Thanks for the reply and link...............JEFF


64F100 57FAIRLANE500

That fancy looking thing in the valve cover is an adjustable pcv valve.  The other valve cover has a breather for crankcase intake air.  I fill thgough the breather hole in the other valve cover.

Adjustable valve:  http://mewagner.com


Lawrenceville, GA

Good to see the AN route solved the problem and your fuel lines look really nice.     Maybe my eye sight is getting worse but how did you arrange the crankcase oil fill and air intake breather?


64F100 57FAIRLANE500

I went the AN fitting route.  I hope it's a reliable solution for street use because I like the look.  Haven't had a problem with the fuel lines.
I also added some functional bling, the polished aluminum hose separator.  I used a zip tie before.
No leaks found while running.  It's cooling down now.  So hopefully this is problem solved

The AN to pipe adapter fitting threaded normally so the threads of the new valve must not quite be right.  



Here's the best before pic I have.





Lawrenceville, GA

I would try the pipe die. Ordinarily I would say try a pipe tap in the intake but since the orginal worked I would go with the pipe die. Try it the with the tapered end first. If that doesn't work reverse the die but be careful and take youre time.

Flare fittings are usually fine thread SAE. I run into this all the time at where I work. A 3/8" NPT die will fix it most likely. We get fitting from China that are like this or worse. Some are threaded so shallow the fitting won't even start and some so long they bottom out on the mating part before it gets tight. A thread or two will make a big difference in the fitment.

Durham Missouri

Yes flare fittings. They are very similar but different. 

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire

Charlie, Before messing with the manifold  maybe chase the threads on the valve with a 3/8 NPT taper die. Not sure if you have clearance for the die to remove some metal from the valve. This just might give you at least 3 threads of engagement.  Just a thought - Bob

AKA   Bob-93021

It should not be in this case.  The thread is advertised to be 3/8" pipe thread, which is what the manifold has.  The diameter and thread pitch match the specification for 3/8 pipe thread.

What's a tube thread?  The thread for flare fittings?

I'm not necessarily thrilled about a replacement valve, either but I do need one.  It's cold enough here in the winter.  This replacement is made in the USA so it has that going for it.


Lawrenceville, GA

Could it be as simple as the difference between a pipe thread and a tubing thread? 

Y's guys rule!
Looking for McCullouch VS57 brackets and parts. Also looking for 28 Chrysler series 72 parts. And early Hemi parts.

MoonShadow, 292 w/McCulloch, 28 Chrysler Roadster, 354 Hemi)
Manchester, New Hampshire