Fuel line conversion to AN

[Paladin]

I'm trying to adapt my Onan fuel line which is 5/16" to my fuel cell that I'd like to use which accepts -8 AN.
Any ideas of how to get it there? The fuel filter seems the best bet since it has a threaded male end into the female rigid line to the genset. I thought if I could get it somehow to -8 AN then I could put another fuel filter inline with the larger hose.

Any aviation or performance car gurus familiar with how I could do the conversion?

-Dave

[gus]

Just use a rubber hose and clamps, we aren't talking high pressures here. Keep it simple.

AN fittings are grossly overpriced so try to avoid them as much as possible.

[luvrbus]

I would check somewhere that sell the Earl's line of AN fittings


good luck

[Charles in SC]

Check out Aircraft Spruce, you can find them online. You will want something like an AN816-8 fitting. Remember that all flare fittings from that point on will have to be 100 degree flares.

[Van]

Give these guys a try http://www.purechoicemotorsports.com/

[bevans6]

Use an AN-8 fitting on push-on hose at the fuel cell, stick a 1/2" barbed adaptor into the hose, and adapt that to 5/16".   But to be honest, I would personally just make an adaptor, a heck of a lot easier than trying to find one.  I would start with the -8 fitting with the push on hose, though.  If you go to an Aeroquip industrial dealer, they will fix you right up.

Remember that AN-8 is 1/2" hose and the fittings use a 37 degree flare, industrial JIC is compatible but comes in both 37 deg flare and 45 degree flare, you have to make sure you don't use 45 degree on 37 degree, it is prone to leaking.

If you are going to use an electric fuel pump, you could plumb it -8 1/2" all the way to the fuel pump and then go to 5/16" on the out put of the fuel pump.  I do that all the time.

Brian

[Jerry32]

I was just looking at AN fittings on ebay as doing a conversion to VO on my bus. It seems they have all kinds of 6 and 8 fittings there. Jerry

[Charles in SC]

Check out Aircraft Spruce, you can find them online. You will want something like an AN816-8 fitting. Remember that all flare fittings from that point on will have to be 100 degree flares.

I mis-spoke, the an fittings are 37 degrees. AN rivets are 100 degrees. I am getting old and numbers go in the wind sometimes.