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Joined: Apr 2008
Posts: 1,194
ChatMaster - 1,000
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OP
ChatMaster - 1,000
Joined: Apr 2008
Posts: 1,194 |
Last summer I replaced all 4 wheel cylinders on my '50 4dr with NORS cylinders. They had been sitting on a shelf for many years so I put all new pucks in them and made sure that the inside was clean and free of any rust or corrosion. I got the car out this spring and the brakes worked good. Then I ended up with a right front wheel cylinder leaking so I took it apart, checked things out real close. Everything looked real good, not to much clearance between the piston and the bore of the cylinder. It worked good for a day or so and its back to grabbing real bad. I can see that I have fluid on the backing plate so I know its leaking again. Just wondering if anyone has any ideas? I did replace the front wheel cylinders with the original 1 5/16 bore cylinders.
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
The rubber cups are the critical part to prevent leaks. If those are in good condition and the bores smooth you should not have leaks. Of course the springs and pucks also have a part in the functioning of the brakes. I would replace the cups if you have leaks.
How Sweet the roar of a Chevy four!
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
There may be rust granuals in the system that are getting in between the cup and bore. Give it a close examination when you disassemble it.
Gene Schneider
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
When you are about to give up, have the wheel cylinders sleeved, also the master cylinder.  
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Apr 2008
Posts: 1,194
ChatMaster - 1,000
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OP
ChatMaster - 1,000
Joined: Apr 2008
Posts: 1,194 |
I got it all fixed. Ended up going to a different supplier and got some fresh wheel cylinder pucks. I think the ones that I first used had sat on someones shelf way to long. I have driven the car close to 700 trouble free miles since repairing.
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Joined: Jan 2008
Posts: 366 Likes: 1
Backyard Mechanic
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Backyard Mechanic
Joined: Jan 2008
Posts: 366 Likes: 1 |
Dean 50 - VCCA #44675
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