mackimize

with no part number on it and no catalog to leaf through, here i am trying to figure out the part I am in search of.

Thank you so much for your gracious information.  What an absolute joy it have been discussion this topic with you.

process of elimination from supply pumps that resembled the one on the truck and that supported over 250 hp

here is the supply pump.  Trying to figure out the image up load thing

pretty sure, based on image comparison

I get it, the throttle return spring is crap.  I did get the truck for $800

I have called a local PAI distributors about ESP-3597 and was told it's discontinued.

According to the exhaust emissions tag on the block, I have a 1978 ENDT-676 rated at 283 hp

Stamped on the bullgear cover is T676-8A8100

Looking for any info on the engine

Next, I am in need of a fuel lift pump.  The one on the engine has American Bosch cast into the side.  The one I am need of, according to what info I have so far, is 314GC228A / ESP-3597.

This part number is discontinued and the available parts are $350 and up.  Would another lift pump work if rated to flow the same from a different generation of Mack engine work ? like a 314GC227?

Thanks