'52 M38A1 gas cap question.

Dragnet · Posted: Sun Sep 02, 2007 9:35 pm Post subject: '52 M38A1 gas cap question.

Hi all,
Are the gas caps suppose to "breath" at all? I am having a pressure problem on my 1952 M38A1. The vent tube on the tank is clear but pressure still builds up so much fuel leaks out of my pick up and sending unit fitting when she been driven for a long distance. Both gaskets are new and everything is tight. My gas cap has been painted over so many times over the last 50 years I can't tell if the round middle part is suppose to open or if it's just a bump. Plus the inside middle is pretty corroded. Time for a new cap? Any help will be appreciated, thanks guys.
_________________
I loved my Jeep!

Seymour · Posted: Mon Sep 03, 2007 2:14 pm Post subject:

Dragnet, I'm kinda new at this A1 stuff and can't really answer your question but I would like to know which of these caps would be correct for an early A1...

_________________
'43 MB
'53 USMC M38a1
'52 USMC M100

wesk · Posted: Mon Sep 03, 2007 8:28 pm Post subject:

Mike,
If it has ribbing around the outer edge the one on the right is correct.

Gragnet,
Leave your cap loose and drive the jeep. Does the seepage stop?
_________________
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

Seymour · Posted: Mon Sep 03, 2007 8:49 pm Post subject:

It does have the ribbing, Wes. What is the cap one the left for?
_________________
'43 MB
'53 USMC M38a1
'52 USMC M100

wesk · Posted: Mon Sep 03, 2007 9:30 pm Post subject:

The REO 2 1/2 T

http://www.g503.com/forums/viewtopic.php?t=101165
_________________
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

Dragnet · Posted: Mon Sep 03, 2007 9:56 pm Post subject:

wesk · Posted: Mon Sep 03, 2007 10:20 pm Post subject:

The non-vented cap that says "release slowly" on it will not and is not suppose to vent. So if pressure is building up in your tank then either the vent line to the air filter housing is plugged, the relief valve in the tank fuel pickup assembly is stuck or your fording valve is in the fording position.

1-Check the position of your fording valves.

2-Remove the vent line from the top of the tank. blow thru the line to the air cleaner. Is it clear? Remove the gas cap. Blow thru the tank vent line port to the tank. Can you hear air rushing into the tank?
_________________
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


Create an account	Home · · Forums · · Articles · · Downloads · · Photo Gallery


PHP-Nuke Copyright © 2005 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.