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Old 06-13-2023, 07:52 AM   #63
72c20customcamper
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Join Date: Jul 2018
Location: Catskill Mountains,NY
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Re: brakes go to floor

Quote:
Originally Posted by K10-Kansas View Post
I replaced the master cylinder brake lines because I felt that they weren't getting a good seal. They were 51 years old. Bench testing the master cylinder shows it working well. I adjusted the back drums and they are so far out now that it is really tough to get the drums on and off. I put the bleeder bolt in the proportioning valve. Bled all of the lines again. I added fluid to the master cylinder everytime it got down halfway. That happened about 5 times. And the brakes still go to the floor. I can build up a little bit of pressure if I pump the brakes several times but even doing that, it doesn't stop the wheels from spinning. I've got it up on stands with the tires off.

Any suggestions?
Seams weird that you had brakes when you drive it off the trailer . Did you change out the front calipers ?
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72 c20 custom camper Husky edition,
66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark
1969 AMX ,
1968 c20 stepside ,85 K20
1977 Suburban sold
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