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Ken worth
Joined: 01 Mar 2020
Posts: 4
Location: Edmond, Oklahoma
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 Posted: Sat Mar 07, 2020 4:52 pm Post subject: Fuel tank vents |
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Hoping the group.can help me with suggestions on how to properly vent the tanks. I plan to T them together & connect to the filler cap.
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Ken worth
MK3 Classic |
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Ken worth
Joined: 01 Mar 2020
Posts: 4
Location: Edmond, Oklahoma
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| Posted: Sat Mar 07, 2020 4:57 pm Post subject: Re: Fuel tank vents |
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The filler cap.
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Ken worth
MK3 Classic |
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Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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| Posted: Sun Mar 08, 2020 3:56 am Post subject: Re: Fuel tank vents |
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Can you post a picture of how the system fits together? I am not picturing it in my head.
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Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing. |
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Ken worth
Joined: 01 Mar 2020
Posts: 4
Location: Edmond, Oklahoma
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| Posted: Sun Mar 08, 2020 6:10 pm Post subject: Re: Fuel tank vents |
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Richard,
Both fittings will be reduced down & joined to a “T” fitting.
I was uncertain of the vent cap / termination methods.
suggestions welcome.
Thank you
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Ken worth
MK3 Classic |
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Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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| Posted: Tue Mar 10, 2020 4:42 pm Post subject: Re: Fuel tank vents |
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I hate to seem persistently dumb, but can you post a schematic, a detailed explanation, or a picture that shows both tanks and the filling system all in one shot? I went to the West Marine page and found your Perko Gas Fill & Tank Vent assembly that you pictured, I assume that the filler side will go to a T and then fill both tanks at once? Or - ?
I guess the Perko assembly includes a vent function and you are considering tying the two 5-gallon tanks into it? Or - ?
Without having a better concept of what you are thinking of doing & how you plan to do it, it is not possible to be helpful.
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Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing. |
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kenw
Joined: 01 Oct 2015
Posts: 25
Location: Oklahoma City
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| Posted: Sat Mar 21, 2020 10:07 am Post subject: Fuel tank vents |
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Rick,
Please see attached, suggestions are appreciated.!!
The tubing is mock up only...
my concern is attachment to the tank bung - for proper ventilation/evaporation concerns.
Sent from my iPhone
| Quote: | On Mar 10, 2020, at 7:45 PM, Richard Pike <thegreybaron(at)charter.net> wrote:
I hate to seem persistently dumb, but can you post a schematic, a detailed explanation, or a picture that shows both tanks and the filling system all in one shot? I went to the West Marine page and found your Perko Gas Fill & Tank Vent assembly that you pictured, I assume that the filler side will go to a T and then fill both tanks at once? Or - ?
I guess the Perko assembly includes a vent function and you are considering tying the two 5-gallon tanks into it? Or - ?
Without having a better concept of what you are thinking of doing & how you plan to do it, it is not possible to be helpful.
--------
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kolb Firefly Part 103 legal
Kingsport, TN 3TN0
Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=495224#495224
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kenw |
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zeprep251(at)aol.com
Guest
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| Posted: Sun Mar 22, 2020 4:37 am Post subject: Fuel tank vents |
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JBM has fuel resistant tank grommets
Sent from my iPhone
| Quote: | On Mar 21, 2020, at 5:32 PM, worthken67(at)gmail.com wrote:
Rick,
Please see attached, suggestions are appreciated.!!
The tubing is mock up only...
my concern is attachment to the tank bung - for proper ventilation/evaporation concerns.
<image0.jpeg>
<image1.jpeg>
<image2.jpeg>
<image3.jpeg>
Sent from my iPhone
> On Mar 10, 2020, at 7:45 PM, Richard Pike <thegreybaron(at)charter.net> wrote:
>
>
>
> I hate to seem persistently dumb, but can you post a schematic, a detailed explanation, or a picture that shows both tanks and the filling system all in one shot? I went to the West Marine page and found your Perko Gas Fill & Tank Vent assembly that you pictured, I assume that the filler side will go to a T and then fill both tanks at once? Or - ?
> I guess the Perko assembly includes a vent function and you are considering tying the two 5-gallon tanks into it? Or - ?
> Without having a better concept of what you are thinking of doing & how you plan to do it, it is not possible to be helpful.
>
> --------
> Richard Pike
> Kolb MKIII N420P (420ldPoops)
> Kolb Firefly Part 103 legal
> Kingsport, TN 3TN0
>
> Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=495224#495224
>
>
>
>
>
>
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Ducati SS
Joined: 15 Oct 2009
Posts: 93
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| Posted: Sun Mar 22, 2020 12:27 pm Post subject: Re: Fuel tank vents |
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I am only guessing here but I suspect your vent location is in a low pressure area. You may want to do some additional research or contact Kolb. Surely would not want to vent tanks to a low pressure area.
| | - The Matronics Kolb-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:
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Richard Pike
Joined: 09 Jan 2006
Posts: 1671
Location: Blountville, Tennessee
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| Posted: Mon Mar 23, 2020 6:02 am Post subject: Re: Fuel tank vents |
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Ducati SS brings up a good point, and it's not just the low pressure - every time the prop passes the aft end of the fuselage you are going to get a pressure pulse. Have no guess as to what that may or may not do.
| | - The Matronics Kolb-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:
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_________________
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Forgiving is tough, being forgiven is wonderful, and God's grace really is amazing. |
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George Alexander
Joined: 10 Jan 2006
Posts: 245
Location: SW Florida
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| Posted: Mon Mar 23, 2020 6:19 am Post subject: Re: Fuel tank vents |
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| Ken worth wrote: | | Hoping the group.can help me with suggestions on how to properly vent the tanks. I plan to T them together & connect to the filler cap. |
I was told and have followed the practice on several aircraft, to run the open end of the vent line to a point that is lower than the bottom of the tank(s). I run mine down along side the tanks to a point below the pan that the tanks sit on. The theory being that if you are unfortunate enough to wind up inverted on the ground, the fuel will not run out through the vent line.
As Beauford would say... worth what you paid for it....
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George Alexander
FS II R503
E-LSA N709FS
http://www.oh2fly.net |
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