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07-30-2015, 09:38 AM
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Join Date: Feb 2014
Location: Ft Myers, Florida KFMY
Posts: 145
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Water in fuel somewhere-interesting ride this AM
I went up in RV 12 that has been sitting in Florida for a few months (Its a long story).
Removed 2 l/2 tubes of water from sump and then tried to fly.
But she sputtered so we aborted the flight. (me and CFI Rhonda Colburn-a wonderful person and CFI).
So I did another drain underneath at the sump.
We went up with nose up and she balked. Would not get to more than 4400.
I and she heard a 'bang'.
I gave her the plane and she got us back on the ground.
We noticed that when nose is down she shoots to 5500. We did 5500 on final.
When nose pushed up, then sputters and gets down into the 4400's.
Once on the ground I did another fuel check and found nasty brown stuff (NOT much) on the bottom of the tube.
I have 2 a and p men working on it Saturday.
What do you think?
Picture of W.S. in N262WS
Last edited by danielabernath : 07-30-2015 at 09:41 AM.
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07-30-2015, 09:53 AM
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Join Date: Apr 2014
Location: Port Orange, Fl
Posts: 931
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I guess I'd suspect water in the tank. If it were me, I'd hold the tail down, turn on the electric pump and drain out of the gascolator until empty.
__________________
Tom
Port Orange, Fl
EAA #51411
RV-12 N121TK ELSA #120845; first flight 06/10/2015; 700 hrs as of 02/2020
RV-12 N918EN ELSA #120995 Eagles Nest Project; first flight 05/18/2019
SPA Panther N26TK; First Flight 03/13/2020
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07-30-2015, 10:17 AM
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Join Date: Oct 2010
Location: La Feria Texas
Posts: 3,822
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By holding the tail down, the water would all run to the rear of the tank and hide there. Not sure why you would want to do that. Seems like lifting UP on the tail would be better for getting the water out.
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07-30-2015, 10:21 AM
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Join Date: Oct 2005
Location: Estes Park, CO
Posts: 3,931
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Stale gas
Maybe it's not just water. Gas gets pretty funky when it sits too long. 3 months is usually not long enough, but you shouldn't get brown stuff. Stale gas stinks too. Easy to identlfy.
Sound like a carb cleaning is due as well.
__________________
Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 12/03/2019, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
HS SB, empennage, tanks, wings, fuse, working finishing kit
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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07-30-2015, 10:25 AM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
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You didn't say what kind of fuel. Auto or aviation. Aviation fuel holds up quite well for several months and even years. Auto fuel, not so much.
I would suggest draining the entire system and flushing out lines, then refill with fresh, or at the very least, filtered fuel.
__________________
Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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07-30-2015, 10:46 AM
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Join Date: Feb 2014
Location: Ft Myers, Florida KFMY
Posts: 145
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It is auto fuel. Smells like auto fuel when in tube (and spills on my arm)
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07-30-2015, 10:50 AM
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Join Date: Apr 2014
Location: Port Orange, Fl
Posts: 931
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Quote:
Originally Posted by DonFromTX
By holding the tail down, the water would all run to the rear of the tank and hide there. Not sure why you would want to do that. Seems like lifting UP on the tail would be better for getting the water out.
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Ooops, yeah my mistake. I was thinking the outlet was at the rear but, you're right, I had it backwards.
__________________
Tom
Port Orange, Fl
EAA #51411
RV-12 N121TK ELSA #120845; first flight 06/10/2015; 700 hrs as of 02/2020
RV-12 N918EN ELSA #120995 Eagles Nest Project; first flight 05/18/2019
SPA Panther N26TK; First Flight 03/13/2020
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07-30-2015, 11:00 AM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
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Quote:
Originally Posted by danielabernath
It is auto fuel. Smells like auto fuel when in tube (and spills on my arm)
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In that case, I would drain and flush the system, filter the fuel and put it in my car mixing a little at a time with fresh fuel.
Put fresh fuel fuel in the aircraft.
__________________
Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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07-30-2015, 11:07 AM
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Senior Curmudgeon
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 15,408
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Auto fuel most likely has some alcohol in it--------and water and alcohol mix rather well.
I second Mel's advice----------drain, flush, and refill.
__________________
Mike Starkey
VAF 909
Rv-10, N210LM.
Flying as of 12/4/2010 
Phase 1 done, 2/4/2011
Sold after 240+ wonderful hours of flight.
"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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07-30-2015, 11:10 AM
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Join Date: Oct 2010
Location: La Feria Texas
Posts: 3,822
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100ll goes to heck also. I had my Ercoupe sitting in a closed very hot hangar for several months, and it would just barely run after sitting that long. I mixed a lot of fresh 100ll with it and it decided to fly at least, still not too happy.
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