Info needed: Fuel pump rebuild.....what time is it? modern fuels

[Alex van de Wetering]

Hi Everyone, thanks for all your reponces, comments and suggestions. For now my plan is to use the original mechanical equipment....like Bruce I enjoy working with the old mechanicals and making them work. Maybe in the future I do decide to upgrade to an electric pump (with extra switch!).

I once salvaged about a dozen pump overhaul kits for the M38A1 jeeps which were heading for the garbage can

Rob, actually I think the rebuild kit I bought is intended for the NEKAF, the Dutch version of the M38A1!

The holes shouldn't be a problem. How different is he height of the shaft? Is it within the throw of the lever?

Bruce, I was hoping the attached picture would clarify the difference, but sadly it doesn't. From memory there is about a 2mm height difference in the rectangular hole between my original (that's presuming this hasn't been replaced in the past) and the red replacement (measured from the metal plate).

I think Lynn is right on it resulting in a different pump capacity, so I was planning to do a quick zap with the MIG and adjust the hole with a file to match the original.

you certainly do not want it to leak petrol into your sump.

That's another thing.....my base has 4 holes in the lowest part.....presumably to drain fuel in case of a leak? The other base I have does not have these holes???

Alex

[Lynn Eades]

Alex, I suggest you hunt some more for the right diaphragm. Every thing ran A.C. pumps back in the day. There are only two types as far as the "clocking" of the diaphragm goes, and probably only 3 lengths for each type. It shouldn't be too difficult.
(I am talking std 6 hole with the slotted rod)

Punching 6 more holes (done well) would not be a problem. The rod length is a problem. What is your pump from Alex?

The pump part number is located on top of the mounting flange.

[Mike K]

Holden Red motor fuel pump looks pretty much identical to a Chevy 216 fuel pump. Probably the FJ grey motor is also the same pump. They don't have the primer though,