How to seal this fuel fitting?

[John Mullins]

I am putting an EFI system on my '67. Already ran a 3/8" fuel line for high pressure and plan to use the original line for the return.

Bought a 6-AN to 22mm adapter to connect to the fuel tank fittings...should I use tape to seal the 22mm side? Just a washer and friction?





Any advice appreciated!

TIA,

John

[timmy2]

Flat to flat sealing surface? Use a compression sealing washer. Check your torque settings. Should be similar to the oil tank settings for same size bolt and sealing washer.
Then again, there are only o-rings on my mocal oil cooler...

[NickP]

I had a seep from my fuel line feeding the tank that was resolved after using Teflon tape on the threads. The fiber compression washer wasn't quite enough.

[sc_rufctr]

That looks like an alloy fitting. Be carefully not to over tighten it. You'll feel it let go if you do and I don't know what torque setting to use.

Can you get the same fitting in steel?

[BoxsterGT]

Use an Aluminum Drain Plug Washer. Should be available locally. Perhaps a bit of loctite on the threads as well. Use the type not affected by gas.

Len

[John Mullins]

Great, thanks for the suggestions guys!

I went to my local hardware store but they didn't have any aluminum washers that would fit, but did have o-rings that seem to work. Will let you know...

John

[timmy2]

I'd only use the o-ring if the fitting pictured has a groove cut in it for an o-ring to seat.
Otherwise get an aluminum crush washer from Pelican or any hydraulic line repair shop.