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AZFlyer
Joined: 11 Jan 2006
Posts: 89
Location: Prescott, AZ
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 Posted: Thu Mar 25, 2010 11:16 am Post subject: Fuel tank filler |
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When removing the fuel tanks, (for upgrade work), I found the sealant I used when originally building wings made removal of threaded cap very difficult. My question is two-fold: 1. Do we need to use sealant on these "fine" threads? and if so, 2. What sealants (by Brand and Model) are you using?
Seems to me we should use a sealant that does not harden over time in case we need to get to fuel tank in the future.
Thanks in advance for feedback.
Mike
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Mike Miller @ millrml@aol.com
601 XL-B, 3300, Dynon
Remember, "the second mouse gets the cheese"! |
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DaveG601XL
Joined: 27 Oct 2006
Posts: 351
Location: Cincinnati, Oh
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| Posted: Thu Mar 25, 2010 11:35 am Post subject: Re: Fuel tank filler |
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Mike,
I had the same problem, to the point that I had to cut one of the filler necks out. I used Permatex "non-hardening" gasket sealer and it got pretty hard. Going back in, I still thought I should put something on there so I just put a few threads worth. I guess I will find out the next time I have to remove the nose skins.
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David Gallagher
Cincinnati, OH area |
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psm(at)att.net
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| Posted: Thu Mar 25, 2010 12:21 pm Post subject: Fuel tank filler |
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Hi Mike,
First a disclaimer - my plane hasn't flown yet. I'm still installing the
upgrade.
Now for the fuel filler. I don't think any sealant is necessary for the
fuel filler. So long as it is tight enough that the airflow over the cap
doesn't suck out fuel it should be fine. Remember gravity will keep the
fuel from flowing out of the top of the tank.
On my plane there is a tight fit between the skin and the top of the filler
tube. This makes a nice flush surface for the air to flow across the top of
the wing.
Paul
XL - installing upgrade.
--
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NYTerminat(at)aol.com
Guest
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| Posted: Thu Mar 25, 2010 3:34 pm Post subject: Fuel tank filler |
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Mike,
Use "Fuel lube " or "EZ" Turn from Aircraft Spruce
Bob Spudis
N701ZX CH701
In a message dated 3/25/2010 3:17:39 P.M. Eastern Daylight Time, millrML(at)AOL.com writes:
| Quote: | When removing the fuel tanks, (for upgrade work), I found the sealant I used when originally building wings made removal of threaded cap very difficult. My question is two-fold: 1. Do we need to use sealant on these "fine" threads? and if so, 2. What sealants (by Brand and Model) are you using?
Seems to me we should use a sealant that does not harden over time in case we need to get to fuel tank in the future.
Thanks in advance for feedback.
Mike
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[quote][b]
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Ron Lendon
Joined: 10 Jan 2006
Posts: 685
Location: Clinton Twp., MI
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| Posted: Thu Mar 25, 2010 6:43 pm Post subject: Re: Fuel tank filler |
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| NYTerminat(at)aol.com wrote: | Mike,
Use "Fuel lube " or "EZ" Turn from Aircraft Spruce
Bob Spudis
N701ZX CH701
In a message dated 3/25/2010 3:17:39 P.M. Eastern Daylight Time, millrML(at)AOL.com writes:
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Yeah what he said!
It took 3 people 1.5 hours to loosen the fuel tank filler from the CZAW XL we are doing the upgrade on. I had to request the big tap from Zenith to clean up the threads then used FueLube on it and the fuel strainer fittings. It never hardens and is designed for this purpose. I am quite confident it will stay sealed and be easy to remove later.
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_________________
Ron Lendon
WW Corvair with Roy's Garage 5th bearing
CH 601 XLB
N601LT - Flying
http://www.mykitlog.com/rlendon
Corvair Engine Prints:
https://sites.google.com/site/corvairenginedata/ |
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AZFlyer
Joined: 11 Jan 2006
Posts: 89
Location: Prescott, AZ
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| Posted: Fri Mar 26, 2010 6:11 am Post subject: Re: Fuel tank filler |
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EZ Turn definitely sounds like the ticket...I'll order some today. Thanks for the heads up.
Mike
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Mike Miller @ millrml@aol.com
601 XL-B, 3300, Dynon
Remember, "the second mouse gets the cheese"! |
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