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Saberr Member
Joined: Aug 21, 2015 Posts: 124
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Posted: Sat Sep 24, 2016 11:34 pm Post subject: m38a1 transfer vent line routing ? |
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About to drop my re-built engine into chassis, and was hooking up the vent and oil lines today. I was stupid and didn't get good pics before i took engine out. Have checked through all the info i can find and tm-9-8015. I can not find where the transfer case vent line ends. I know it runs from T on top transmission up and along the block. That was all. The none handled pumps it ran to front of, but what about on the handled pumps ? Only place i can think of is the T before the pvc valve and after pump. Can't figure out if something else hooks in that T. When i got the jeep, all lines existed, but were not connected since a single action pump was installed, the lines that were there just hung. |
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wesk Site Administrator
Joined: Apr 04, 2005 Posts: 16253 Location: Wisconsin
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Saberr Member
Joined: Aug 21, 2015 Posts: 124
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Posted: Sun Sep 25, 2016 9:53 am Post subject: |
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Looked through your album wes, ether im blind or its just going right over my head. Only picture was once again fg 110 engine vent system. Cant tell if the vent line goes in the T fitting or not, just too general of drawing and the fuel pump is pulled away in drawing. I didn't see any real pictures with the lines ran with the handled pumps ether. |
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OKCM38CDN Member
Joined: Feb 17, 2012 Posts: 530 Location: Del City, OK
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Posted: Sun Sep 25, 2016 10:06 am Post subject: |
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Transmission vent line; if equipped went from the Transfer case to the Bell Housing (Tee used here) then over along the engine to the Fuel/Vacuum pump to a one way ball check valve. This is the same as on the M-38...
Hope that helps... _________________ Hal, KB1ZQ
TSGT, USAF (Ret)
1952 M-38 CDN CAR 52-31313
1952 M-100 Strick #104
1951 Willys Wagon (For Sale)
1954 Willys M38A1 201001205
Tornado Alley
Del City, OK |
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Saberr Member
Joined: Aug 21, 2015 Posts: 124
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Posted: Sun Sep 25, 2016 10:26 am Post subject: |
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ok, the check valve is a missing piece of the puzzle. Now, how does that connect to the pump ? Where is this connection ?
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4x4M38 Member
Joined: May 30, 2014 Posts: 3447 Location: Texas Hill Country
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4x4M38 Member
Joined: May 30, 2014 Posts: 3447 Location: Texas Hill Country
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wesk Site Administrator
Joined: Apr 04, 2005 Posts: 16253 Location: Wisconsin
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ocwd Member
Joined: May 14, 2007 Posts: 721 Location: Placentia, CA
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Posted: Wed Mar 24, 2021 8:37 am Post subject: Vented Cap |
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I would like to install a vented cap on my fuel pump. The vented cap is shown in Wes's illustration above. Just a couple of questions.
1. Where to buy such a cap?
2. What is the thread size and pitch?
Thank you,
Dave[/list] |
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wesk Site Administrator
Joined: Apr 04, 2005 Posts: 16253 Location: Wisconsin
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RonD2 Member
Joined: Oct 02, 2014 Posts: 1911 Location: South Carolina, Dorchester County
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Posted: Wed Mar 24, 2021 10:56 am Post subject: |
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I could be mistaken, but thought it was the same vent used on the differential covers?
If yes, MWM has them for $6 each here: https://store.midwestmilitary.com/product-p/915564.htm _________________ Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51
“The only good sports car that America ever made was the Jeep."
--- Enzo Ferrari
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wesk Site Administrator
Joined: Apr 04, 2005 Posts: 16253 Location: Wisconsin
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Posted: Wed Mar 24, 2021 10:30 pm Post subject: |
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Yes. Both are found easily in your copy of the M38A1 ORD 9 SNL G-758!
Valve, fuel pump air vent, Used after sn MD23359 ORD# 5196397 Pg 83
Valve, axle vent ORD# 5196397 Pg 219 _________________ 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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ocwd Member
Joined: May 14, 2007 Posts: 721 Location: Placentia, CA
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Posted: Thu Mar 25, 2021 7:36 am Post subject: Vented Cap |
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Thank you. Same part number so threads should match. I'll order from John. Once upon a time I hade one of these axle vent caps in my parts but I lost track of it. Oh well. |
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wesk Site Administrator
Joined: Apr 04, 2005 Posts: 16253 Location: Wisconsin
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ocwd Member
Joined: May 14, 2007 Posts: 721 Location: Placentia, CA
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Posted: Thu Mar 25, 2021 6:48 pm Post subject: Vented Cap |
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I’ll go check it out this weekend. Thanks for the tip. |
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