MAG
Well-known member
Looking for the ID for the oil pump socket in the block. Trying to find out if the socket is worn where the oil pump fits. The rebuilt engine ran fine for about an hour and a half and suddenly started knocking loudly at fast idle. Removed pan and all is well with rods and mains.. Oil Pump, however will move side to side in the socket more than I would expect it too. Would like to know both dimensions, ID of the socket in block and OD of the pump bosses. TIA