Author Topic: bad brakes  (Read 4023 times)

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Offline MADLT1

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bad brakes
« on: January 31, 2017, 12:20:09 PM »
hi guys I ihave really bad brakes on my 71 at the moment and they used to be unreal,i have replaced the pads,bled the brakes a couple of times now and they are still spungy and not very responsive,do I need to resleeve the calipers ?how do I evan know if they need resleeving,i was quoted $390 per caliper,so I want to be sure first,cheers

Offline MY081

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Re: bad brakes
« Reply #1 on: January 31, 2017, 01:41:43 PM »
Im an ex Bricky but for what it's worth I have heard of the rubber brake hoses near to the caliper sucking in when you apply the brakes ,If they are old this could be your problem . Ray

Offline MADLT1

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Re: bad brakes
« Reply #2 on: January 31, 2017, 03:27:12 PM »
no I replaced them years ago with the braided metal lines

Offline sabre

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Re: bad brakes
« Reply #3 on: January 31, 2017, 07:18:41 PM »
Re sleeved calipers would only be required if you have fluid leaking around the calipers. $390 per caliper is a bit expensive. You should be able to get an exchange set of 4 with pads for around $1200. I recently got SS sleeved set for $1000 on ebay.
I would be suspicious of the master cylinder. Reconditioning by a reputable brake place should set you back around $200.

Offline Bfit

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Re: bad brakes
« Reply #4 on: January 31, 2017, 08:39:41 PM »
With out seeing how you bleed the brakes I  first would  research the method of bleeding the  brakes  correctly.
First you need to bleed the master cylinder. Before anything down stream
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Offline sirfixalot

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Re: bad brakes
« Reply #5 on: January 31, 2017, 10:14:49 PM »
Were they spongy before replacing pads? Have  you tried clamping off all the flexible hoses to see if pedal improves, release individually to  locate  a  bad caliper,have you tried bleeding brakes & taping caliper with a rubber mallet to dislodge air in caliper galleries. Perhaps a bent pad pushing back pistons. Do the new pads sit up to disc. IE have discs got a lip on outer & inner edges of braking surface holding pads off

Offline 77CVT

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Re: bad brakes
« Reply #6 on: February 01, 2017, 09:18:29 AM »
 :agree:

Offline MADLT1

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Re: bad brakes
« Reply #7 on: February 01, 2017, 01:20:43 PM »
good feedback guys,yes it has a booster and yes I will get back under the car this weekend and try to solve this problem cheers

Offline Ausrs

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Re: bad brakes
« Reply #8 on: February 13, 2017, 08:49:18 PM »
found a vacuum bleeder to be one of the best tools available to bleed the brakes on a C3 corvette,it makes life so much easier and takes about 10 minutes all up

http://www.ebay.com.au/itm/FPK-TOOLS-Brake-Bleeder-Kit-Vacuum-Pressure-Tester-Pump-Hand-Held-/291152875341?hash=item43ca104f4d:g:lKkAAOSw8-tWZgYw

Offline sirfixalot

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Re: bad brakes
« Reply #9 on: February 13, 2017, 09:38:43 PM »
So what was the problem?

Offline MADLT1

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Re: bad brakes
« Reply #10 on: February 14, 2017, 11:51:48 AM »
I have not touched it yet been to hot lol

Offline Bfit

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Re: bad brakes
« Reply #11 on: February 14, 2017, 02:15:42 PM »
The vacuum pump idea works well, as long as there are no leaking calliper seals .
 you can spend a lot of time pulling air out of the system only to find it coming through a seal.
A pressure feed system is far the better system
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