I wholeheartedly disagree. Melling does not use a thrust washer in ANY of their M45 pumps. And this engine was running before I took it apart to rebuild it. The old '54 engine did not have a thrust washer on its pump. Provided its a different pump, but no thrust washer.
Are you saying that any 55-62 motor with a current-production M45 pump will fail? That is what Tom L alluded to. He said I would have to find an old pump body with stock thrust washer and rebuild it. But see the .125" recess in my old pump in the pic above? It wasn't there when I installed it. Would any kind of thrust washer be able to survive a load like that??????
THREE DIFFERENT DISTRIBUTORS HAVE MALFUNCTIONED WITH TWO DIFFERENT OIL PUMPS!!!!!!!!!!!!!!!!!!!
Now maybe there is a chance that there is something seriously amiss with the oil pump mounting boss in the block. There is also a chance that I've gotten 3 bad dists and 2 bad oil pumps. Or it might be the camshaft. Whats more likely? :confused: :confused: :confused:
Sorry to yell, your suggestions about the drive tang are likely correct. (but not source of the bind). I'm frustrated, as this has taken 2 years and 4 thousand dollars, and its still not fixed.
:mad: :o
