[DeTomaso] Mechanical Fuel Pump

Scott Couchman scottcouchman at yahoo.com
Tue Apr 10 10:33:36 EDT 2007


Thanks, if there isn't something special I'm missing here, I'll just go slow as I tighten. It just seems like this one is much further off than I'm use to. Maybe it's just the luck of the draw (rotation of the cam). I expect there to be some gap until I tighten the mounting bolts, this one just seemed to be off too much. Maybe the electric pump has me spooked a little......kind of like the turtle on a fence post.....it didn't get there by itself, and there was probably a reason.

Asa Jay Laughton <asajay at asajay.com> wrote: If the eccentric is in this position:
http://www.asajay.com/351rebuild/images/engine/gearset_in.jpg

it's going to be harder to install the fuel pump, but not impossible.  
It will just take more leverage.

Asa Jay

Scott Couchman wrote:
> I'm having a problem installing a stock mechanical fuel pump in my '72 #4010. The car had an electric fuel pump when I bought it. I thought this was interesting but not too concerning. I decided to change it for a stock mechanical pump. I bought a NAPA pump for a '71 Mustang with a 351 Cleveland, but unfortunately, the pump doesn't fit my Panera. The flange/bolt hole locations are all fine. The problem is that the pump flange doesn't fit flush against the flange on the block. It's like the cam lobe is too large, and the pump arm can't deflect far enough to allow the pump to sit flush on the block. I know the engine was rebuilt by the owner previous to the owner I purchased the car from. I'm now suspicious that the electric pump is there because there was a problem fitting the mechanical pump after the engine was rebuilt. Any ideas?? Are there cams that fit a Cleveland that have larger diameter fuel pump lobes?? Are there multiple fuel pumps for a Cleveland?? Could I just
>  have a model year mismatch problem?? Thanks Scott
>
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