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Old 04-12-2010, 10:55 PM   #1
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Join Date: Jun 2004
Location: Chicago south suburbs
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Car: 1988 IROC-Z28
Engine: L98(383tpi) modified
Transmission: 700R4 rebuilt
Axle/Gears: 3:73 10bolt rebuilt

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What if you don't bench bleed?

In redoing/modifying my brakes I forgot to bench bleed, this was of course after I removed the master cylinder and prop valve. I have been trying to bleed them now for almost a full day. I'm just starting to get a little pedal. So I'm assuming I can get bleed the brakes without bench bleeding. If so anyone have a estimate on how long it will take.
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Old 04-13-2010, 07:46 AM   #2
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Join Date: Aug 1999
Location: Lawrence, KS
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Car: Met. Silver 85 IROC
Engine: 350 HO Deluxe (350ci/330hp)
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Re: What if you don't bench bleed?

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Originally Posted by Americanmouse View Post
In redoing/modifying my brakes I forgot to bench bleed, this was of course after I removed the master cylinder and prop valve. I have been trying to bleed them now for almost a full day. I'm just starting to get a little pedal. So I'm assuming I can get bleed the brakes without bench bleeding. If so anyone have a estimate on how long it will take.
Because of the angle at which the master sits (and air rises), your chances of a successful bleed is probably non-existent. Some members have tried lifting the rear end in order to level the master.

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Old 04-13-2010, 02:40 PM   #3
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Re: What if you don't bench bleed?

i dont have the paper handy, but there is a way to bleed the master with it on the car. You have to make lines that go from the 2 outlet ports and loop up and back into the master reservoir, below fluid level. Then pump away untill the bubbles stop. Not sure if there is something else involved, i just remember this method, or something similar, from the instruction sheet that came with a new master i bought.

or like james mentioned, you can try to raise the rear of the car to level the master.
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Old 04-13-2010, 03:33 PM   #4
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Join Date: Aug 1999
Location: Lawrence, KS
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Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's

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Re: What if you don't bench bleed?

Quote:
Originally Posted by //<86TA>\\ View Post
i dont have the paper handy, but there is a way to bleed the master with it on the car. You have to make lines that go from the 2 outlet ports and loop up and back into the master reservoir, below fluid level. Then pump away untill the bubbles stop. Not sure if there is something else involved, i just remember this method, or something similar, from the instruction sheet that came with a new master i bought.
Light bulb. The above may be available as a kit. Still, I'd think the master would have to be level. Here's the idea:

http://www.superchevy.com/technical/...nch/index.html

Maybe a power bleeder.

http://www.jegs.com/i/Motive-Product...0105/10002/-1#

The application guide lists thirdgens to 91 (why not 92?)

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Last edited by JamesC; 04-13-2010 at 04:17 PM.
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Old 04-13-2010, 05:23 PM   #5
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Location: Chicago south suburbs
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Car: 1988 IROC-Z28
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Classifieds Rating: (7)

Re: What if you don't bench bleed?

Thanks guys for the info!
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Old 04-13-2010, 05:23 PM
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