master cylinder fill cap gasket

[spongebob]

i tried to use an o ring on the fill cap for the master cylinder on my 54 windsor. it does not seat properly and i actually ended up with a small piece of it broken off and ending up inside the master. the original one is a metal crush washer but i have not found one available anywhere. a teflon washer of this size would work, but where to get one? these small parts can often be hard to get. and as an aside, hidden valley auto parts is closing early next year. you can bring tools and get what you want.  dennis

[soth122003]

Are you sure it's a crush washer and not just a soft thin metal washer? If your just looking to seal it, try the hardware store for a washer in the plumping supplies. Or you can use thin cork gasket material and cut one your self.

 

Joe Lee

Edited Friday at 07:31 PM by soth122003

[Sniper]

McMaster-Carr or even Grainger are two places I go for stuff like that.

[desoto1939]

I looked in my wagner brake catalog and looked up the master cylinder info for your car.

 

You use the filler cap # FC4073  and the gasket is FC5922.

 

refer to the picture 13c  which is the filler cap and the gasket which is listed below it as FC522

Then go to picture 14 filler cap gasket

FC5922 is listed as a fibre gasket  1 17/64 - 1 1/2

 

If you go to a Napa store with  this information they might have it in stock or can order you one.

 

This is again where having cross reference and old car manufacture catalogs comes in handy.

 

 

On the last page go to the bottom of the sheet and look at FE17632 that is your master cylinder for your car

Rich Hartung

Desoto1939@aol.com

 

 

 

Edited Friday at 09:55 PM by desoto1939

[spongebob]

desoto, alot of good info there. thanks. i have a napa nearby. i remember that the gasket was a thin metal washer, but having the correct fiber one should be better.  thanks,   dennis

[chrysleritis]

You don't need much of a tight seal on the fill cap on the master cylinder. The caps all have a small air vent hole in them, strategically placed so as not to let dirt in. So the gasket under the cap can really be any old thing as long as it does the job of keeping out crud. DIY cork or fiber should be fine, and I've had some janky-looking homemade gaskets on there over the years. Probably you're the only one who sees it! I prefer fiber, since it won't flake apart like a cork one might, which would land you back in the same place as with your piece of o-ring...