ouimetteracing

Hey guys I was auto crossing my car yesterday. We got through half of the runs and my reservoir cap came off of the front brake reservoir. We were unable to locate the cap so we decided to try to zip tie a piece of plastic and a rag over it just to get through the rest of the day. unfortunatly when we went to zip tie the rag the hole reservoir basically fell apart and cracked in half due to old age. I was wondering if anyone could point me in the right direction to purchase a reservoir and cap for an 1989 corvette. I found the reservoir at corvette central but they dont have the cap to it. If I can find both cap and reservoir in one it would be ideal. Thanks in advance.


Brian Ouimette
Ouimette Racing #13

CorvetteMike2024

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samsonb

Get it at your local dealer. It will be cheaper than paying shipping from somewhere else. I think I paid around $5 for the reservoir. Didn't get the cap though. I also think it is good to get new reservoirs if you get a rebuilt master. That way you can bench bleed it to make sure it doesn't leak before tearing your old master off the car.

ouimetteracing

What all am I going to need to order. Do I need to purchase both a reservoir cap and the diaphragm or should they come together. The cap that I have still looks to me like it is one piece so I thought they should be combined in one.

samsonb

The cap should be one piece. I think the diaphram is molded into the cap.

ouimetteracing

ok thats what I thought but when I went to order the cap on the product page it states
"# Stock Replacement
# Must Use P/N 107067 Brake Master Cylinder Diaphragm"

http://www.corvettesouth.com/corvett...ap-999245.html

It just threw me for a loop.

Thanks
Brian Ouimette
Ouimette Racing #13

samsonb

Maybe they are seperate. The cap on mine looked like one piece.

Why aren't you ordering through your local GM dealer? The parts are cheaper and you don't have to pay shipping. Just order the reservoir and cap from the dealer. And if it doesn't come with the diaphram in the cap. Then order the diaphram.

ouimetteracing

I just figured that the dealer is normally more expensive than online but if it truly will be cheaper then I guess ima run down to the Chevy dealership tonight and check things out.

SunCr

They often fall off because there's an internal leak in the master which then allows fluid to flow from one side to the other. You may need a new Master or at least a piston seal.

oldalaskaman

corvette speciality

CorvetteCentral.com

Hi Brian -

The plastic cap is part 194179.

You will also need 194198 (brake master cylinder rubber diapraghm).

oldalaskaman

really good to see a vender take an active interest, respectfully, bob