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Dragging brakes

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Old Dec 28, 2008 | 03:04 PM
  #1  
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Default Dragging brakes

Hello from Spain

I own a '75. I changed brake calipers (vbp) and installed hawk brake pads and metallic hoses.

Now the four wheels are dragging and pushing the car is very dificult. It seems the brake circuit has always pressure.

What should the problem be? I bled the circuit three times.

Thank you
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Old Dec 28, 2008 | 04:30 PM
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Are you sure it's all four that are seazing?
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Old Dec 28, 2008 | 04:40 PM
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Did you have the master cylinder off ? I have seen this issue if the push rod between the master cylinder and the booster is too long.
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Old Dec 28, 2008 | 10:51 PM
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If you have the stock rubber lines on the front & havent replaced them lately that could be your problem
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Old Dec 28, 2008 | 11:55 PM
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Try to determine which wheels are dragging. If all four, or two on the same axle, your master cylinder is probably bad -it's not letting brake fluid return to the reservior. You can test for this by removing the effected wheels and opening the bleeder fitting. There will probably be pressure in the system, and brake fluid will squirt out, so put a tube on it and direct it into a container to keep from getting brake fluid all over the place.

As Aktbird said, the push rod could be keeping the m/c piston from completely returning. But unless the pushrod was incorrectly adjusted by some Bubba, it is probably ok, and it is the m/c itself.
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Old Dec 29, 2008 | 06:51 AM
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Thank you

I will check the mc and the push rod as you said.
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Old Dec 29, 2008 | 12:57 PM
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I just had an issue with the front brakes locking up . It turned out that the fron MC was so Gunked up it wouldn't let the brakes go. The ruibber gasket somehow deteriorated. I had to get a new MC problem was solved $65.00.
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