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ok im looking for some info here ,
1..... what sealant can you use on threads for brakes with brass, i have a couple 90 degree non flared fittings to seal
2....residule valve ....one side is 3/8 20 and the other side comes with a nut and a cone shaped insert inside , i use 3/16 line and what kind of flare the cone shape looks large ..
hope this makes sence :eek:
All brake lines should be flared or double flared lines. I don't know any sealer on the planet that will withstand 2,500 p.s.i. Brass compression fittings are a no-no also.
If you've ended up with parts that have no flare seat, then they are not brake parts. Toss 'em and get the right stuff. Always err on the side of caution.
If the flares and fittings are correct, no sealant is required. As Tech said, there's nothing made to do it. Brake fittings have to be leak proof on their own.....
Do you have any pics of the parts that you are talking about.The reason I ask is they dont sound like they are brake fittings other than the residual valve that you mentioned.As in above posts there is no sealer avalible for any brake parts.Most of all lines and fittings have a normal flare or a bubble flare.Those flares are what makes the seal.If for any reason you have any dought on what you are using get rid of it.The last thing you want is to be out cruising and loose your brakes and hurt yourself or someone else.Brakes are serious stuff when building a rod
JMO
willwood res valve are npt and so is many caliper bodys.i have used fitting that were made from brass with npt you can use teflon tape or small amont of teflon dope
when I put the willwood res valve in my Falcon, I used no sealer, and got no leaks, maby I was lucky?Quote:
Originally Posted by pat mccarthy
yes maybe run out and play the lotto :3dSMILE: some of then fitting have a red dope on them all ready i like just a bit of it not go nuts:whacked:Quote:
Originally Posted by Matt167
hey guys thanks for the info , a couple problems arrized when i got my speedway thru frame fittings the one end is 3 an and the other 1/8 in pipe thread , i need a elbo and a t fitting that would work on ths and also using a 3/8 thread on the other end , im using 45 deg inverted flares , since the thru frame fittings have just plain thread on one end with no flare to it i have to reley and a threaded fitting not to leak , hopefully you understand as im tring to explain it all
There are quite a few places where you may need brass NPT threads on a brake system. For example, if you have through-the-frame fittings, one end will be flare, and the other will be NPT. You use a NPT to inverted flare elbow or tee to tie in the brake lines.
Residual valves and proportioning valves can have NPT fittings. There you need a NPT-to-flare straight adapter. The attached prop. valve comes with NPT adapters.
You need teflon tape or a teflon sealer on ANY pipe thread. However, you never use a sealer on inverted flare or AN flare fittings.
you do not use 45 flare on any brake parts look at 37 jic fittings you can find what you need thru mcmaster-car and others or any one that makes hyd lines
when i ask about sealer that is for the non flared fittings that adapt the brass fitiings ill go out to garage and take a pic of all the stuff i have so we can see it
on another note , i can just order the speedway ss line kit . but then i have to buy a pricey 37 deg flaring tool , did someone say that homedepote sells a nice flaring tool for an fittings??
buy a good one and it will last a life time i have a KD can be pickup at a auto parts store
That's what you use sealer on.Quote:
Originally Posted by godspeed32
I don't think that Homedepote sells double flare, flaring tool. Brakes are double flare and home use is single flare.Quote:
Originally Posted by godspeed32
I take it you have never flared SS tubing before. I have not either but I hear it can be a bit** at times, much more than steel lines. I make up my lines then take them to a auto shop (not a checker type store) and they put on any type flare I need for free! I don't have a good flaring tool.
Pat
You can borrow a double-flare tool from Autozone for free.
Rigid also makes the best flaring tool I have used.Not cheap ,But it last you forever.
George, you're right....They ain't too cheap....:LOL:......I have three of them....you know why? Cuz I can't find the previous one I purchased to replace the one I couldn't find to begin with..:LOL: One day, I'm gonna have to have a long talk with that boy!. Seriously, everyone needs a good flaring setup and the double flare option is a must in my book.
For those NPT fittings use Loctite 567. It's a PTFE based sealant thats good to 10,000psi @ 205 degrees C. I've used it on nitrogen lines that needed to be tested to 6000psi and on the NPT fittings in my brake system, no leaks at all.....ever.
Look HERE
thanks guys that helps a bunch , most of my fittings that need sealer are on the rear brake area . so at least the fronts arent like that but hey lets be safe all the way around
If you're working with stainless, use compression fittings. It's not worth trying to flare. Swagelock is like the Ferrari of compression fittings. Swagelock compression fittings require no special tools, only two combination wrenches.
Everybody has covered it already, no sealant on flare fittings but you do need sealant on pipe thread fittings. However, I highly discourage the use of teflon tape. Even if you're really careful and don't tape all of the way to the end, when you disassemble you will get strings of teflon tape in the system. Teflon tape can plug up the small orifices often seen in hydraulic systems. I recommend a non-hardening sealant that won't chunk of leave stringies behind. These include Permatex High Tack, #2, and Aviation Form-A-Gasket. Sealant should never be used to seal the threads of a flare fitting. Even if you seal the threads, it will just follow the tube and leak there. The angled faces of a flare are what do the sealing. I have used Copaltite on the faces to seal steam traced flare fittings, but never on the threads.