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03-17-2011, 08:42 PM
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#1 |
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Registered User
Join Date: Jul 2010
Location: Winston, Ga.
Posts: 42
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Brake System Troubles
Ok here goes- I have a 66 with a 350 engine. I have been completely redoing the truck from frame off...... I have new brake lines from front to rear.... Disc on the Front... Drum on the back... a new master/booster combo from Tuff- stuff.... I have completely redone the rear drums all new stuff... as well as the fronts... I used the old calipers though because they are in really great condition. Here is the problem... after completely bleeding the system, I have a great hard brake pedal until I crank the engine, then the pedal goes right to the floor........ I have re-blead the system and checked all the line connections...
???? anyone have any answers as to how to fix this ???? Thanks, Keith |
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03-17-2011, 09:06 PM
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#2 |
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Just here to tinker
 
Join Date: Jun 2008
Location: Holland, MI
Posts: 3,697
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Re: Brake System Troubles
Are you getting a good straight stream out of each bleed valve? Did you top off the reservoir?
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03-17-2011, 09:29 PM
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#3 |
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Registered User
Join Date: Jul 2010
Location: Winston, Ga.
Posts: 42
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Re: Brake System Troubles
Yes, I'm getting a pretty good stream out of each bleeder valve. and I did make sure and top off the reservoir.
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03-17-2011, 11:48 PM
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#4 |
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Resistance is Futile
Join Date: Dec 2006
Location: Mesa,Arizona
Posts: 3,520
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Re: Brake System Troubles
Are the rear drum shoes adjusted out for a friction fit when installing the drum??
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03-18-2011, 05:29 PM
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#5 |
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Registered User
Join Date: Jul 2010
Location: Winston, Ga.
Posts: 42
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Re: Brake System Troubles
I checked them and the are rubbing the pads when I turn them. I have also spoken with another guy, and he said to check the vacuum when the motor is at 2500 RPM. I did and still no luck. .... I bleed the line into a bottle of fluid bubbles come out I shut it down when the bubbles disappear. I do this on all 4 wheels. I have a really hard pedal, I start it up and the pedal goes right to the floor. I start over bleeding and bubbles come out.....I've done this process about 6-8 times.... UUUGGGGHHHH!!!!!!!
Can you say frustration!!! Keith |
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03-18-2011, 07:06 PM
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#6 |
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1965 Chevy C10, 2005 4.8L/4l60
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
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Re: Brake System Troubles
bad booster?
Do you have good vacumn on your hose to the booster?
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