correct on the bearing orientation. opened up all 1/2" and 5/16" oil gallery. plugged dr oil gallery on #1 main. this was done before the block went to the shop and it did get a cleaning there. their is a plug in the large oil gallery under the rear cap. what is the proper orientation for that plug? how is it possible to have 75psi oil and not get enough oil to bearings?
Dave IIRC the plug is driven into the block between the passages from the pump and the main feed passage. If it was driven to far it could stop or restrict flow to anything past the #5 main. The cup side should be facing down. I suppose if it isn't driven in deep enough it could restrict flow to the #5 main.
If you remove the threaded plug from under the oil filter and shine a light in the port you shouldn't be able to see the plug.
