Fuel pump quit

[Whiteclam]

Gentlemen,
My in-tank electric fuel pump for my 1965 M151a1 finally quit and a new NOS pump costs $350. Has any one replaced their old fuel pump with a 24 volt, in-line electric pump? If so are there any tips on placement or tapping into the existing tank fitting. They sell them on E-Bay for around $60. Any opinions/advice, would be welcome and appreciated.

 

[Jusjofok]

When I first got my M151 it didn't have the in-tank pump so I tried the inline pump, killed 3 of them in short succession. You may have better luck with the military or aircraft ones if you decide to go that route but those are expensive. I am working on a mod to install a 12 volt in-tank pump but it involves an electronic component to drop the voltage and handle the amperage. I haven't had much time to mess with it lately so in the mean time I got a used pump from a member and have been running that. Can't remember what I paid for it exactly but think it was around $50, just had to clean it up a little to get things moving again.
Good luck.

 

[Whiteclam]

Actually, a member, via personal message, is already sending me a used in-tank pump. Keep me posted on your modification. thanks

 

[1958 M274]

In my opinion, if you are going with something other than the original electric in tank pump used on the M151/M151A1, the best option is to use an engine mounted mechanical pump for an M151A2. It's cheap, simple, reliable, and original to the M151 series vehicles...

 

[Whiteclam]

Thanks, I'll keep that in mind.

 

[natem]

The A2 pump does not have the vacuum pump for the wipers. I used a 12 volt inline pump on a dash switch.

 

[1958 M274]

The vacuum wipers are powered by both the pump and negative manifold pressure. If the vacuum pump is replaced with a fuel pump, simply connect the wipers directly to the intake manifold. Sounds like the original poster has a replacement original in tank fuel pump on the way anyway.

 

[Austringer]

Also, if you go with the M151A2 mech fuel pump, you'll have to reroute the fuel lines to the other side of the engine then back around to the carb.