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Pulls to the left when braking

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Old Sep 2, 2011 | 06:45 PM
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Default Pulls to the left when braking

Rebuilt calipers a few months ago. pulls to the left when braking.Not really too noticeable except when you take your hands off the wheels.
What can be the cause(s) of this.
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Old Sep 2, 2011 | 07:23 PM
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Generally that means the left is working good and the right is not,if its a brake issue.
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Old Sep 2, 2011 | 07:24 PM
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Did you replace the rubber lines? I agree with Roger, it's the opposite side that's the issue.

Ed
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Old Sep 2, 2011 | 07:41 PM
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I had the same issue with my 82. The PO replaced the left caliper and not the right. I believe in replacing them in pairs. It keeps everything on an even keel.
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Old Sep 2, 2011 | 08:09 PM
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Originally Posted by restoman1
Did you replace the rubber lines? I agree with Roger, it's the opposite side that's the issue.

Ed
Thanks, Yes the lines were replaced. Can the proportional valve have an effect?
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Old Sep 2, 2011 | 08:24 PM
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The proportioning valve will only affect front to rear, not side to side.
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Old Sep 2, 2011 | 09:00 PM
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clean the rotors. you may have brake fluid on them from bleeding, especially if you used dot 4 or 5 fluid(silicone).
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Old Sep 3, 2011 | 01:01 PM
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Also check rotor thickness. If one is thicker than the other, this could cause it to pull slightly. Did you replace both rotors as well? Who rebuilt your calipers. I got a set many years ago where one of the pistons wasn't traveling (for lack of a better word) "smoothly" in the bore, and that was causing issues.

Ed
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Old Sep 3, 2011 | 02:15 PM
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Originally Posted by restoman1
Also check rotor thickness. If one is thicker than the other, this could cause it to pull slightly. Did you replace both rotors as well? Who rebuilt your calipers. I got a set many years ago where one of the pistons wasn't traveling (for lack of a better word) "smoothly" in the bore, and that was causing issues.

Ed
All rebuilt calipers were from VBP but rotors were not touched.
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Old Sep 3, 2011 | 04:01 PM
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check fluid flow thru ur front right flex hose. Pull the hose off, blow thru it with compressed air. Same happened to me once, the flex line had broken down rubber inside restricting the flow. If found, replace with new lines (4) for all corners .
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Old Sep 3, 2011 | 04:13 PM
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I had this same sympyom a few months back. Turned out to be air in the system. Very little air, but enough just to make it subtle notice.
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Old Sep 3, 2011 | 05:04 PM
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Originally Posted by mikejpss
check fluid flow thru ur front right flex hose. Pull the hose off, blow thru it with compressed air. Same happened to me once, the flex line had broken down rubber inside restricting the flow. If found, replace with new lines (4) for all corners .
This happen to me years ago on another "old" car.
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