Problem with my new brake setup - Team Camaro Tech
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post #1 of 32 (permalink) Old Oct 25th, 09, 12:21 PM Thread Starter
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Craig
 
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Problem with my new brake setup

I have all drums and I just put on a new reman master with an 11" chrome booster to make the drums more useable. I used fuel line hose and connected the booster to a vacuum on the carb with a couple 90 elbows to make it clean looking. I went out yesterday and bled each corner. Started the car and no brakes at all. Took the cover off the master cylinder and when the brake pedal releases bubbles come out of the rear section of the master. Did I do something wrong or does this just mean there is still air in the lines somewhere? Also if there was air somewhere would the brakes not work at all?

1968 454 TH350 Red with Black vinyl top
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post #2 of 32 (permalink) Old Oct 25th, 09, 12:34 PM
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Re: Problem with my new brake setup

Did you bench bleed the master?
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post #3 of 32 (permalink) Old Oct 25th, 09, 01:46 PM
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Re: Problem with my new brake setup

Still air in lines.

Always bench bleed a master cylinder before install.
Bleed entire system (or reverse pressure bleed with the proper tool)

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
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post #4 of 32 (permalink) Old Oct 25th, 09, 02:47 PM Thread Starter
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Re: Problem with my new brake setup

I bled the master cylinder while it was mounted in the car. Will that work? Do I just need to continue bleeding at the wheels?

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post #5 of 32 (permalink) Old Oct 25th, 09, 03:32 PM
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Re: Problem with my new brake setup

Re-bleed the system.

68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
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post #6 of 32 (permalink) Old Oct 27th, 09, 03:00 PM Thread Starter
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Craig
 
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Re: Problem with my new brake setup

I took the master out today and bench bled it until no bubbles were there. Im going to call auto zone and see if they have a bleeding vacuum tool. And then Ill rebleed the brake lines.

1968 454 TH350 Red with Black vinyl top
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post #7 of 32 (permalink) Old Oct 28th, 09, 05:16 AM
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Re: Problem with my new brake setup

I wouldn't bother

http://www.speedbleeder.com/

Best invention ever inveted!!!

I changed my masted and brake configuration 4 times ( don't ask why ) and every time my brakes were completly bled. Call him up and he will get you the correct sizes.

1968 Camaro Convertible ,350 TWIN TURBO , PTC 3000 stall, Hotchkis TVS kit / Subframe connectors, Caltracs, 9" rear, Street Star wheels (P275/40ZR17 / P235/45/17) , Electric cutouts. [B] .....FOR SALE.....
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post #8 of 32 (permalink) Old Oct 28th, 09, 01:41 PM
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Re: Problem with my new brake setup

Can go past the old
open bleeder, pedal down, hold, close bleeder, pedal up, open bleeder, pedal down hold, close bleeder and so on
Start at the wheel fatherest from the MC

My Spelling is not incorrect...it is creative

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post #9 of 32 (permalink) Old Oct 28th, 09, 02:06 PM Thread Starter
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Craig
 
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Re: Problem with my new brake setup

Yeah I just use the old fashioned method of pumping and screwing

1968 454 TH350 Red with Black vinyl top
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post #10 of 32 (permalink) Old Oct 29th, 09, 03:59 PM Thread Starter
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Craig
 
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Re: Problem with my new brake setup

I rebled the master, and the lines today. Tried the brakes in neutral with the car off and it would not stop the car from me pushing it. Im at a loss here what else could be wrong that the brakes wont work at all?

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post #11 of 32 (permalink) Old Oct 29th, 09, 04:26 PM
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Re: Problem with my new brake setup

You said this was a new booster--did the car have a booster before?

If not, did you get an extension for the (or a new) pushrod (into the booster)?

Keith
1967 Camaro
406, 10:1, comp xr282HR, Dart Iron Eagle 200cc, Holley Contender dual plane, Holley 750 DP
Muncie M-20
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post #12 of 32 (permalink) Old Oct 29th, 09, 04:44 PM Thread Starter
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Re: Problem with my new brake setup

The car did not have a booster. This new booster came with a pushrod attached to it that I attached to the lower hole in my brake pedal arm.

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post #13 of 32 (permalink) Old Oct 29th, 09, 04:51 PM
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Re: Problem with my new brake setup

sounds liek you are getting pressure to bleed the system, so it is odd that it is not applying pressure to the brakes themselves...

I assume that your foot is just going all the way to the floor, and not stopping the car?
Maybe try the upper hole in the brake pedal?
When was the last time you adjsuted the brakes themselves?
Are the brake cylinders leaking?

I'm just throwing out ideas here...

Keith
1967 Camaro
406, 10:1, comp xr282HR, Dart Iron Eagle 200cc, Holley Contender dual plane, Holley 750 DP
Muncie M-20
GM 8.5, 3.73 posi
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post #14 of 32 (permalink) Old Oct 29th, 09, 04:59 PM Thread Starter
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Craig
 
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Re: Problem with my new brake setup

Yes Im getting pressure because I was able to bleed the brakes and watch some bubbles flow back and forth. The cylinders do not appear to be leaking anywhere. Yes the pedal has resistance to it and goes all the way to the floor like it should. I have not adjusted the brakes. Last time I drove it the brakes worked but the pedal was like pushing a brick wall because they were manual no booster. What would using the upper hole change?

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post #15 of 32 (permalink) Old Oct 29th, 09, 05:15 PM
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Re: Problem with my new brake setup

might lengthen the stroke of the pushrod just enough to give you a little "extra length into the booster/master cylinder...If you are testing the brakes with the car off, they are not getting any vacuum assist, which is why you may need just a little bit more stroke/length to apply the "manual" pressure needed to stop the car...

I'm just hypothesizing here, but my suspicion is that you do not have enough "stroke" on the pushrod...

Keith
1967 Camaro
406, 10:1, comp xr282HR, Dart Iron Eagle 200cc, Holley Contender dual plane, Holley 750 DP
Muncie M-20
GM 8.5, 3.73 posi
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