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03-16-2011, 01:41 PM
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Join Date: Dec 2010
Location: Greeley, Colorado
Posts: 199
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Slosh tank Proseal
I'm still getting to know my 1999 RV6A. It's tanks were sealed by the old Proseal slosh method. I can see that several large pieces are starting to flake off the ribs near the fuel filler opening. Does it make sense to try and remove the peel I can get to or is this a losing battle? There are 740 hours on the plane and I'm wondering what risk I'm running with the tanks in this condition? The fuel gauge senders were inadvertantly 'sealed' in place and have never worked.
__________________
John D. Artz, EAA 71811, 100+ Young Eagle flts
Adopted Dave's 6A
MXL Ultralight, only bleeding after 3 landings
Scorpion Two Helicopter, big mistake
PA-28 and 210E Centurion
Last edited by Cadstat : 03-16-2011 at 01:55 PM.
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03-16-2011, 01:57 PM
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Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,840
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I hate to say this...
...but a new pair of tanks is in order! There's no way to get to all the slosh to remove it. Well, maybe drill the back of the tanks off might give you the access you need.
A new pair of tanks is really not a biggie.
Best,
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Pierre Smith
RV-10, 510 TT
RV6A (Sojourner) 180 HP, Catto 3 Bl (502Hrs), gone...and already missed
Air Tractor AT 502B PT 6-15 Sold
Air Tractor 402 PT-6-20 Sold
EAA Flight Advisor/CFI/Tech Counselor
Louisville, Ga
It's never skill or craftsmanship that completes airplanes, it's the will to do so,
Patrick Kenny, EAA 275132
Dues gladly paid!
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03-16-2011, 02:28 PM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,761
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First off, I can't imagine anyone sloshing tanks in 1999.
The slosh problem was discovered looooong before that.
Removing the slosh is not a big deal. It's not exactly fun, but it's not that bad. Cut a hole in the rear baffle at each except the most inboard. You can remove the slosh with MEK. Then install cover-plates over the holes. We've done quite a few without a problem.
If you don't want to do it yourself, the Hotel/Whiskey guys will do it for a nominal charge. They are the guys that build the extended range tanks for RVs.
__________________
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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03-16-2011, 02:28 PM
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Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
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Creating large access panels in the rear flange for access will help.
The white slosh can be cleaned with MEK and a stiff brush (all the usual precautions needed) - it's a slow process but does work.
IMHO the slosh peeling off is quite a hazard - unlike dirt bits, the loose sheets of slosh could clog up filters and block ports much quicker and easier.... 
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Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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03-16-2011, 02:30 PM
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Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
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Quote:
Originally Posted by Mel
First off, I can't imagine anyone sloshing tanks in 1999.
The slosh problem was discovered looooong before that.
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Mel, if 1999 was the first flight, the tanks were probably built well before that.
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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03-16-2011, 02:43 PM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,761
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Quote:
Originally Posted by az_gila
Mel, if 1999 was the first flight, the tanks were probably built well before that.
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Yeah, you're probably right. My loooong term memory ain't what it used to be.
As a matter of fact, I'm not even sure it used to be!
__________________
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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03-16-2011, 03:46 PM
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Join Date: Mar 2007
Location: Mobile AL
Posts: 12
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Speaking of fuel tanks I thought I saw somewhere awhile back where you could buy pre built tanks(RV9) but can't seem to find it now, am I just over looking it or cans someone point me in the right direction. Thanks
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03-16-2011, 04:20 PM
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Join Date: Dec 2006
Location: Montana
Posts: 67
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Would you be talking about this?
On another note, how can the words proseal and slosh be used in the same sentence? I don't have much experience with proseal, but I can't imagine being able to slosh it.
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D.J. Roberts
RV-9
Empenage Finished
Wings Finished
Working on Fuselage
My blog
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03-16-2011, 04:31 PM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,761
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Hey Guys.......
If you can build an airplane, you can build a couple of fuel tanks!
They aren't that bad.
__________________
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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03-17-2011, 02:06 PM
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Join Date: Dec 2010
Location: Greeley, Colorado
Posts: 199
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Tank builders
mailto:evmeg@snowcrest.net
Try this guy for tank building.
__________________
John D. Artz, EAA 71811, 100+ Young Eagle flts
Adopted Dave's 6A
MXL Ultralight, only bleeding after 3 landings
Scorpion Two Helicopter, big mistake
PA-28 and 210E Centurion
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