FUEL DRAINS O'RING REPLACEMENTS
 

Hello All

I will need to remove the fuel drains on my -4 in the next week or so and I was wondering where I could buy replacements O'rings just in case I need one or two..

Any idea where I can get those?? or if you have a part # that will be fine also..

Thanks

Bruno
rv4@videotron.ca

From Van's:

https://shop.vansaircraft.com/cgi-bi...product=cav110

And ACS, under "Accessories". See Q&A for part no.:

https://www.aircraftspruce.com/catal...faircav110.php

These are good and you'll have all sizes for other things too https://www.harborfreight.com/382-pi...ent-67554.html

I bought mine at the local car parts place, O'Reillys.

Don't waste your time. Just carry a spare drain valve and swap it out. They aren't that expensive, and you can change a valve with full tanks and very little loss. If you had to rebuild the valve (and that's not always possible), you need to remove the valve from the tank anyway.

-Marc

It's a Viton o-ring. You may purchase from Van's or McMaster-Carr carries them also...part #9464K11 but they come in packs of 100 for $5.70

Tip for changing fuel drain O-Ring
 

The first time I went to change the O-Ring on the fuel drain, it was a pain trying to keep pressure on the drain to remove and install the O-Ring.

I got a little 1/16" diameter finishing nail, pushed the fuel drain open, then interested the little nail through the inside drain hole. This held the drain open to remove the old O-Ring and install the new O-Ring.

Just replace one this morning. I read elsewhere in another thread to torque to 70 in lbs. That is way too much. I just put a bit of EZ Turn (Fuelube) on the threads, inserted to finger tight, then turned it in 1.5 to 2 turns. Maybe 10 in lbs at the most.

Gosh, Gary, that?s inspired! Here I thought it was so smart holding the valve in a pair of Cleco pliers. I?d read that trick here in VAF, too.

Fuel Drains O'rings
 

Thanks a lot for all the info Gentlemen, I'll try to find some here locally ( I'm in Canada after all :D ) if not I'll get some frome the USA.

Chers

Bruno