86 Master cylinder reservoir replacement
Thread Starter
Heel & Toe
Joined: Aug 2009
Posts: 15
Likes: 0
86 Master cylinder reservoir replacement
Does anyone have any tips on an easy way to put the stock reservoir back on a rebuilt master cylinder. I've got the rear reservoir on but cannot get the front cap and fluid tube that connects to the rear reservoir back on and connected.
Burning Brakes
Joined: Jun 2008
Posts: 892
Likes: 1
From: New Smyrna Beach Florida
my 89 has 2 reservoirs. maybe you could put 2 on. I know they don't cost much.
My fluid leaks from the front to the back reservoir. I don't know if that is normal or not. It seeps out of the rear reservoir cap. I don't know if that means it needs rebuilbing or not.
My fluid leaks from the front to the back reservoir. I don't know if that is normal or not. It seeps out of the rear reservoir cap. I don't know if that means it needs rebuilbing or not.
Thread Starter
Heel & Toe
Joined: Aug 2009
Posts: 15
Likes: 0
Jimbo,
Thanks for your reply. I think I will try putting on an additional reservoir. It would probably prove easier than putting on the origional cap and travel tube, although putting that rear reservoir on was not easy either.
Thanks for your reply. I think I will try putting on an additional reservoir. It would probably prove easier than putting on the origional cap and travel tube, although putting that rear reservoir on was not easy either.
Thread Starter
Heel & Toe
Joined: Aug 2009
Posts: 15
Likes: 0
Agent 86, Thank you for the diagram. I will try this today. I'm starting to believe that the aftermarket gromets are to big for the origional reservoir.
Last edited by Von; Dec 7, 2009 at 10:22 AM. Reason: added statement
Burning Brakes
Joined: Dec 2004
Posts: 918
Likes: 5
From: Gainesville FL
When I did this job on my dual-reservoir master cylinder (89), I went through every four letter word in my vocabulary and invented a few new ones while I was at it. A little bit of brake fluid on the seals and lots and lots and lots of pushing. I didn't think they would clear the gasket either, but they eventually did. You have my sympathies - this was not a fun job.
Safety Car
Joined: Jan 2008
Posts: 3,939
Likes: 1
From: Vero Beach Florida
When I re-did the single reservoir set-up on my 87, I went from the single to a double reservoir set-up. Took under an hour did it right on car. The parts for the single set-up with one reservoir are no longer available, mine was leaking at bottom of connection tube.
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Le Mans Master
Joined: May 2006
Posts: 9,226
Likes: 9
From: Irvine Ca
The hardest part about swapping the MC is those cups.....it's all downhill from there.
Use some 90w gear oil on the grommets when you start. Just spread a thin film on the grommets.
I only succeeded in getting the cups on, only after I got mad and went into destruct mode......then they slipped into place.
Use some 90w gear oil on the grommets when you start. Just spread a thin film on the grommets.
I only succeeded in getting the cups on, only after I got mad and went into destruct mode......then they slipped into place.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
The reservoirs are available at the usual Corvette parts suppliers.
I went to two reservoirs because I wanted to be able to see if the front or back brakes had a problem. One thing I have noticed is that the front reservoir fluid discolors faster than the rear fluid. The front brakes are obviously working harder.
I went to two reservoirs because I wanted to be able to see if the front or back brakes had a problem. One thing I have noticed is that the front reservoir fluid discolors faster than the rear fluid. The front brakes are obviously working harder.
