How tight for 90 degree brake cylinder elbows?

[Walt]

I hate fuel lube! I've had excellent results with both Tightseal and Bakerseal. Pipe thread fittings must be very tight, most folks tend to be scared to tighten them enough. Never use aluminum fittings in aluminum threads.

[TS Flightlines]

If you are planning on taking a 1/8 NPT tap and chasing the the treads, and making a 'better' solution, remember NPT is a tapered thread, so if you thread the tap deeper into the hole, the top will be slightly wider when finished, So you'll have to screw the adapter in further for the threads to interlock. Even with your favorite sealant, it may not solve the issue. Yep---I actually saw a really nice master cylinder with a broken thread section of an AN fitting in it due to the re-engineering of the cylinder. Be careful.
Tom

[bruceh]

I used Loctite 567 on all of my pipe thread fittings and it has performed great. No leaks.

[jrs14855]

Originally Posted by Walt

I hate fuel lube! I've had excellent results with both Tightseal and Bakerseal. Pipe thread fittings must be very tight, most folks tend to be scared to tighten them enough. Never use aluminum fittings in aluminum threads.

plus one for titeseal. One of my early mentors convinced me of this many years ago. Never a problem with titeseal. If it is stored in an extremely hot environment you must stir it with a small screwdriver or something similar because it does separate in hot environment.

[Michael Burbidge]

Do you have to let the 567 set up before you put the fluid back in?

Michael-

[DanBaier]

As crazy as it sounds, I once heard that steel (instead of aluminum) fittings would help prevent leaks. So, I put them in and, as an anecdotal sample of one, can report - no leaks.

I have seen the teflon tape used with some success (absolute heresy!) I'd be very careful to start it up several threads to prevent any debris from getting into the brake cylinder.

Dan

[tomkk]

I see Light and Medium weight Titeseal. Which to use?