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Scooter
Joined: 10 Jan 2006
Posts: 155
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 Posted: Tue May 09, 2006 5:58 pm Post subject: Siphoning gas |
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I think this might have come up before on this list. Went out to the hangar today and smelled fuel before i opened it. Turns out i had a puddle of fuel on the ground under the center "vent". It had come from the left tank and when i opened the cap i could hear the pressure release (vacuum inside). Seems like I lost possibly a gallon or two. Any ideas? The tanks were almost topped off when i put it away last week.
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viperdoc(at)mindspring.co
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| Posted: Tue May 09, 2006 7:55 pm Post subject: Siphoning gas |
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Scooter,
Sounds like a case of vaporizaion and venting. If you are going to top off
your tanks and then put it up in a warm hanger, the YAK is notorious for
venting fuel. Two choices, uncap you tanks to break the seal. Obviously
leave the fuel caps on the mouth of the tank but loose where it will vent.
Another way to remind yourself the you fuel caps are loose is to take the
cover off the wing and turn it 90 degrees out.
The other choice you have is to not top off your tanks when you put it up.
That is assuming you have the standard Russian fuel tanks with the tank
covers (? for lack of anything else to call them?).
Doc
| Quote: | [Original Message]
From: Scooter <yakk52(at)verizon.net>
To: <yak-list(at)matronics.com>
Date: 5/9/2006 9:08:01 PM
Subject: Siphoning gas
I think this might have come up before on this list. Went out to the
hangar today and smelled fuel before i opened it. Turns out i had a puddle
|
of fuel on the ground under the center "vent". It had come from the left
tank and when i opened the cap i could hear the pressure release (vacuum
inside). Seems like I lost possibly a gallon or two. Any ideas? The
tanks were almost topped off when i put it away last week.
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pa3arw(at)euronet.nl
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| Posted: Tue May 09, 2006 11:58 pm Post subject: Siphoning gas |
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What I have seen also is a little 6 mm screw with an o-ring underneath it in
the cap of the tank. When the Yak is parked in the hangar you just remove
the screw and you have no pressure built up in the tank anymore. Put a
"remove before flight" sign on it and also take it up in the external
checklist and you will not forget to put the screws back in again before
flight.
Hans
Dutch Yak Pilot
-----Oorspronkelijk bericht-----
Van: owner-yak-list-server(at)matronics.com
[mailto:owner-yak-list-server(at)matronics.com] Namens Roger Kemp
Verzonden: woensdag 10 mei 2006 5:54
Aan: yak-list(at)matronics.com
Onderwerp: RE: Siphoning gas
Scooter,
Sounds like a case of vaporizaion and venting. If you are going to top off
your tanks and then put it up in a warm hanger, the YAK is notorious for
venting fuel. Two choices, uncap you tanks to break the seal. Obviously
leave the fuel caps on the mouth of the tank but loose where it will vent.
Another way to remind yourself the you fuel caps are loose is to take the
cover off the wing and turn it 90 degrees out.
The other choice you have is to not top off your tanks when you put it up.
That is assuming you have the standard Russian fuel tanks with the tank
covers (? for lack of anything else to call them?).
Doc
| Quote: | [Original Message]
From: Scooter <yakk52(at)verizon.net>
To: <yak-list(at)matronics.com>
Date: 5/9/2006 9:08:01 PM
Subject: Siphoning gas
I think this might have come up before on this list. Went out to the
hangar today and smelled fuel before i opened it. Turns out i had a puddle
|
of fuel on the ground under the center "vent". It had come from the left
tank and when i opened the cap i could hear the pressure release (vacuum
inside). Seems like I lost possibly a gallon or two. Any ideas? The
tanks were almost topped off when i put it away last week.
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
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Scooter
Joined: 10 Jan 2006
Posts: 155
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| Posted: Wed May 10, 2006 3:56 am Post subject: Re: Siphoning gas |
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Thanks everyone for the advice on the fuel siphoning. Good to know it's normal. I've also enjoyed all the video.
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
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