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05-31-2019, 06:16 PM
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#1
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Rivet Master  
1982 28' Airstream 280
Port Angeles
, Washington
Join Date: Aug 2008
Posts: 1,943
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345 fuel tank
As I understand the 345 has a 80 gallon fuel tank. I happened to be under mine and took a tape measure to the tank. It measures 60" long x 28 1/4" wide x 14 1/4" high. If I subtract 3/4" for the flange on each end my calculator calls this 23,550 cubic inches which 100+ gallons. Am I doing something wrong or is this an oversize tank?
__________________
Cheers, Dan
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"Socialist governments traditionally do make a financial mess. They always run out of other people's money. It's quite a characteristic of them."
~ Margaret Thatcher ~
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05-31-2019, 07:01 PM
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#2
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Rivet Master
2005 34' Classic S/O
2006 39' Land Yacht 396 XL
north blenheim
, New York
Join Date: Sep 2012
Posts: 2,847
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Mine measures the same on the 325LE and the 370LE..... let me know how to put 100 gallons into it....I've filled them both up numerous times.....I think your data or calculator are wrong or broken.....Regards, Bob
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05-31-2019, 07:55 PM
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#3
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Rivet Master
1982 28' Airstream 280
Port Angeles
, Washington
Join Date: Aug 2008
Posts: 1,943
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Well I have checked my numbers a couple of times but I didn't subtract for the radius on the corners. I would not have thought the corner radius would make up 20% of the volume but if yours is the same size I guess it must.
My gauge doesn't really work, it kind of bounced between 3/4 and 7/8 and I put 35 gallons in it. I have only fueled it twice and I wanted to run it down more to see what the gauge did if anything but didn't want to get too low. Knowing it is 80 gallons makes that easier. Thanks
__________________
Cheers, Dan
________________________________________
"Socialist governments traditionally do make a financial mess. They always run out of other people's money. It's quite a characteristic of them."
~ Margaret Thatcher ~
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05-31-2019, 10:15 PM
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#4
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Dazed and Confused
Currently Looking...
1983 31' Airstream310
Hillsburgh
, Ontario
Join Date: Sep 2012
Posts: 3,805
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It's amazing, that at our age, driving a Class A motorhome .....pee stops are more important than pump stops 
Can't do that in a gasser. 
Cheers
Sidekick Tony
__________________
Per Mare, Per Terram and may all your campaigns be successful.
“It’s a recession when your neighbor loses his job; it’s a depression when you lose your own.” "Harry S Truman"
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05-31-2019, 11:13 PM
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#5
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4 Rivet Member 
1965 22' Safari
1987 34.5' Airstream 345
Kansas city
, Missouri
Join Date: Jun 2011
Posts: 443
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I don’t worry about it until the gauge stops wiggling....
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06-01-2019, 12:53 AM
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#6
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Rivet Master
1982 28' Airstream 280
Port Angeles
, Washington
Join Date: Aug 2008
Posts: 1,943
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That's why I don't drink and drive Tony, too many pee stops.
Kreimer I used to think like that but I'm getting too old to push this damn thing. 
__________________
Cheers, Dan
________________________________________
"Socialist governments traditionally do make a financial mess. They always run out of other people's money. It's quite a characteristic of them."
~ Margaret Thatcher ~
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06-01-2019, 05:07 AM
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#7
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4 Rivet Member
1986 34.5' Airstream 345
Londonderry
, New Hampshire
Join Date: Mar 2017
Posts: 287
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The dip tube does not go to the bottom of the tank so as to not
suck up all of the crud that collects down there. Perhaps that
accounts for the missing 20 gallons.
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