|
12-13-2010, 05:45 PM
|
#1 |
|
Registered User
Join Date: Jun 2009
Location: Arlington Texas
Posts: 602
|
Brake question???
70 GMC drum brakes non powered.
I have replaced in the last year: Master cylinder All 4 wheel cylinders All new rubber hoses Now question is: The other day I was driving and the pedal went to the floor. I let off and pumped it once and it was back to normal. Now occasssionally it will do it but not regularly. No leaks anywhere. Reblead the system. adjusted the adjusters to make sure they were where they were suppose to be. Brake pads are good. looked inside the brakes to make sure the wheel cylinders are not leaking. What could be causing this? Bad master cylinder possibly?
__________________
1970 GMC truck  1988 Harley 1200 Sportster 
|
|
|
|
12-13-2010, 06:21 PM
|
#2 |
|
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,229
|
Re: Brake question???
Make sure the brakes are adjusted good & all the mechanical parts are good . Sometimes a rod from the wheel cyl. does not get put in the slot on the shoe. If all that is good you have a bad master cyl.
|
|
|
|
|
12-13-2010, 06:40 PM
|
#3 |
|
Junior Member
Join Date: Mar 2007
Location: Hideaway, TX
Posts: 4,950
|
Re: Brake question???
My guess would be the m/c again. The one I got from Autozone lasted a whole year and I had the same symptoms.
__________________
71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400 |
|
|
|
|
12-13-2010, 07:41 PM
|
#4 |
|
'70 C-10 Primer
Join Date: Dec 2008
Location: nevada,missouri
Posts: 117
|
Re: Brake question???
The first MC that I got from Autozone was bad too.
__________________
"The difference between stupidity and genius is that genius has its limits." Albert Einstein |
|
|
|
|
12-13-2010, 08:08 PM
|
#5 |
|
Registered User
Join Date: Jun 2009
Location: Arlington Texas
Posts: 602
|
Re: Brake question???
All the parts have been on for better part of a year. So Im thinking MC too. The one on there I got last summer from Advanced auto.
__________________
1970 GMC truck 1988 Harley 1200 Sportster
|
|
|
|
 |
| Bookmarks |
| Thread Tools | |
| Display Modes | |
|
|
Linear Mode
