Pulling to the Left Under Breaking
Thread Starter
Le Mans Master
Joined: Apr 2002
Posts: 5,537
Likes: 280
From: Egg Harbor Township NJ
2015 C2 of Year
St. Jude Donor '04-'05-'06-'07-'08-'09-'10, '14-'15
Pulling to the Left Under Breaking
I installed a complete breake kit which included Cailipers, Pads, Steel Lines, Hoses front and rear and brand new rotors. System was flushed and filled with silicone fluid. The break pedal is high and hard. The car seems to break evenly under moderate to medium pedal pressure and does not pull to either side. However, under hard pedal pressure as in a fast stop the car pull's or dives to the left as if the right cailiper is not putting out the correct amount of force as compared to the left.
I have tapped on the caliper with a plastic hammer and reblead the cailiper
but this problem still remains. There is no air in the system, the fluid is solid with no air. I spoke with the suppiler and he doesn't think there is any thing wrong with the right front cailiper but is sending me another one to try.
What else do you think could be causing this problem. Did I over look something?? The 65 uses a single master cyl and the old breaks did not act this way.....
I have tapped on the caliper with a plastic hammer and reblead the cailiper
but this problem still remains. There is no air in the system, the fluid is solid with no air. I spoke with the suppiler and he doesn't think there is any thing wrong with the right front cailiper but is sending me another one to try.
What else do you think could be causing this problem. Did I over look something?? The 65 uses a single master cyl and the old breaks did not act this way.....
Melting Slicks
Joined: Oct 2001
Posts: 2,740
Likes: 4
From: Marblehead MA
Re: Pulling to the Left Under Breaking (Viet Nam Vett)
Hey Mark,
I had a similar problem when I had my 65. It would pull to the left as well, turned out to be a defective hose going to the caliper. For some reason it wasn't crimped right where the rubber met the metal and somehow resulted in restricting the flow of the brake fluid. Worth a check.... :smash:
I had a similar problem when I had my 65. It would pull to the left as well, turned out to be a defective hose going to the caliper. For some reason it wasn't crimped right where the rubber met the metal and somehow resulted in restricting the flow of the brake fluid. Worth a check.... :smash:
Burning Brakes
Joined: Jan 2002
Posts: 1,206
Likes: 62
From: Redondo Beach CA
C2 of Year Finalist (performance mods) 2019
Re: Pulling to the Left Under Braking (Viet Nam Vett)
It could be a sticky cylinder in the caliper, or you messed up a line when doing the swap. It is also possible that there is a trapped bubble in the caliper, but I would expect that to show poor performance everywhere, not just on hard braking. If you want to play with it in the meantime, you could drive it to see if that shakes looks any bubbles and then try a pressure bleed or a gravity bleed.
I would put my money on the caliper, though.
I would put my money on the caliper, though.
Racer
Joined: Feb 2002
Posts: 343
Likes: 1
From: Granger IN
Re: Pulling to the Left Under Breaking (Viet Nam Vett)
I just have a question regarding the installation of new rotors.
It was my understanding that, to minimze run-out, the caliper and spindle were machined as a unit. Did you do that when you installed the new rotors.? Or did the run-out fall within OEM specs without any problem.?
Just curious because I am going to do much front and rear suspension work this fall and I am considering replacing the rotors.
Thanks
Ryan
It was my understanding that, to minimze run-out, the caliper and spindle were machined as a unit. Did you do that when you installed the new rotors.? Or did the run-out fall within OEM specs without any problem.?
Just curious because I am going to do much front and rear suspension work this fall and I am considering replacing the rotors.
Thanks
Ryan
Burning Brakes
Joined: Jan 2002
Posts: 1,206
Likes: 62
From: Redondo Beach CA
C2 of Year Finalist (performance mods) 2019
Re: Pulling to the Left Under Breaking (Ryanc65)
There are two articles with lots of information on C2/C3 brakes by Hib Halverson from the Big Block from Hell series here:
http://www.idavette.net/hib/BBfHInet12.htm
http://www.idavette.net/hib/BBfHInet13.htm
He says "Run out of rear brake rotors can not be measured accurately with the rotors on the car because the effects of rear wheel bearing clearance cannot be eliminated. Rear rotors must be removed and chucked into a brake lathe." So I would expect that you could not machine them on the car.
http://www.idavette.net/hib/BBfHInet12.htm
http://www.idavette.net/hib/BBfHInet13.htm
He says "Run out of rear brake rotors can not be measured accurately with the rotors on the car because the effects of rear wheel bearing clearance cannot be eliminated. Rear rotors must be removed and chucked into a brake lathe." So I would expect that you could not machine them on the car.
Thread Starter
Le Mans Master
Joined: Apr 2002
Posts: 5,537
Likes: 280
From: Egg Harbor Township NJ
2015 C2 of Year
St. Jude Donor '04-'05-'06-'07-'08-'09-'10, '14-'15
Re: Pulling to the Left Under Breaking (Ryanc65)
Heh Ryan,
These are brand new Hawk's Racing rotors the same ones that Vett Breaks sells. Except I don't know if they have been frozen and heated like the VB's.
I do know that VB buys them from hawks because I did speake with VB and they confirmed that. As far as run out is conncerened, I am aware of the situation of run out. I did not measure run out witha a dial indicator. The rotors seem to track smoothly and I could not see any wobble. Of course my eyes are not like a dial caliber and it is possible that there might be some but everything seemed smooth. It is the preferred way of doing it.
But then again not every body does it.
If you hunt around there have been quite a bit of post's on this topic. Or simply post the question. We have some of the best minds on this forum that will give you the best info you can get anywhere.
Thanks for your reply............
These are brand new Hawk's Racing rotors the same ones that Vett Breaks sells. Except I don't know if they have been frozen and heated like the VB's.
I do know that VB buys them from hawks because I did speake with VB and they confirmed that. As far as run out is conncerened, I am aware of the situation of run out. I did not measure run out witha a dial indicator. The rotors seem to track smoothly and I could not see any wobble. Of course my eyes are not like a dial caliber and it is possible that there might be some but everything seemed smooth. It is the preferred way of doing it.
But then again not every body does it.
If you hunt around there have been quite a bit of post's on this topic. Or simply post the question. We have some of the best minds on this forum that will give you the best info you can get anywhere.
Thanks for your reply............
Thread Starter
Le Mans Master
Joined: Apr 2002
Posts: 5,537
Likes: 280
From: Egg Harbor Township NJ
2015 C2 of Year
St. Jude Donor '04-'05-'06-'07-'08-'09-'10, '14-'15
Re: Pulling to the Left Under Braking (bcwaller)
Heh Brad,
Thanks for the reply,... Yep.. My monies on the Cailiper Too.
Thanks for the reply,... Yep.. My monies on the Cailiper Too.
