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Canīt get brake pressure PLEASE HELP

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Old 04-21-2002, 08:09 AM
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chrisvette79
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Default Canīt get brake pressure PLEASE HELP

Hi everybody, thanks for checking in. I own a 79 model. I did an off frame restoration with new calipers and new brakelines. The system is nowhere leaking and the Booster inside is dry but I still canīt get a good pressure on the brake pedal. SOMEBODY KNOW WHERE THE PROBLEM IS.
I live in Germany and Corvettes here are super rare, so there is nobody who can give me advise. So please.................. :smash:
Old 04-21-2002, 08:14 AM
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razz1980
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Default Re: Canīt get brake pressure PLEASE HELP (chrisvette79)

have u tried rebleeding them to make sure all the air bubbles are out ? if not that is the first step and we can try help u from there after that is done..lol
Old 04-21-2002, 11:13 AM
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Scott78
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Default Re: Canīt get brake pressure PLEASE HELP (razz1980)

I'd start by gravity bleeding(master cylinder cover off bleeders cracked till flow) then the old 2-man bleeding ritual. If you can't get any pressure on the pedal then, I'd suspect the master cylinder. Hope that helps keep us informed
and Welcome to the forum :cheers:
Scott
Old 04-21-2002, 01:58 PM
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chrisvette79
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Default Re: Canīt get brake pressure PLEASE HELP (razz1980)

Iīll give it a try thanks!!! By the way nice car and nice wife.....even itīs expensive .......you are a lucky man (youre vette runs!!!!!) :cheers:
Old 04-21-2002, 02:00 PM
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chrisvette79
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Default Re: Canīt get brake pressure PLEASE HELP (Scott78)

Thanks for the info iīll give it a try.
Chris :cheers:
Old 04-21-2002, 02:23 PM
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Pete79L82
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Default Re: Canīt get brake pressure PLEASE HELP (chrisvette79)

Just so you are sure you are doing it correctly you must bleed them in the following order.

Left rear caliper - inner, then outer
Right rear caliper - inner , then outer
Left front caliper
Right front caliper

If it is not done in that order you will not got all out all the air trapped in the lines.
Old 04-21-2002, 02:32 PM
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chrisvette79
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Default Re: Canīt get brake pressure PLEASE HELP (Pete79L82)

Thanks, again!!!
With the question of the other guy with the underhood light. I forgot the I ripped the complete alarm system out of the car!!!! And where the mercury switch sat I put my underhood switch:::::::: :jester
Old 04-21-2002, 02:34 PM
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Steve Straus
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Default Re: Canīt get brake pressure PLEASE HELP (Pete79L82)

Just so you are sure you are doing it correctly you must bleed them in the following order.

Left rear caliper - inner, then outer
Right rear caliper - inner , then outer
Left front caliper
Right front caliper

If it is not done in that order you will not got all out all the air trapped in the lines.
I'd never heard that before, what is the technical reasoning behind that method?

Another trick for bleeding that I've found works well is using a vacuum pump to bleed the brakes. Just make sure you keep an Eye on the fluid level in the master cylinder and buy a bunch of extra brake fluid.
Old 04-21-2002, 03:55 PM
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Golden80
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Default Re: Canīt get brake pressure PLEASE HELP (Pete79L82)

Just so you are sure you are doing it correctly you must bleed them in the following order.

Left rear caliper - inner, then outer
Right rear caliper - inner , then outer
Left front caliper
Right front caliper

If it is not done in that order you will not got all out all the air trapped in the lines.
I thought it was:

Passenger Rear, inner then outer
Driver Rear, inner then outer
Passenger Front
Driver Front

Matt
Old 04-21-2002, 04:41 PM
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Pete79L82
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Default Re: Canīt get brake pressure PLEASE HELP (Golden80)

I thought it was:

Passenger Rear, inner then outer
Driver Rear, inner then outer
Passenger Front
Driver Front

Matt
Here is a scan from the GM shop manual.




[Modified by Pete79L82, 2:42 PM 4/21/2002]
Old 04-21-2002, 04:53 PM
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PrarieShark
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Default Re: Canīt get brake pressure PLEASE HELP (Pete79L82)

I thought it was:

Passenger Rear, inner then outer
Driver Rear, inner then outer
Passenger Front
Driver Front

Matt

Here is a scan from the GM shop manual.




[Modified by Pete79L82, 2:42 PM 4/21/2002]
In truth it is when they give directions like this it is from the front of the car not the drivers seat . So the left is actualy the passinger rear and if you follow the break lines the passinger rear line is the longest one.
Old 04-21-2002, 06:54 PM
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chrisvette79
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Default Re: Canīt get brake pressure PLEASE HELP (Pete79L82)

Thanks for the scan Matt!!!! :cheers:

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