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Gas cap fitment issue. |
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kansascat 
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Joined: 23 Aug. 2012 Location: s. central ks Status: Offline Points: 372 |
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 Topic: Gas cap fitment issue.Posted: 28 Mar. 2023 at 12:55am |
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Anyone know of a gas cap that is slightly larger in diameter then whats listed as fitting a cj2a tank? Ive got a 8 year old repop under seat tank and lost the gas cap and every cap the parts store has said is listed as fitting is just small enough dia that the ears wont properly engage to where it will tighten up and stay on. Needing to know what vehicle to tell the parts counter guy i need a cap for thats just a bit bigger dia. The caps they sell me do fit my 55 willys pickups tank, but not this old repop tank. Thx
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So many projects and so little time.
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Lee MN
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Joined: 13 Aug. 2008 Location: Harris, MN Status: Offline Points: 4520 |
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Posted: 28 Mar. 2023 at 8:54am |
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I purchased one from Walcks that fit well.
Lee 
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LEE
44 GPW-The Perfected Willys 49 2A “If you wait, you only get older” 67 M715 American Made Rolling History |
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47 deuce alpha
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Joined: 07 Aug. 2017 Location: Midland Texas Status: Offline Points: 611 |
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Posted: 28 Mar. 2023 at 3:49pm |
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Same problem, I recently put in a new gas tank, ordered a gas cap from QTM, it would start but I had to use an oil filter wrench to tighten down all the way. Hope it loosens up with use.
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1947 CJ2A 90419
1947 CJ2A 127735 1949 Ford 8N 1955 Kaiser Willys Pickup Half the distance takes you twice as long. |
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kansascat
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Joined: 23 Aug. 2012 Location: s. central ks Status: Offline Points: 372 |
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Posted: 28 Mar. 2023 at 9:53pm |
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My issue is the opposite..mine wont engage and tighten up. The ears on the caps im beimg told should fit are 1 7/8" wide but the filler neck needs one with ears 2 1/8 wide.
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So many projects and so little time.
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Mark W.
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Sponsor Member Joined: 09 Nov. 2014 Location: Silverton, OR Status: Offline Points: 7525 |
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Posted: 29 Mar. 2023 at 4:54pm |
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how big is a M38 cap they have a bigger neck.
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Chug A Lug
1948 2A Body Customized 1949 3A W/S 1957 CJ5 Frame Modified Late 50's 134L 9.25"clutch T90A D18 (1.25") D44/30 flanged E-Locker D25 5.38 Since 1962 |
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Tom in RI
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Joined: 07 May 2009 Location: RI Status: Offline Points: 1007 |
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Posted: 30 Mar. 2023 at 8:39am |
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M38 cap is 4.25”. Too large for the 2A
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Jeff J
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Joined: 12 Mar. 2018 Location: USA Status: Offline Points: 349 |
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Posted: 31 Mar. 2023 at 9:58am |
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How about an early tractor fuel cap. Maybe from a John Deere A or B.
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Jeff J
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Joined: 12 Mar. 2018 Location: USA Status: Offline Points: 349 |
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Posted: 31 Mar. 2023 at 3:47pm |
 
No idea what this cap was on originally but it fits my jeep. I have another cap that fits it but I am using it on an airplane. If the tank came from KW then they should have a cap that fits it. The cap pictured came from my CJ2A. The tank it lives on is actually installed in my CJ3A which came from KW. I don’t know the history of the under seat tank in the CJ2A other than it’s a rusted out mess. I cut the filler neck off an old rusted tank and installed it in an airplane. The CJ2A has an aluminum boat tank where the back seat would be. I need to get that sorted out and back to semi-original.
Edited by Jeff J - 31 Mar. 2023 at 4:01pm |
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47 deuce alpha
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Joined: 07 Aug. 2017 Location: Midland Texas Status: Offline Points: 611 |
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Posted: 31 Mar. 2023 at 6:37pm |
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Here’s mine
  
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1947 CJ2A 90419
1947 CJ2A 127735 1949 Ford 8N 1955 Kaiser Willys Pickup Half the distance takes you twice as long. |
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Bruce W
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Joined: 29 July 2005 Location: Northeast Colorado Status: Online Points: 8991 |
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Posted: 31 Mar. 2023 at 8:31pm |
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“If the tank came from KW then they should have a cap that fits it.”
😆🤪😁 Bwaahahahahaaa! BW
Edited by Bruce W - 31 Mar. 2023 at 8:42pm |
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It is NOT a Jeep Willys! It is a Willys jeep.
Happy Trails! Good-bye, Good Luck, and May the Good Lord Take a Likin' to You! We Have Miles to Jeep, Before We Sleep. |
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rocnroll
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Posted: 31 Mar. 2023 at 8:34pm |
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Been waitin' on that one.
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'47 CJ2A PU
'48 CJ2A Lefty "Common sense is not that common" |
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cpt logger
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Joined: 23 Sep. 2012 Location: Western Colorad Status: Offline Points: 2828 |
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Posted: 01 Apr. 2023 at 12:54am |
Me too!
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rocnroll wrote: