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  #1  
Old 04-23-2020, 10:12 PM
RV-4 RV-4 is offline
 
Join Date: Oct 2007
Location: St-Jerome,Quebec,Canada
Posts: 1,171
Question 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
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  #2  
Old 04-23-2020, 10:39 PM
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Pilot135pd Pilot135pd is offline
 
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Location: Vaca Moo Airport - TA37 in East TEXAS
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These are good and you'll have all sizes for other things too https://www.harborfreight.com/382-pi...ent-67554.html
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Sadly sold my RV-8 N52VM however I'm still trying to enjoy life by creating an airport with FREE campsites for pilots to come visit www.facebook.com/VacaMooAirport/ WHILE WAITING FOR THE HIGH WING RV15 !

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  #3  
Old 04-24-2020, 07:51 AM
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D Weisgerber D Weisgerber is offline
 
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Location: Ionia Michigan
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I bought mine at the local car parts place, O'Reillys.
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  #4  
Old 04-24-2020, 07:57 AM
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Plummit Plummit is offline
 
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Location: SoCal
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Quote:
Originally Posted by RV-4 View Post
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
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
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  #5  
Old 04-24-2020, 09:33 AM
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avrojockey avrojockey is offline
 
Join Date: Aug 2019
Location: Appleton, WI
Posts: 351
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Quote:
Originally Posted by RV-4 View Post
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
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
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  #6  
Old 04-24-2020, 10:27 AM
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RV6_flyer RV6_flyer is offline
 
Join Date: Jan 2005
Location: NC25
Posts: 3,636
Default 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.

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NC25 RV-6
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  #7  
Old 04-24-2020, 02:01 PM
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plehrke plehrke is offline
 
Join Date: Sep 2006
Location: Defiance, MO
Posts: 1,756
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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.
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  #8  
Old 04-24-2020, 06:19 PM
JDeanda JDeanda is offline
 
Join Date: Apr 2013
Location: Ventura, CA
Posts: 234
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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.
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  #9  
Old 04-24-2020, 09:03 PM
RV-4 RV-4 is offline
 
Join Date: Oct 2007
Location: St-Jerome,Quebec,Canada
Posts: 1,171
Thumbs up 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 ) if not I'll get some frome the USA.

Chers

Bruno
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  #10  
Old 04-25-2020, 12:52 AM
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DrillBit DrillBit is offline
 
Join Date: Nov 2007
Location: Pleasanton, CA
Posts: 204
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Another tip for near zero gas loss when changing the drain on a less than empty tank: put a short rubber tune over the vent line sticking out the bottom of the fuselage and pinch off the other end with a spring clamp. This is the ONLY time you want to stop fuel flowing from the tank due to a blocked vent!

This is probably completely obvious to most VAF folks, but I don't remember reading it in the 13 odd years I took for my ultra slow build. You can imagine what happens when you take the drain out, take a little more time than you thought it would take to put one thumb over the hole...and discover the replacement drain is juuuuuuuuuust out of reach of your other hand.

I heard it from a friend.
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P-town, CA (10 min from KLVK!)
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VAF dues last paid 30 Dec 2020

Last edited by DrillBit : 04-25-2020 at 12:53 AM. Reason: Typo
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