Brake Bleedin question
Thread Starter
Racer
Joined: Oct 2001
Posts: 271
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From: St Louis MO
Brake Bleeding question
After replacing my rear calipers and bleeding all my brakes (in the correct order), I discovered I needed a new rear brake line. While replacing the rear brake lines, the rear master cylinder drained, the front stayed full. So I rebled the rears only.
Do I need to rebleed the fronts? Is there anyway in the master cyliner or proportioning valve that air can transfer from the rear brakes to the front?
Gary
[Modified by Garys '68, 6:46 PM 4/27/2004]
Do I need to rebleed the fronts? Is there anyway in the master cyliner or proportioning valve that air can transfer from the rear brakes to the front?
Gary
[Modified by Garys '68, 6:46 PM 4/27/2004]
Race Director
Joined: Nov 1999
Posts: 10,643
Likes: 8
From: Foxfield CO 1970 Convertible
Re: Brake Bleeding question (Garys '68)
I would bleed the rears then check pedal firmness. If the brake pedal feels solid (and if the brake warning light does not come on) then you should be good to go. Unless there is a leak, there shouldn't be any transfer from front to rear.
Good luck
:)
Good luck
:)
Melting Slicks
Joined: Feb 2003
Posts: 2,330
Likes: 6
From: Long Island NY
Re: Brake Bleeding question (Garys '68)
If after you bleed the rears, remember drivers inner first, and the pedel is hard your done. A good pedel is your test, if it's still good after a short drive, your done. But it is a good to bleed the system anyway...
Race Director
Joined: Mar 2001
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From: San Francisco CA
St. Jude Donor '07
Re: Brake Bleeding question (Garys '68)
I would say fronts don't need to be bled. Front and back are supposed to be two independent systems, key word = supposed. Couldn't hurt to do it again if you have the time and extra brake fluid.
Melting Slicks
Joined: May 2001
Posts: 2,131
Likes: 4
From: May help you? You can sure as hell try!
Re: Brake Bleeding question (Garys '68)
I'd bleed both front and rear just to replace the old fluid. It absorbs water over time and will eventually rot your lines and corrode your M/C if allowed to get too old. You'll be surprized how funky the old fluid will look if it's more than a couple of years old.
Thread Starter
Racer
Joined: Oct 2001
Posts: 271
Likes: 0
From: St Louis MO
Re: Brake Bleeding question (LemansBlue68)
I had already replaced all the front fluid after replacing rear calipers and rear fluid. I then found the bad line in back (bad timing). Anyway, the pedal is much harder and it seems to stop OK. Looks like I'll be OK as is.
Gary
Gary
