Brake Cylinders Leaking!!!

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dpcd67
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Brake Cylinders Leaking!!!

Post by dpcd67 » Sat Oct 01, 2022 10:45 am

ALL SIX OF THEM!!!
Talk about piss*d off! I put all NEW wheel cylinders on my WC63, which is totally new/restored, and today I tried to bleed the brakes. All of them leak, as in, fluid pours out from the bottom of the drums, runs onto the tire, and onto the driveway. Fluid comes out as fast as it can. I'm using regular DOT3.
I can't believe it. I guess they had sat for too long, dry?
Now I have to replace all the rubber pistons in them, which makes me mad.
Just venting frustration.......
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17thAirborne
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Re: Brake Cylinders Leaking!!!

Post by 17thAirborne » Sat Oct 01, 2022 12:12 pm

That truly sux. Sorry you are having to deal with that. Nothing I can add other than most of us have similar experiences from time to time. We're with you though.
Oz

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USAFpj
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Re: Brake Cylinders Leaking!!!

Post by USAFpj » Sat Oct 01, 2022 3:19 pm

Are you discussing this with the vendor? I placed (4) new MWM ones on as well about a year ago, and these didn't leak...

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dpcd67
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Re: Brake Cylinders Leaking!!!

Post by dpcd67 » Sat Oct 01, 2022 6:56 pm

They came with the truck as spare parts; the entire thing was parts.
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JBizal
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Re: Brake Cylinders Leaking!!!

Post by JBizal » Wed Oct 05, 2022 6:40 pm

Not saying you did this, but here is a common problem with Dodge wheel cylinders.

Because they are step bored, 1.375 on one side and 1.250 on the other, you have to be careful when you install them. You CANNOT roll the upper adjusters all the way inboard and put the spring on the shoes. This will cause the pistons to push the cups too far into the bore and they get nicked and leak. You should have the shoes adjusted nearly to the drum before you re-install the shoe return springs to prevent this from happening.
John


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