Gasket material for brake reservoir

Mark Thompson · Post by **Mark Thompson** » Mon Nov 27, 2006 2:09 pm

I need to fabricate a gasket for my 4AD brake fluid reservoir. It is to seal where the brake line connects to the botom of the reservoir. Can anyone recommend a suitable material that will resist breakdown in the brake fluid environment.
Thanks, Mark

BRG · Post by **BRG** » Thu Nov 30, 2006 2:56 am

Mark,

This should be a flare fitting that self seals with tightening. If it won't seal a piece of soft copper can be formed with a hole in the middle to help seal.
BRG

Mark Thompson · Post by **Mark Thompson** » Thu Nov 30, 2006 1:18 pm

Apparently my brake fluid reservoir had been modified (or broken ) in the past. My reservoir has a hole in the bottom and a bulkhead type fitting adapted to it. Thus, the need for some type of flexible gasket to seal between the fitting and the reservoir. Any suggestions for a material?

BRG · Post by **BRG** » Fri Dec 01, 2006 1:52 am

Mark,

Try getting a flat washer with an o-ring mated to it. This should work fine if you use one on each side and they fit snuggly on the screw threads.
BRG

Mark Thompson · Post by **Mark Thompson** » Fri Dec 01, 2006 2:25 pm

I can do that, but I don't know what material to use for the o-rings to resist breakdown by the brake fluid.

BRG · Post by **BRG** » Sun Dec 03, 2006 2:24 am

Mark,

The o-rings should be made of neoprene and will be resistant to brake fluid.
BRG

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