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willysmjeeps.com :: View topic - Fuel pump plumbing
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Fuel pump plumbing

 
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Mjfire1949
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Joined: May 12, 2014
Posts: 47
Location: Frisco, Texas

PostPosted: Sun Jun 22, 2014 12:25 pm    Post subject: Fuel pump plumbing Reply with quote

Does anyone have a pic showing which inlets and outlets are for fuel and which are vent lines on a M38 dual action fuel pump? I'm replacing the single action fuel pump with the original dual action pump. I think I've got it plumbed right, but I'd like to double check it.
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evanso1975
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Joined: May 10, 2010
Posts: 615
Location: North Yorkshire, UK

PostPosted: Sun Jun 22, 2014 1:02 pm    Post subject: Reply with quote

Vac lines in the bottom, fuel lines in the top.
Try this, courtesy of Wes's photo album:

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Owen

1951 US Air Force M38
1944 F-1 1/2-ton Airdrome Trailer
1940 C15 Chevrolet CMP 11-cab
1939 DKW KS200 Motorcycle
MVT # 19406
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wesk
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Joined: Apr 04, 2005
Posts: 16253
Location: Wisconsin

PostPosted: Sun Jun 22, 2014 1:40 pm    Post subject: Reply with quote

When you ask a technical question always tell us what model jeep you are working on. An easy way to make this happen without any conscious effort is to add your jeep year make & model to your signature block. While you are in there updating your profile fill in your location block so when you do have problems folks can see where you are and quite often you gain new freinds willing to help you out locally.

The illustration used above is for the 52 M38's and, with the addition of the handle for priming the carb, the very early 52/53 M38A1's that left Willys with all the fording system basic plumbing. Many earlier M38's and later A1's were modified in the field for that setup. The USMC contracts in the 60's also had the copmplete fording system basic plumbing.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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Mjfire1949
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Joined: May 12, 2014
Posts: 47
Location: Frisco, Texas

PostPosted: Sun Jun 22, 2014 5:07 pm    Post subject: Reply with quote

Thanks Wes. I will update my profile as you suggested
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