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  View original topic: Master Cylinder
Derickpete Sat May 31, 2025 6:56 am

I’m replacing the resivor on the master cylinder and the previous owner used orange sealer so it wouldn’t leak. Is there a gasket that goes between the cylinder and the reservoir? Or what is used to make sure it won’t leak.

racecougar Sat May 31, 2025 12:19 pm

What master cylinder are you working with? Can you post a photo?

Derickpete Sat May 31, 2025 1:15 pm

It’s the stock master cylinder on a 1963 dune buggy. The resivor screws to the top of it.

racecougar Sat May 31, 2025 2:41 pm

This style? It uses an o-ring.

Dale M. Sat May 31, 2025 2:49 pm

Mine used a copper sealing washer.....But the stupid plastic body kept leaking at joint of reservoir and base connection, finally went to all billet reservoir....

Derickpete Sat May 31, 2025 3:52 pm

Thank you. I will get a o ring for it.

Q-Dog Sun Jun 01, 2025 9:12 am

The one on my buggy always leaked too. I replaced it with a dual circuit master cylinder with a plastic press on reservoir.

ORANGECRUSHer Tue Jun 03, 2025 12:53 pm

lotta bad options for M/Cs out there



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