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dankurth · 01-12-2014, 01:12 PM

I put a new gas shut off valve in my '29 Leatherback and coudn't get the fuel line nut on the valve side to tighten up. When I took it off I found the nut was cracked all the way through. I had a couple of spares on the shelf but when I looked them over, they had the same problem. An easy fix was to cut the line and install a short 3/8 brass flare nut, drilled slightly larger to fit the gas line. Cut an additional 1/4" out of the gas line to allow for the shoulder of a flare coupling and I was on the road again. All the parts came from Ace Hardware but any hardware store should have what you need.
If you take a look at the original nut you will see that there isn't much material being pressed against the valve flare and after all these years the nuts don't seem to be able to stand the pressure. If you're using an original fuel line it might be worth your time to take a look at it. There's no convenient time or place for a fuel leak.

01-12-2014, 01:12 PM	#1
dankurth Member Join Date: May 2010 Posts: 48	Cracked nuts I put a new gas shut off valve in my '29 Leatherback and coudn't get the fuel line nut on the valve side to tighten up. When I took it off I found the nut was cracked all the way through. I had a couple of spares on the shelf but when I looked them over, they had the same problem. An easy fix was to cut the line and install a short 3/8 brass flare nut, drilled slightly larger to fit the gas line. Cut an additional 1/4" out of the gas line to allow for the shoulder of a flare coupling and I was on the road again. All the parts came from Ace Hardware but any hardware store should have what you need. If you take a look at the original nut you will see that there isn't much material being pressed against the valve flare and after all these years the nuts don't seem to be able to stand the pressure. If you're using an original fuel line it might be worth your time to take a look at it. There's no convenient time or place for a fuel leak.