Fuel Pump Questions.

army_inc · Posted: Thu Mar 29, 2012 7:18 am Post subject: Fuel Pump Questions.

Ok guys. Over the past week I've acquired 4 fuel pumps. 3 of them look the same while one of them is a rebuilt or brand new one. 1 of them has the glass bottom. Which one is correct for the A1? Or are all of them correct. I'm doing a motor pool resto but was wondering if it mattered. Thanks.

Below is a link to the picture with the fuel pumps.
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album135&id=fuel_pump&op=modload&name=gallery&file=index&include=view_photo.php

RICKG · Member Joined: Aug 31, 2010 Posts: 1741 Location: SO IDAHO

Here is the correct AC fuel/vac pump.

Not shown in the pic is the required 1/2" spacer between the pump and
engine block. Will those you have aquired work? Probably but other guys can better answer that question. Given the high price of the correct AC
pump you're in a good place with what you've got if they're compatible.
See TM9 1828A in the downloads.
_________________
keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a

skyjeep50 · Member Joined: Feb 20, 2007 Posts: 606 Location: Illinois

None.
_________________
1951 M38

army_inc · Posted: Thu Mar 29, 2012 9:15 am Post subject:

well MFL. Oh well. Does anyone know if they will work on the hurricane? Any help would be greatly appreciated. Thanks.

hill · Posted: Thu Mar 29, 2012 9:53 am Post subject:

Yes they will and they don't require the spacer that was mentioned in the earlier post. but some of the front covers may need to be modified or the pump may rub the cover. or the pump be modified. I have used that style on my first M 38.

army_inc · Posted: Thu Mar 29, 2012 10:28 am Post subject:

M38 or M38A1? Just want to make sure so I can sell them if I can't use them.

skyjeep50 · Member Joined: Feb 20, 2007 Posts: 606 Location: Illinois

Fuel pumps are interchangeable between the M38 and M38A1 engines. If it works for one, it will work for the other. As mentioned, some fuel pumps require a spacer.
_________________
1951 M38

RICKG · Member Joined: Aug 31, 2010 Posts: 1741 Location: SO IDAHO

wesk · Posted: Thu Mar 29, 2012 5:54 pm Post subject:

When using a dual diaphragm pump with the L134 and F134 then you must know if the pump is civilian or military. If installing a military dual diaphragm pump use the 9/16" spacer and if installing a civilian dual diaphragm pump use the 1/8" civvy spacer. Single action, single diaphragm pumps do not use a spacer. One pump in that photo has an odd lever.
_________________
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

army_inc · Posted: Thu Mar 29, 2012 8:02 pm Post subject:

I've downloaded the fuel pump TM and looked over it. I haven't been able to read much, but I tried matching any of my pumps with the ones pictured. I'm not sure what syle I have though. Are they military or civilian. I'm assuming they are civy as they are not the correct AC type. Other than that, I have no idea Sad

wesk · Posted: Thu Mar 29, 2012 11:00 pm Post subject:

M38 Fuel Pump. Uses 9/16" spacer

M38A1 fuel pump. Came with hand priming lever and this pump will interchange both ways with the earlier M38 unit. Uses 9/16" spacer

A1 pump showing area where part number is usually located. Can be top, bottom or either side of the mount flange. Often only the last four digits of the part number are stamped.

1960 CJ3B pump w/o filter bowl. Uses 1/8" spacer.

Late F134 dual action pump with filter bowl. Uses 1/8" spacer.
_________________
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.