjustment

Posted: 10/23/07 12:50am Message 9 of 10
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Houston, TX - USA
Joined: 2/25/2003
Posts: 193
Vette(s): 1971 LS5 Convertible 4 sp
OK, thanks.
 
Before I start: Do I need any special tool ?



Parking Brake adjustment

Posted: 10/23/07 5:10am Message 10 of 10
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20224
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Long screwdriver works for the adjustment of the star-wheels. While you have the rotor off, take a look at how they turn for the adjustment, and then you'll know which way you need to go.
When you take the caliper off, leave the pads in there, and use a socket, or block of wood to hold the pads out against the caliper. There are springs in the pistons that will push the pads toward the rotor, so you need something to keep them pushed into the caliper, so when you put the caliper back on, you don't have to fight with the pads.


Joel Adams
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

in Forum: C3 Handling Components


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