C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Master Cylinder rebuild question

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Old Jun 22, 2011 | 06:43 PM
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Default Master Cylinder rebuild question

I read somewhere that when your master is leaking through the warning switch, it can be rebuilt instead of a new one being purchased. My Master Cylinder leaks from the rear res to the point that I'm keeping a bottle of brake fluid in the car. Is there an outlined reason or procedure on how to fix this?
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Old Jun 22, 2011 | 07:04 PM
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............ The whole deal is described with schematics in your Helms Factory Service Manual .............
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Old Jun 22, 2011 | 08:58 PM
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I unfortunately don't have a FSM. I've done well keeping the car running without it so far, so I've been trying to conserve money since I'm paying my way through college.
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Old Jun 23, 2011 | 10:35 AM
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Sounds like the rear seal is gone. If one seal is bad, then all should be replaced at the same time. I've rebuilt the m/c on both 89's. It's not that hard if you're careful with your box wrenches while removing the brake lines (if you don't have flare wrenches) and follow the instructions in the rebuild kit.

I double checked the usual suspects, i.e, RockAuto, AutoZone, NAPA, and Advance Auto, and it seems that a rebuilt m/c unit is cheaper now than the m/c rebuild kit so the choice is up to you. Since you're on a budget, the rebuilt unit looks like a better deal for a quick weekend project.

Good Luck!
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Old Jun 23, 2011 | 02:15 PM
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Shameless plug...

I have one for an LT1 if that helps.

http://forums.corvetteforum.com/c4-p...-cylinder.html

If you're interested I'll include shipping in the price.
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Old Jun 23, 2011 | 02:42 PM
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Got me a Cardone rebuilt MC from Advance Auto, where the clerk told me it was "Too damn expensive" and that I could get one from an '87 truck for practically $15, so he discounted the price on the one I was buying Excellent trip to Advance Auto
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