Bought a cheap Actron bleeding Kit. A small tube of clear sealant in the package. My Speed Bleeders have a factory coating on the threads.
Does anybody use sealant on the fittings to the distribution block or wheel cylinders? If so, what do you use? One website I found suggested white teflon tape. Afraid to use this as I would think a piece could get clogged up in the line.

Why do brake lines come with 1 longer fitting? Am working on lines from my master to the distribution block. Does it matter which end goes where?

Thanks,
John
1965 Malibu
TC #144

Don't use sealant on a flared fitting. It will not help.

Peter

No sealant. Flare fittings seal by a flared end being pressed against a tapered seat, the thread doesn't seal at all. Using sealant on the thread won't help a bit, and using sealant on the tapered seat will probably result in contamination in the brake system.

The longer fitting is for places that are difficult to reach. On standard lines, it's there "just in case". It doesn't matter which end it goes on, as long as it fits.

Thanks!

John

Is this a vacuum bleeding kit? If so, you would install the sealer on the threads of the bleeder screw to prevent air from pulling in around the threads when you vacuum the system. Since the bleeder screw is loose, only the sealer will prevent air from sucking past the threads. Once the screw is tight, the cylinder is sealed by the taper on the base of the bleeder screw.

I have no use for vacuum bleeding, although sealing the threads of the bleeder screw would eliminate my biggest objection: You never know when you're done, because of all the air entering the system past the threads of the loose bleeder screw.

A drop or two of oil on the threads is a good idea though.