OK brake problem has me stumped
Race Director
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
Re: OK brake problem has me stumped (wcsinx)
The adjustment is made by removing the clevis from the brake peddle, and either turning the clevis clock wise or counterclockwise....this is done by crawling under the dash and removing the clevis pin. I don't think this adjustment is any different on a vehicle equipped with or without the booster. This adjustment determines the length of the rod. I don't think you have to make more than two or three turns.
Thread Starter
Drifting
Joined: Jun 2000
Posts: 1,476
Likes: 1
From: Mt Juliet TN
Re: OK brake problem has me stumped (GDaina)
i would probably want to shorten the rod since the brake pedal gets too tight. No wait I would want to lengthen it to give the brake more play. Yeah thats it. No wait I was right the first time I need to shorten the rod so the brake doesn't top out.
[Modified by TTop Tony, 1:46 PM 4/15/2004]
[Modified by TTop Tony, 1:46 PM 4/15/2004]
Team Owner
Joined: Mar 2002
Posts: 24,160
Likes: 78
Re: OK brake problem has me stumped (GDaina)
The adjustment is made by removing the clevis from the brake peddle, and either turning the clevis clock wise or counterclockwise....this is done by crawling under the dash and removing the clevis pin. I don't think this adjustment is any different on a vehicle equipped with or without the booster. This adjustment determines the length of the rod. I don't think you have to make more than two or three turns.
edited to add: Ok I guess it IS possible that your pedal side rod has worked it's way partially out of the clevis. That would in effect lengthen the pedal to booster linkage and may inadvertently apply the brakes. So yeah, crawl under there and make sure the rod's hex is firmly seated on the clevis. If not, you don't need to take the clevis loose from the pedal (PITA). You can just turn the hex on the push rod with a wrench. The rod should spin freely inside the booster.
[Modified by wcsinx, 8:31 PM 4/15/2004]
Drifting
Joined: Apr 2004
Posts: 1,651
Likes: 11
From: Seattle WA
Re: OK brake problem has me stumped (TTop Tony)
I redid the brakes on my 72 about 5 years ago (the first time) 2 complete sets later I learned the following .... Early C-3's are a Bi*** to bleed. Mine did exactly what your has done and it turned out to be air in the rear lines. It expands with heat and contracts when it cools. The expansion causes the calipers to close and walla drag. They are very difficult to bleed even with a bleeder. Chances are that is your problem. I discovered it the hard way when on a hot day the right rear completely froze while driving at speed ... tried to limp it home and it caught fire. No damage beyond all new gear .. rotor, bearings etc, etc.
Second lesson. After chasing the rebuild for 2 years I discovered (from Vette) magazine the runout solution. After fighting with my mechanic, he finally did what I asked and set the runout, lo ... no more problems. Till this year ... I live in Seattle .. very moist. I don't drive the car in the winter, it's stored in a garage (sorta heated). Seems the fluid is extremely suseptible to absorbing moisture and the moisture eats the seals on most rebuilds. Sooo I've purchased a set of new calipers from Mid America and they go on the car next week. Better work!
Sorry for the length. Hope it helps.
Second lesson. After chasing the rebuild for 2 years I discovered (from Vette) magazine the runout solution. After fighting with my mechanic, he finally did what I asked and set the runout, lo ... no more problems. Till this year ... I live in Seattle .. very moist. I don't drive the car in the winter, it's stored in a garage (sorta heated). Seems the fluid is extremely suseptible to absorbing moisture and the moisture eats the seals on most rebuilds. Sooo I've purchased a set of new calipers from Mid America and they go on the car next week. Better work!
Sorry for the length. Hope it helps.
Thread Starter
Drifting
Joined: Jun 2000
Posts: 1,476
Likes: 1
From: Mt Juliet TN
Re: OK brake problem has me stumped (wcsinx)
Theres so much stuff under my dash I couldn't see anything. I did feel around and it looked (OK felt like) everything lined up. I did find the rod between the master cylinder and power booster. With a little effort I was able to shorten it. I took the car for a short ride (had to mow the lawn) Theres too much play so I'll have to adjust it again but the brakes didn't lock up at any time. I'll know more after driving around this wekeend. I just hope I haven't warped my brand new rotors. :cry Thanks for all teh help. I would never have guessed it was brake pedal adjustment.
Drifting
Joined: Aug 2003
Posts: 1,327
Likes: 16
From: Fl
Re: OK brake problem has me stumped (TTop Tony)
If you hav the emergency brake over adjusted this will also make the car impossible to push backwards but will move somewhat OK going forward.
Try loosening the emergency brake adjusting star ... bet it will help some ...
Bill
Try loosening the emergency brake adjusting star ... bet it will help some ...
Bill
