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Yes it can.

Agreed. I had it happen to me on a Ford 390, the fuel pump is driven by an off set circle on the end of the camshaft, on the bigger gear driven by the timing chain that pushes a lever on the fuel pump. If the rubber diaphragm in the pump cracks or leaks for any reason it will begin to pump gasoline in to the crankcase.

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Q: Will a mechanical fuel pump leak gas into the oil?
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