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Old 06-06-2006, 09:15 PM   #1
shelby987
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stupid brake ??????

OK, I am upgrading to disc brakes, my master cylinder, and replacing my prop. valve to accomodate my new front disc. brakes. Do I need to bench bleed the MC, or can I get away with just bleeding the total system starting from the right rear to the left front to work all of the air out?
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1969 SS 350 Camaro Sold 2008
1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's
1980 Chevy Malibu 2 dr Sold 2007
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Old 06-06-2006, 09:19 PM   #2
truckdude239
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Re: stupid brake ??????

what i do is install the mastercylider on the truck and bleed it on the truck by its self then hook the lines up and bleed the whole system
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Old 06-06-2006, 09:55 PM   #3
shelby987
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Re: stupid brake ??????

how do you bleed it by itself?
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1969 SS 350 Camaro Sold 2008
1970 3/4T K20, stock height with 33's, 250 I6, 3 on the tree, and locked front and rear 4.10's
1980 Chevy Malibu 2 dr Sold 2007
1993 Olds. Cutlass Ciera Wagon Traded 2006
2003 Saturn L200 w/5pd. D/D
My list spans 5 decades with One common thread.....GM!
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Old 06-06-2006, 10:17 PM   #4
Longhorn Man
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Re: stupid brake ??????

We rebuild P/30 trucks at work, have been for almost 3 years. One a week. We NEVER bench bleed the master cylinder. Get it all together, fill it up, and open the bleeders. The fronts will start to dribble in a matter of minuits, the rear, can take a while. But, if nothing comes out after an he (while you are finishing up other stuff) then we start doing the old pump and bleed.
The sequence you listed, is not really important anymore. That is left over from decades ago... before our trucks were built, when the master cylinder had one resivour. With the daul resuvour, it doesn't matter. Remember, it is like having 2 seperate brake systems... so it really doesn't matter which you do first. and as far as the left/right thing... one line goes clear back to the rear diff... it really doesn't matter which way it goes first...leftmmm right... doesn't matter. Same for the front.
Bolt it up
fill it up
crack the bleeders
clean up your mess
close the fronts
go eat lunch
close the rears
pump up system and bleed all 4.
Tail lights and tire smoke.
(install wheels before the tail lights and tire smoke thing)
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