Quote:
Originally Posted by AL427SBF
Thanks CHANMADD, kind of what I thought, exsessive idling = unnecessary oil starved wear & tear. Sounds like an electric oil pump might be the way to go.
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The FE guys with the solid lifter blocks are generally the ones who sit around and worry about the cam not getting enough
oil slung on them from the crank shaft, as no oil is pumped to the lifters. These engines rely 100% on oil getting splashed on the cam. A hydraulic lifter is always dripping some oil onto the cam lobes. A flat tappet lifter has to have a layer of oil between it and the cam lobe or there will be metal to metal wear. A roller lifter does not slide on the lobe as the roller is more like a tire rolling on the ground. Although the roller itself is a bearing that requires lubrication, I would think a roller lifter does not require nearly as much oil as a flat tappet. Certainly not on the cam lobe.
I'm not sure a small block with a hydraulic roller lifter has any risk of not getting enough cam shaft lubrication at an idle.
Pistons rely on splashed oil as well. You never hear of a piston failure from lack of oil during extended idling.
Some of this concern may be for engine designs that you are not using.