power disk brakes booster

Posted By: mo71cuda

power disk brakes booster - 02/20/18 01:03 AM

My brake pedal is hard, but no brakes. This is a power breaker booster failure? If so how to I test to confirm and who is the best to rebuild it?
The car is a 71 cuda 340
Thanks

Posted By: John_Kunkel

Re: power disk brakes booster - 02/20/18 01:10 AM

Did this just happen to a working system or is it a new installation?

Posted By: mo71cuda

Re: power disk brakes booster - 02/20/18 01:12 AM

Just happened, original system

Posted By: RapidRobert

Re: power disk brakes booster - 02/20/18 03:19 AM

split the booster/MC & pull MC forward enough to eyeball the pushrod. eng idling. have a helper press the pedal. You under the hood see if the round nub threaded pushrod moves out/forward like it should. I'm thinking the booster (possibly the check valve).

Posted By: mo71cuda

Re: power disk brakes booster - 02/20/18 11:46 PM

Any additional input?
If the booster is bad who rebuilds them or sells replacements.
Thanks

Posted By: Morty426

Re: power disk brakes booster - 02/21/18 01:53 AM

Originally Posted By mo71cuda

Any additional input?
If the booster is bad who rebuilds them or sells replacements.
Thanks

Dewey Boosters - I think he is in Oregon.

However make sure you don't have a vacuum leak first.

Posted By: mo71cuda

Re: power disk brakes booster - 02/21/18 09:54 PM

Dewey Boosters - I think he is in Oregon.

However make sure you don't have a vacuum leak first.

Thanks for the info