Help... Soft Brakes.

[vossy]

I checked this weekend, there is a little drag on the rear wheels...

[68fe360]

This has all of the symptoms of a bad master cylander. internal there's an issue, pitted, bad o ring, etc. This allows fluid to flow to areas it shouldn't. such as back to the resivor. If you jam or pump the brake pedle this will cuase a sudden spike in presure that temporaily over comes the issue. Apply the brakes normally and it will be sponggy and ineffective till all most on the floor. I have had a pitted mc bore even on a new unit. some times faliures happen at the factory. Good luck!

[vossy]

I talked to a few friends and they both said the same thing. I think I will replace that next..

Thanks for the info!

[vossy]

Ding Ding Ding.. We have a winner.. New MC arrived last night.. and brakes are perfect.. Without even bleeding the system. Just bench bled the master and installed, and they are solid as sears.. Thankyou! Will of course bleed everything tomorrow but very happy. Thanks for the advice.

[hedz]

i never bench bleed a master cylinder anymore. i've killed half of them doing that. always vacuum bleed them. they usually come off the line with trash in them now a days and those particulates tend to kill them on a bench bleed. vacuum bleed will pull all that stuff straight out without harming the mc.

if i could only get my drum brakes figured out my two cents might have more value!! arg!