[Goat Blower]

I know what they're supposed to do, but being that it is not directly attached to the oil pump gear, it's not going to correct any axial load that might be caused by timing belt tension on the oil pump sprocket. It's attached to the idler gear which really has no axial load except for maybe thick oil at startup pushing the gears outward as it's pumped through the gears. I actually have a front cover with evidence of this type of wear, and it's from an engine with both balance shafts.

The main oil pump gear and shaft have oiling passages on the top and bottom of the gear, as well as to the shaft itself, so as long as there's clean oil in there and it's assembled properly, it should always be riding on a sheen of oil, and cause little to no wear.

I liked the concept on paper, til I actually looked at it a little closer.