1/8 pipe should not leak, as it is a tapered seal thru the threads.
Is the proportioning valve cracked from twisting the 1/8 fitting to far in? (yes this has happened to me before)

Pictures?

Is the valve leaking or is one of the adapters leaking?
The 1/8 pipe should not leak, by design. (again if it was over tightened it could crack the valve, the tapered design keeps adding more and more force as you screw inward. I see cracks in stuff from pipe threads all the time)
The adapter from the brake line into the 1/8 pipe is my guess, for the leak


Mick

Ok, he already said he used a new fitting with each of the new valves.

You are right, a NPT shouldnt leak by design, but they can.

I dont think he is gonna crack the valve body. If its anything like my wilwood its a pretty solid block. Mine is aluminum. Only way you are gonna crack it is hitting it with a hammer. Even over tightening the fitting with a 24" wrench isnt gonna crack it. The fitting will compress and collapse first. Now bottoming out of the fitting is a possibility. Easy to check.

Its just leaking, simple. The fittings or the valve are cut a lil off from the standard for NPT.

I have wilwood brakes and their valve, I see the red sealant they use. I have searched their site and cant come up with what they use.

It looks like a solid setting sealant VS a pliable sealant. But I have used various pipe dopes on 10,000 PSI hydraulic systems and didnt have any leaks. You use just the slightest amount. Its not meant to fill any large gaps, say like a straight thread. But when used with a NPT that is self sealing it helps with getting a good seal in two ways. Helps with friction while tightening and helps to fill the microscopic gap you can get with a tapered thread. Most of the sealant is pushed out while tightening, thats why you only want to slightly fill some of the thread roots.

Really, try some pipe dope. And when I say pipe dope I mean any of the stuff available from permatex or lock tite. They both make some decent thread sealants. Thread sealant, not locker. JR

He said it was fixed...lol

:lol:

Hahaha.. I missed that line. Thanks. I need to pay closer attention to the words and not the problem :) Glad he worked it out. JR