Quote:
Originally Posted by Dragncar
Again, it is not possible to drill any holes 180 apart on a Melling Pontiac idler gear. Not happening. At any rate it is just a theory. How do you know the oil flow see,s one hole as incoming and one exiting. Maybe they are both intakes holes and the oil exits out the top and bottom of the gears ? No real way of telling, its just someones idea.
I bet when I pull my pump the idler shaft is perfect. I will post it.
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It works because of the high and low pressure areas in the pump cavity. Not trying to get involved in the arguement, but you asked... Pump theory isn't particular to Pontiacs, or even combustion engines.