Brake Bleeding Question......Thinkin' too much
Thread Starter
Le Mans Master
Joined: May 2006
Posts: 9,226
Likes: 9
From: Irvine Ca
Brake Bleeding Question......Thinkin' too much
<<----First off, new Avatar.....I am man without a team. I'll keep this one through Football season
Yesterday I finally got the garage cleaned up enough to get a car in here........
I changed out the Brake master Cylinder; it was suffering from blow by.
This issue of bleeding the air out of the lines came up. The Fluid in mine was brown so running new fluid through out the entire system was in order. But for the sake of discussion, let's say the fluid was good.
If you replace the MC there is air in the lines. You have to bleed it out the traditional way. Have you ever replaced the Pads on your car?? You know how if you have the fluid topped off in the reservoir.....it will overflow as you force the Brake calipers to the wide open position.
Meat of the Question
Instead of forcing the bubble to travel through the brake lines and out the bleeder valve on the Caliper, could you just force the Calipers open to force the Air bubbles back up the system and out the Fill reservoir?
Yesterday I finally got the garage cleaned up enough to get a car in here........
I changed out the Brake master Cylinder; it was suffering from blow by.
This issue of bleeding the air out of the lines came up. The Fluid in mine was brown so running new fluid through out the entire system was in order. But for the sake of discussion, let's say the fluid was good.
If you replace the MC there is air in the lines. You have to bleed it out the traditional way. Have you ever replaced the Pads on your car?? You know how if you have the fluid topped off in the reservoir.....it will overflow as you force the Brake calipers to the wide open position.
Meat of the Question
Instead of forcing the bubble to travel through the brake lines and out the bleeder valve on the Caliper, could you just force the Calipers open to force the Air bubbles back up the system and out the Fill reservoir?
Last edited by jhammons01; Sep 10, 2006 at 11:56 PM.
Team Owner
Joined: Sep 2003
Posts: 20,179
Likes: 673
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Originally Posted by jhammons01
Meat of the Question
Instead of forcing the bubble to travel through the brake lines and out the bleeder valve on the Caliper, could you just force the Calipers open to force the Air bubbles back up the system and out the Fill reservoir?
Instead of forcing the bubble to travel through the brake lines and out the bleeder valve on the Caliper, could you just force the Calipers open to force the Air bubbles back up the system and out the Fill reservoir?
Meat of the Answer
Why consider short cutting the brake bleeding process?
Is not the objective is to remove ALL the old fluid and purge all the air?
Then remember to change the fluid every 24 months or less.
Thread Starter
Le Mans Master
Joined: May 2006
Posts: 9,226
Likes: 9
From: Irvine Ca
Originally Posted by JrRifleCoach
Yes if the bubble was for sure that close to the MC.
Meat of the Answer
Why consider short cutting the brake bleeding process?
Is not the objective is to remove ALL the old fluid and purge all the air?
Then remember to change the fluid every 24 months or less.
Meat of the Answer
Why consider short cutting the brake bleeding process?
Is not the objective is to remove ALL the old fluid and purge all the air?
Then remember to change the fluid every 24 months or less.
But you answered my question...that and all the visits to the thread and nobody has debunked the theory.
Race Director
Joined: Jun 2004
Posts: 13,963
Likes: 709
From: WI
Air from the M/C change would be close to the top, sure try depressing and holding down each caliper, that'd be plenty of fluid shot into the M/C. I'd wait a while for the bubbles to get through the fluid before releasing the calipers. So it didn't suck in small bubbles.
Le Mans Master
Joined: Jul 2002
Posts: 5,818
Likes: 2
From: Alive and well in Burlington NC
Originally Posted by alanzilo92
Does bleeding the system the "normal" way get rid of all the old fluid or do you need to do something else to completely flush the system ?
Thanks.
Thanks.
Burning Brakes
Joined: Dec 2005
Posts: 805
Likes: 11
From: Hickory Flat Ga
I use the Motiv Power Bleeder for single handed bleeding. It eliminated the need to long stroke the piston in the MC possiibly introducing trash into the ABS and the rest of the system. I didn't spill a drop! (of fluid, beer was all over the place.)
