Duble action fuel punp rebuild ?

Saberr · Member Joined: Aug 21, 2015 Posts: 124

Want to rebuild my duble action fuel pump. Know there are lots out there. Does anyone know one who makes a kit that stands up to modern fuel, espc the rubber ?

southpw · Posted: Fri Sep 16, 2016 1:02 pm Post subject:

Everyone raves about Then and Now. Thats where I got my kit.
_________________
1952 M38 project
Brad

Kendall · Posted: Fri Sep 16, 2016 7:02 pm Post subject:

Ditto. Very nice people to deal with.
Kendall
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1951 M38
1952 M38
1952 M38A1
1942 Dodge WC-55
1951 M100 trailer
1942 Ben Hur trailer

wesk · Posted: Fri Sep 16, 2016 8:38 pm Post subject:

You need to call in your order and have the pump part number (at least the last 4 digits off the flange) when you call.

http://then-now-auto.com/fuel-pump-repair-kits/

Ph: 781-335-8860
Ph: 781-335-1579
FX: 781-335-1925

447 Washington St
Weymouth, Ma 02188
_________________
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

4x4M38 · Posted: Fri Sep 16, 2016 9:16 pm Post subject:

And you need to make sure the understand shock shaft style you have.
_________________
Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php

wesk · Posted: Fri Sep 16, 2016 10:50 pm Post subject:

scoutpilot · Posted: Sat Sep 17, 2016 3:10 am Post subject:

If you will look at the first illustration. The shaft referred to is the stem for each diaphragm. Notice that each is different. In certain models, they are an open spade type with horizontal spaces. You must specify the design in order to receive the correct diaphragms.
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Old fashioned service never goes out of style.

4x4M38 · Posted: Sat Sep 17, 2016 5:22 am Post subject:

Sorry Wes,
Long day.

Shaft style as you show. One is an arrow shape, the other is rectangular.
_________________
Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php

wesk · Posted: Sat Sep 17, 2016 9:22 am Post subject:

I've known that issue for years guys. Point I am trying to make is if you offer advice please check your info first. A newby would be looking for a shock shaft for weeks. However had you correctly identified what you are referring to as to what they are called in the parts & service manual the information becomes much more valuable and helpful. In this case there are no "Shock Shafts" anywhere on that fuel pump. The shafts being referred to are the diaphragm shafts (F & K) in the top illustration which are an integral part of the diaphragm and not listed as shafts.

The idea here is to offer sound advice that will help the guy with his problem and make the task easier for him! Wink

_________________
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

Saberr · Member Joined: Aug 21, 2015 Posts: 124

THx very much for the information. I had hear of then and now for their kits before. I was a bit worried since the old timer supplier I've been buying from said he only carried nos, and they will disintegrate in no time flat with new fuels. He also said he didn't know any new kits he could stock for them that wouldn't break down ether. Have to give them a call some time next week.

Jeff_Lee · Posted: Mon Sep 19, 2016 11:29 am Post subject:

Also a source I have used with good USA based parts and kits is Classic Preservation Coalition. His kits tolerate ethanol based modern fuels.

http://classicpreservation.com/fuelpumpkits.html

Best,
Jeff
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1951 M38 restoration project - Flightline Jeep MC 23923 DoD 6-51
1954 M-100 Trailer USMC Dunbar Kapple s/n M-750759 DoD 1-54
1947 Willys CJ2A - Harvest Green
1954 Ford F-100 Parts chaser - blueprinted Y-Block
Southeast Florida

Hawkshadow · Posted: Sun Sep 25, 2016 7:21 am Post subject:

Fuel pump rebuild instructional:
http://www.willysmjeeps.com/v2/modules.php?name=Forums&file=viewtopic&t=10521&start=0&postdays=0&postorder=asc&highlight=
_________________
Jordan

M38 CDN
52-30718

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

Then And Now will also rebuild your pump for you. I sent parts of two pumps and the rebuilt one I got back is working just great after years of service.
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1951 M38

Saberr · Member Joined: Aug 21, 2015 Posts: 124

I took the pump screws off and once i saw the insides and how i would have to remove the brass rivet, i said "NOPE" and closed it up. Sent off to now and then on mon and got it back sat. Beautiful.


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