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Old 04-16-2012, 06:44 PM
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Rear Brakes are not working at all

I am driving a 1956 Chevy PU, 75 Camaro front clip, 10 bolt posi rear from Nova. Disc front brakes, rear drum. Dual master cylinder with aftermarket vac booster. Front brakes work well, rears have little to no stopping power. I adjusted rear shoes and bled wheel cylinders, fluid comes out. Rear wheels will not even stop on jackstands. When I push the brake pedal the fluid comes out of the master cylinder ?? Possible bad MC or proportioning valve ? I'm at a loss at this point.
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Old 04-16-2012, 06:50 PM
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What are you using for a proportioning valve?

I have basically the same setup....I used the valve from the donor car that I got the clip from (76 Nova)....never had a problem with it
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Old 04-16-2012, 07:21 PM
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I am using the after market brass one that goes on the side of the MC. It came with the MC , brake booster setup.
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Old 04-16-2012, 08:26 PM
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Are the rear cylinders old or been sitting awhile ? They may be stuck and need new ones
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Old 04-16-2012, 08:49 PM
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Wheel cylinders are only about a year and a half old. Guess I will have to have someone push the pedal gently while I watch the cylinder. Trying to figure why the fluid squirts out of the MC when the lid is off and pedal depressed ?
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Old 04-17-2012, 12:39 AM
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Quote:
Originally Posted by lwin517
Wheel cylinders are only about a year and a half old. Guess I will have to have someone push the pedal gently while I watch the cylinder. Trying to figure why the fluid squirts out of the MC when the lid is off and pedal depressed ?
Does it actually "squirt" out or just bubble up?
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Old 04-17-2012, 05:49 AM
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It will actually squirt up if I push the pedal quickly.
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Old 04-17-2012, 02:46 PM
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Quote:
Originally Posted by lwin517
It will actually squirt up if I push the pedal quickly.
That is pretty normal. I think your wheel cylinders are probably stuck.
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Old 04-17-2012, 04:05 PM
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Thanks, I will check this evening.
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