Re: thoughts on main bearing Babbitt ??
I've seen main bearings done with no grooves in the cap and rod bearings with none in the top end of the bearing. There were grooves on the other side of them and chamfers along the join line. That makes sense to me because I think the hydrostatic wedge on which the crank shaft and rods ride is uninterrupted and at its strongest where it is needed. Just to be safe and get enough oil through the bearing, the owner ran low viscosity oil. From memory, about 10 or 15W30.
What do others think?
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