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deadaheadub
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Joined: April 18, 2004
Posts: 787
Location: New Mexico
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 Posted: Mon Feb 22, 2021 11:36 am Post subject: What is the plastic tank below drivers seat in the wheel well? |
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What is the small plastic (expansion?) tank that sits below the drivers' seat right next to the nut for the seat belt bolt that sits on the wheel well? I want to put a backing plate down there for the rusted area around the seat belt nut under there. An '84 Westy.
thanks
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Ryan
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Past loves: '65 Bug, '70 Westy poptop, '64 Squareback project, '76 Westy tintop "Loose Lucy", '76 Westy tintop "Sharee"
Current:'84 Westy poptop "Ramblin' Rose- Rosie" w/ 2003 Subaru EJ25 conversion |
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revolution337
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Joined: May 23, 2009
Posts: 372
Location: Pennsylvania
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| Posted: Mon Feb 22, 2021 11:38 am Post subject: Re: What is the plastic tank below drivers seat in the wheel well? |
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They are the expansion tanks for the fuel tank venting system.
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1982 Westfalia AEB 1.8t
2017 VW Golf Sportwagen
2001 Audi A4 4.2 V8 swapped
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deadaheadub
Samba Member
Joined: April 18, 2004
Posts: 787
Location: New Mexico
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| Posted: Mon Feb 22, 2021 11:39 am Post subject: Re: What is the plastic tank below drivers seat in the wheel well? |
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Thanks for your prompt reply!
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Grateful daily,
Ryan
______________________________________
Past loves: '65 Bug, '70 Westy poptop, '64 Squareback project, '76 Westy tintop "Loose Lucy", '76 Westy tintop "Sharee"
Current:'84 Westy poptop "Ramblin' Rose- Rosie" w/ 2003 Subaru EJ25 conversion |
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MarkWard
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Joined: February 09, 2005
Posts: 17154
Location: Retired South Florida
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| Posted: Mon Feb 22, 2021 11:42 am Post subject: Re: What is the plastic tank below drivers seat in the wheel well? |
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Should be one on each side 2wd. Always best to drop them down to check the vent grommets. They drop out fairly easily. Going back in, you really need to wire brush the cavity in the fender where the tank seats. Some silicone spray and patience. Do not try to pull the hoses off or use a cut off wheel to cut the small clamp. Sharp side cutters for the clamps and a razor blade to split the hose. The nipples are way to easy to break or melt.
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deadaheadub
Samba Member
Joined: April 18, 2004
Posts: 787
Location: New Mexico
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| Posted: Mon Feb 22, 2021 12:37 pm Post subject: Re: What is the plastic tank below drivers seat in the wheel well? |
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| MarkWard wrote: |
| Should be one on each side 2wd. Always best to drop them down to check the vent grommets. They drop out fairly easily. Going back in, you really need to wire brush the cavity in the fender where the tank seats. Some silicone spray and patience. Do not try to pull the hoses off or use a cut off wheel to cut the small clamp. Sharp side cutters for the clamps and a razor blade to split the hose. The nipples are way to easy to break or melt. |
So I need to cut the clamps?
Why do I split the hose? So I can see if the vents are clear and not clogged?
Sorry for not getting the big picture of what I'm going to do here.
Thanks, Mark
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Grateful daily,
Ryan
______________________________________
Past loves: '65 Bug, '70 Westy poptop, '64 Squareback project, '76 Westy tintop "Loose Lucy", '76 Westy tintop "Sharee"
Current:'84 Westy poptop "Ramblin' Rose- Rosie" w/ 2003 Subaru EJ25 conversion |
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bobhill8
Samba Member
Joined: June 09, 2017
Posts: 737
Location: MA
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| Posted: Mon Feb 22, 2021 12:37 pm Post subject: Re: What is the plastic tank below drivers seat in the wheel well? |
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Lots of good threads on these tanks. Here is one to start:
https://www.thesamba.com/vw/forum/viewtopic.php?t=631085
It is complete with sarcastic comments and controversy! |
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dobryan
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Joined: March 24, 2006
Posts: 16505
Location: Brookeville, MD
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deadaheadub
Samba Member
Joined: April 18, 2004
Posts: 787
Location: New Mexico
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| Posted: Mon Feb 22, 2021 2:00 pm Post subject: Re: What is the plastic tank below drivers seat in the wheel well? |
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Excellent. Thanks for all your comments and suggestions.
_________________
Grateful daily,
Ryan
______________________________________
Past loves: '65 Bug, '70 Westy poptop, '64 Squareback project, '76 Westy tintop "Loose Lucy", '76 Westy tintop "Sharee"
Current:'84 Westy poptop "Ramblin' Rose- Rosie" w/ 2003 Subaru EJ25 conversion |
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 17154
Location: Retired South Florida
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| Posted: Mon Feb 22, 2021 2:09 pm Post subject: Re: What is the plastic tank below drivers seat in the wheel well? |
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If you are dropping it out of the way, you can leave the bottom hoses attached. If you find the top grommet has failed. It’s best to completely remove the tank and wash the inside with soap and water.
Main goal is to not damage the little plastic hose barbs at the bottom. If you are welding, those tanks are connected directly to the top of the gas tank and could be full of fuel vapors. That can get exciting if you introduce a spark.
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