Hard Brake Pedal

R's opel gt · 07-17-2007

Hard brake pedal, Am restoring a 1972 GT. drove to the shop 1 year ago. As far as I can remember the brakes worked fine. Have running ready for paint but brakes are hard, any suggestions other the poss replacing the booster ?

guyopel · 07-17-2007

Low or no vacuum to brake booster .. does car move? are brakes locked up ? Maybe M/Cyl. or flex line clogged up and holding brakes on .
HTH
John

yellaopelgt · 07-17-2007

I once had the same type of thing happen when I inadvertantly put the in line booster valve thingy in backwards. Turned it around and problem solved.
Might be somthing to look at if you took it out recently.
Joe

baronbors · 07-17-2007

Brake booster diaphram leaking?

jvandyke · 07-17-2007

When I got my car it had a really hard pedal. Rebuilt brakes: rear flex hose was clogged shut, that alone accounted for the hard pedal, it still stopped fair on one good and one sticky front. If rear's are clogged, half your volume of fluid isn't moving so pedal is twice as hard? Don't know reason, but you can check if the rear's are operational easier than messn' with booster I'd think.

07-17-2007	#1 (permalink)
R's opel gt 2 seats is enough Join Date: Jul 2007 Location: Grandville, Michigan Posts: 32	Unanswered: Hard Brake Pedal Hard brake pedal, Am restoring a 1972 GT. drove to the shop 1 year ago. As far as I can remember the brakes worked fine. Have running ready for paint but brakes are hard, any suggestions other the poss replacing the booster ?

07-17-2007	#2 (permalink)
guyopel Member Join Date: Feb 2003 Location: Duluth,Ga. Posts: 648 Real Name: John Provided Answers: 2	Low or no vacuum to brake booster .. does car move? are brakes locked up ? Maybe M/Cyl. or flex line clogged up and holding brakes on . HTH John __________________ Guyopel I have not failed - I've merely found 10,000 ways that won't work." ---Thomas Edison It's amazing what God lets man get away with when lightning is so cheap. Mark Twain

07-17-2007	#3 (permalink)
yellaopelgt No....its not a Buick.... Join Date: Feb 2005 Location: IL. Posts: 1,042 Provided Answers: 1	I once had the same type of thing happen when I inadvertantly put the in line booster valve thingy in backwards. Turned it around and problem solved. Might be somthing to look at if you took it out recently. Joe __________________ What ...we got here...is........failure......................... to communicate.... Some men,you just cant reach...so you get what we had here last week...which is the way he wants it. Well, he gets it...I dont like it, any more than you men...

07-17-2007	#4 (permalink)
baronbors 1000 Post Club Join Date: Dec 2002 Location: League City Texas Posts: 1,117	Brake booster diaphram leaking? __________________ Texas Opel Preservation Society

07-17-2007	#5 (permalink)
jvandyke Opeler Join Date: May 2006 Location: Hudsonville, Michigan, USA Posts: 1,794	When I got my car it had a really hard pedal. Rebuilt brakes: rear flex hose was clogged shut, that alone accounted for the hard pedal, it still stopped fair on one good and one sticky front. If rear's are clogged, half your volume of fluid isn't moving so pedal is twice as hard? Don't know reason, but you can check if the rear's are operational easier than messn' with booster I'd think. __________________ "Being ignorant is not so much a shame, as being unwilling to learn." Benjamin Franklin Last edited by jvandyke; 07-17-2007 at 08:09 PM.

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