I did a cam swap and I think I got some gasket material in the oil pan. My oil pump shaft twisted and broke then I have no oil pressure. What are the chances that my motor is bad? It started in my driveway and I turned it off right away and changed the oil and started it again to see if I had oil pressure and I had none. It was knocking so I turned it off really quick. I just bought a new oil pump, shaft, and pick up tube. What do you guys think?