Master cylinder leaks

[Guest Dodge Joe]

What is good to use on threads when putting the brass fitting into the master cylinder? I leaks, and I've tryed pipe tape and it still leaks.

Dodge Joe

[Don Coatney]

Joe;

Not sure what brass fitting you are talking about. If it is the fitting where the brake line connects no pipe dope is required as this is a double flare fitting. The seal is made at the flare and not by the threads. If this fitting is leaking you most likely have a cracked or bad flare. Pipe dope is only required on tapered pipe threads.

[Bill pilot99]

Try a new fitting.

[grey beard]

Joe Dodge,

You wouldn't by any chance be using a remote master cylinder reservoir that keeps the ms filled by gravity, would you? If you are, please know that there is a very tiny vent hole drilled into the cap for obvious reasons that must be brazed/epoxied shut in order to use the remote reservoir, or I guarantee a steady leak. JMHO