Thread: Fitting Wilwood RPV to 3/8" flared line

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I do believe that I get it. The pipe thread is leaking, 31 and what you say is exaclty what I have minus the sealer.

Steve- I have the "3/8" UNF male tube nut" into the "1/8" NPT to 3/8" UNF Female adaptor" into the residual pressure valve which is 1/8" NPT and I will put a little sealer a few threads in, but you say sealer is not necessary? All four of my adapter to rpv connections leak. I think I got it a couple posts ago because it seems to be exactly what I have, but I appreciate everyone taking me through this.

Originally Posted by 35fordcoupe

I do believe that I get it. The pipe thread is leaking, 31 and what you say is exaclty what I have minus the sealer.

Steve- I have the "3/8" UNF male tube nut" into the "1/8" NPT to 3/8" UNF Female adaptor" into the residual pressure valve which is 1/8" NPT and I will put a little sealer a few threads in, but you say sealer is not necessary? All four of my adapter to rpv connections leak. I think I got it a couple posts ago because it seems to be exactly what I have, but I appreciate everyone taking me through this.

Oh well - just make sure you give us an update with the 'fix'. These 'nigglers' are fun to talk through and most of us really like to spend other folks money as well.

well I guess I don't get it then or I am not explaining what I have well enough, but from what I can tell what I have is Steve's second option. Dave- I think you have me wrong here. I came here for help and appreciate what I am getting, but if I am not understanding quick enough I appologize..

You have it right in these pics, next double flare the pipe and usea male 3/8" UNF tube nut and your there.

While we are talking flares in my opinion all brake lines should be double flared including stainless line, I believe its actually illegal here in the UK to single flare a brake line.
Single flares have a habit of cracking behind the flare where the double flares are much stronger due to the twin wall effect from double flaring.

Originally Posted by 35fordcoupe

well I guess I don't get it then or I am not explaining what I have well enough, but from what I can tell what I have is Steve's second option. Dave- I think you have me wrong here. I came here for help and appreciate what I am getting, but if I am not understanding quick enough I appologize..

I think you may need to tighten them more, According to the book NPT are self sealing, Most i do are self sealing but occasionally i get one that needs a touch of sealer. I never use the tape type as the paste is so much better.

Originally Posted by 35fordcoupe

I do believe that I get it. The pipe thread is leaking, 31 and what you say is exaclty what I have minus the sealer.

Steve- I have the "3/8" UNF male tube nut" into the "1/8" NPT to 3/8" UNF Female adaptor" into the residual pressure valve which is 1/8" NPT and I will put a little sealer a few threads in, but you say sealer is not necessary? All four of my adapter to rpv connections leak. I think I got it a couple posts ago because it seems to be exactly what I have, but I appreciate everyone taking me through this.