Jerry,
Would the broken/ clogged oil supply line affect oil pressure?
If so could it be enough to give a false "bad oil pump" indication?
Chris
That line is only 3/16" OD (probably 3/32" or so ID) so even if it's broken, a good oil pump should still keep the engine lubed OK. The only noticeable problem would be no or low oil flow to the rocker arm shaft.
Jerry