brakes....
Thread Starter
Le Mans Master
Joined: Nov 2004
Posts: 7,186
Likes: 45
From: detroit area
brakes....
i have new calipers and a new master cylinder also new braided lines.... i still can't get a pedal.... it's spongy and won't stop until all the way down.... any ideas..... lines don't have any air....good bleeds...
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Thread Starter
Le Mans Master
Joined: Nov 2004
Posts: 7,186
Likes: 45
From: detroit area
yup...bleed the mc b4 install...... i put in a new cam and still need to fully adjust the timing and rockers...u think i could be losing vacuum there.... i'm not really sure.....
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Race Director
Joined: Sep 2002
Posts: 10,362
Likes: 5
From: San Diego - Deep Within The State of CONFUSION!
I just did mine yesterday and I'm amazed at how long it took me to get a pedal out of it. 
I bench bled the master too, and used my vacuum bleeder on all four rear bleeder valves. When I started to get fluid outta the right rear outer, I moved to the right rear inner, and same with left side. No pedal yet so I did it again. Burned right thru a whole quart of fluid then, only to get a very poor at best, pedal out of it.
Started again with the RRO bleeder, and waited til I had a good solid shot out of it, then on to the RRI bleeder. Same with LRO then LRI and now it has a great feel to the brakes. Best since owning the car.
PS on mine, I had done the front calipers last summer, and yesterday I did the rears along with a new master.
I bench bled the master too, and used my vacuum bleeder on all four rear bleeder valves. When I started to get fluid outta the right rear outer, I moved to the right rear inner, and same with left side. No pedal yet so I did it again. Burned right thru a whole quart of fluid then, only to get a very poor at best, pedal out of it.
Started again with the RRO bleeder, and waited til I had a good solid shot out of it, then on to the RRI bleeder. Same with LRO then LRI and now it has a great feel to the brakes. Best since owning the car.
PS on mine, I had done the front calipers last summer, and yesterday I did the rears along with a new master.
Race Director
Joined: Oct 2000
Posts: 15,044
Likes: 79
From: central FL, near the beach.
Melting Slicks
Joined: May 2005
Posts: 2,143
Likes: 0
From: San Diego California
I didnt drive my car for a month and all of a sudden the brake pedal feel's spongy I dont know why the brakes were great before and know it feels spongy and sometimes the brake light on the dash comes on does any one know whats wrong
Le Mans Master
Joined: Oct 2004
Posts: 5,269
Likes: 54
From: Orlando Florida
St. Jude Donor '05
bleeding is a subject with so many different opinions and preferences..... I never did it before and I got perfect results with my "home depot presure bleeder"... it was a 30 minute job.... pressureize the system with a garden sprayer (bug poison sprayer) which is filled with brake fluid, bleed the sytem - careful, you'll get pretty high flow - and be done with it....
others prefer vacuum bleeding, others prefer gravity bleeding.... all of this works fine if done right.... be patient....
others prefer vacuum bleeding, others prefer gravity bleeding.... all of this works fine if done right.... be patient....
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Race Director
Joined: Nov 1999
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From: Foxfield CO 1970 Convertible
Originally Posted by Empatho
I didnt drive my car for a month and all of a sudden the brake pedal feel's spongy I dont know why the brakes were great before and know it feels spongy and sometimes the brake light on the dash comes on does any one know whats wrong