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jonboede(at)hotmail.com
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 Posted: Fri Jan 13, 2023 10:37 pm Post subject: central tank fuel drain question |
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I've looked in the parts catalogs for the CJ and haven't found one that shows the bottom of the central fuel collection tank.
On the bottom of that tank there's a cap with a 36mm nut and through the center of that nut is a 15-20mm drain device, the top of which presses against the hole in the bottom of the central tank.
On my tank that drain device is metal-on-metal with the central tank.
I strongly suspect that there was some kind of gasket or rubber washer between the drain device and the central tank.
Any ideas on what material that gasket/washer should be? Or what I should replace it with? Cork? Rubber? I'm thinking I can go with a 1-2mm Neoprene washer, or some of that blue gasket 1/16". Which would be a better material?
Thanks,
Jon
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Mark Pennington
Joined: 18 Jul 2022
Posts: 11
Location: Richmond Virginia
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| Posted: Sat Jan 14, 2023 1:38 am Post subject: central tank fuel drain question |
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Jon
You are correct there is a round gasket in the bottom of the consumption tank. When I went through mine I got a new one from Doug.Â
I would reach out to Carl who has the parts business now. I am sure be has one.  If not you cut one from any suitable material for AV gas. Â
I put a photo of my old one as I removed it from the tank. You can download it and blow it up to see the thickness. It is pretty thick.Â
Mark Pennington
N621CJ
[img]cid:185afa1e290c47b222f1[/img]
On Sat, Jan 14, 2023 at 1:41 AM Jon Boede <jonboede(at)hotmail.com (jonboede(at)hotmail.com)> wrote:
| Quote: | I've looked in the parts catalogs for the CJ and haven't found one that shows the bottom of the central fuel collection tank.
On the bottom of that tank there's a cap with a 36mm nut and through the center of that nut is a 15-20mm drain device, the top of which presses against the hole in the bottom of the central tank.
On my tank that drain device is metal-on-metal with the central tank.
I strongly suspect that there was some kind of gasket or rubber washer between the drain device and the central tank.
Any ideas on what material that gasket/washer should be? Or what I should replace it with? Cork? Rubber? I'm thinking I can go with a 1-2mm Neoprene washer, or some of that blue gasket 1/16". Which would be a better material?
Thanks,
Jon
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Replied from my iPhone. Please excuse brevity any typos in the content
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Responding from my iPhone, please disregard any typos. |
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Ttail
Joined: 24 Jun 2013
Posts: 120
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| Posted: Sat Jan 14, 2023 12:49 pm Post subject: Re: central tank fuel drain question |
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Another view.
I got one of these gaskets from Doug a while ago. Yet to be installed. Next visit to the hangar I will measure it.
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Sean Trestrail
ttail[at]internode.on.net |
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Ttail
Joined: 24 Jun 2013
Posts: 120
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| Posted: Sun Jan 15, 2023 8:43 pm Post subject: Re: central tank fuel drain question |
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Images of a new Fuel tank Drain gasket.
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Sean Trestrail
ttail[at]internode.on.net |
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