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#1 |
Building Dreams out of Dimes!
Join Date: May 2005
Location: Bonham, Tx
Posts: 892
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Good grief how long does it take to bleed a brake system?
I converted my rear brakes from drum to disks. I tried for a good hour with the wife pushing the brake pedal and didn't get a drop out of the rear brake lines yet. Perhaps it takes longer than I expected....?
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1981 Chevy short/wide. SB400 350th |
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#2 |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,284
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Re: Good grief how long does it take to bleed a brake system?
We were just having this discussion here:
http://67-72chevytrucks.com/vboard/s...02#post6017202 Similar issue, perhaps? K
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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#3 |
Registered User
Join Date: Feb 2012
Location: Big Valley. Alberta
Posts: 674
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Re: Good grief how long does it take to bleed a brake system?
It's possible the proportionating valve has slid over & not allowing fluid to rear.I just went thru similar thing on my 82 K25 when I replaced wheel cylinder.You need to bleed the front right hand side first to get the valve to slid over,then you should get fluid to rear.Unless it's like mine was,ended up replacing master cylinder as well.
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1977 Chev C30 454/465/14ff DRW 1974 Chev C20.350/465/14ff " Rock n Roll ain't noise pollution" ![]() |
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#4 |
Building Dreams out of Dimes!
Join Date: May 2005
Location: Bonham, Tx
Posts: 892
|
Re: Good grief how long does it take to bleed a brake system?
I have an adjustable Willwood proportioning valve so that shouldn't be the issue. I wonder if my master cylinder is bad....?
I expected to see the fluid level in my master cylinder to drop a little more rapidly. However, it seems to be dropping very very slow, if any....
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1981 Chevy short/wide. SB400 350th |
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#5 |
Registered User
Join Date: Feb 2012
Location: Big Valley. Alberta
Posts: 674
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Re: Good grief how long does it take to bleed a brake system?
I was getting a small amount of fluid at rear axle,but very little pressure.Swapped m/c out off a parts truck & all kinds of pressure now.That might be your trouble too...My fluid level in old m/c didn't drop much either..
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1977 Chev C30 454/465/14ff DRW 1974 Chev C20.350/465/14ff " Rock n Roll ain't noise pollution" ![]() |
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