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Originally Posted by jveik
so as for the question about if idling is bad for an engine, am i safe to say that any engine with a pressurized oiling system i.e. an oil pump is probably not negatively affected by idling? ..
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I may have misled... Its not one or the other. Most pressurized oil engines (which is all these days as far as cars are concerned) with cams in the block rely on slung oil for the cam lobes. For instance, a Chevy 350 has an oil pump and it oils main and rod bearings, cam bearings, and valvetrain, but since the lobes themselves are hanging out in the middle of nowhere where they do their work, there is no pressurized oil getting to them. The lobes themselves rely on oil thrown from the crankshaft.