Posted by Ray Fried on January 13, 2000 at 23:16:30:
I am cleaning up my 230 CID PW engine inside and out and noted that there is some kind of lead or solder plug in the outlet port of the oil filter container. This is the top port on the filter container. Perhaps there is/was a small hole in the lead plug but it isn't very big and I cannot get cleaning fluid through it. Does anyone know if this is supposed to be a oil restrictor? Was it factory or did someone add it to force more oil to the mains?
Does anyone know where the spring/pressure relief valve is that determins the max oil pressure? My understanding is that the oil pump pumps to the mains and any surpluss oil goes to the filter.
Thanks,
Ray