I hope someone can give us some feedback...

We are replacing the fuel pump on the above mentioned truck, and having no end of problems, mostly due to the extremely difficult positioning of the (mechanical) pump on the block.

We want to make sure we are positioning the rocker arm correctly, but can't seem to get any feel for the proper place. We are rotating the camshaft now and again to try and get the arm inside so that it runs on the underside of the eccentric, but it seems that no matter where we rotate the engine, the arm won't go in enough to allow us to get the flange of the pump in position to bolt it to the block. The best we can do is to have the flange about 1/2+" below where it should be, but in contact w/ the block, and the lower part of the flange a good inch or so away from the block. But the arm does seem to be under "something". HELP!!!

We need this truck operational!! Any feedback would be greatly appreciated!!

Thanks... Tduck