MTFCA Forum

Does the neoprene gas line packing work any better than the felt packing. Just installed a new gas tank and line on the ‘24 Coupe a few days ago and for the first time ever have tiny gas drips.
Over repeated tightening the felt is compressed to the max and the nuts will not tighten any more. I suppose I might try additional packing or will the neoprene solve the problem?

If you use felt, replace it with fresh felt each time you have the line off. A short piece of neoprene hose the size to slip over the line and inside the nut works very well and can be used over and over.
Norm

I have cut little doughnuts from neoprene tubing to use there and it has worked very well for me.

Just add 1/2 one more felt sleeve. It will take a set on a steel line. If coper it will crush it.

I have soaked mine in oil which seems to work. I have also soaked it in leftover soap from a soap dish and that works, too. The felt by itself does not work so well.

We use EZ TURN, fuel lube on gas and oil fittings. Takes up some of the slop in old threads and doesn't degrade when exposed to petroleum products. Keeps those pesky little drips away. For instance, I just dressed ny oil plug with it after an oil change in the T yesterday. Works very well. You can find it at online aircraft sites as it is apparently used in the aircraft trade. Worth its weight in gold.

Andy

5/16 " black fuel hose is two ply. There is an inner layer, then a woven fabric layer, and an outer layer over the fabric. I cut a 1/4" length of this hose, slit the outer layer and peel it off, exposing the fabric layer. You can tease this off if you like, but that inner layer, with the fabric still on it fits the T fuel pipe snugly, allows the pack nut to go over it, and makes a perfect seal against the cast brass elbow in the carburetor. It is reusable over and over.
Hope this helps,
Allan from down under.

MichaelPawelek wrote: ↑

Sat Nov 27, 2021 11:20 am

Does the neoprene gas line packing work any better than the felt packing. Just installed a new gas tank and line on the ‘24 Coupe a few days ago and for the first time ever have tiny gas drips.
Over repeated tightening the felt is compressed to the max and the nuts will not tighten any more. I suppose I might try additional packing or will the neoprene solve the problem?

Hi, The neoprene packing you can purchase from Langs & Snyders works well, I have it on my line and zero leak.

Retro54 wrote: ↑

Sat Nov 27, 2021 12:59 pm

We use EZ TURN, fuel lube on gas and oil fittings. Takes up some of the slop in old threads and doesn't degrade when exposed to petroleum products. Keeps those pesky little drips away. For instance, I just dressed ny oil plug with it after an oil change in the T yesterday. Works very well. You can find it at online aircraft sites as it is apparently used in the aircraft trade. Worth its weight in gold.

Andy

Loctite 567 works equally as well. Don't know if one is more readily available than the other. Lot of times thats the deal breaker for a product, if you need it, you usually need it now!