Thanks, I found on page 22 of that manual that Allis-Chalmers 160 with a Perkins AD 3.152 diesel, doesn't have external timing marks. That's about the dumbest thing I ever heard of.
On a CAV DPA Injector pump nomenclature plate, there are these #'s 3430060, PW 50, 800 6 2420, 096290 X1, how can I identify which of these #'s is the model #?