brake drum wheel cylinder

This section is for 1969 to 1976 Chrysler/Mitsubishi/Plymouth/Dodge/Colt Valiant/Galant/FTO/GTO/Colt/Cricket.
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allentot
Posts: 26
Joined: Thu Feb 18, 2010 12:32 pm

brake drum wheel cylinder

Post by allentot »

hi guys, i just finished rebuilding my wheel cylinder and found out whats the cause of the leak...its one of the piston that making the leak, its stuck and the other one moves much farther so the fluid leaks even the cup are'nt worn at all...
i'm just curious what makes the piston to stuck.?..even i know that i can replace the wheel cylinder w/o any problem.... :wut:
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karl_2ltgc
Posts: 312
Joined: Mon Mar 23, 2009 8:38 pm

Re: brake drum wheel cylinder

Post by karl_2ltgc »

Brake fluid absorbs water over time, once it cant absorb any more water you end up with water in your brakes and the pistons start rusting causing them to jam.
Sometimes you can use some very fine sandpaper to smooth off the rusty bits and grooves that end up in pistons so that they will seal up and move freely again.

This is why your supposed to put new brake fluid in every 24 months.

I wouldn't have even tried rebuilding wheel cylinders when you can get them for $15 brand new an just bang them in.
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