[johnneilson]

Thanks Benson, yes the "B" pumps are different.

One of the changes had to do with the thru bore in the housing and the diameter of the shaft, allowing for more volume. The feed hole out the front of the galley is for feeding the tray, for my purposes, it is always plugged. But I do not run dipper rods.

My statement about the system not being pressurized comes from the fact that the feed hole into the galley from the pump is the same size as the front hole where the oil exits for the dipper tray. That being said, it is not a pressurized system, it has oil directed to the bearings. I am really surprised to hear your motor has 8-10 psi at speed, I would not have expected that. The last stocker I ran had so much clearance it made no pressure.

The picture shows a moderately built "B" motor, good for street and hill climbs approx 180 hp.

Best, John