I bought this car about a year ago, and now I think I have a serious problem. The car has 171000 miles on it. I was out joy riding with a friend, hot rodding around some corners, then shortly after got a "No Oil Pressure - Stop Immediately" light...being only a few blocks from home, I drove it very carefully back home and turned the engine off. Checked the oil, full dipstick, but noticed air bubbles. After reading a few forums to identify the problem, the most common fix for air bubbles, no oil pressure light and knocking was to replace all the orings in the oil pan and clean the pick-up tube. Okay, these were fairly easy to replace, I cleaned the oil pan spotless with degreaser and soaked and cleaned the pick up tube, replaced all o-rings, new oil filter and oil...10w-30 full synthetic. Started the car up, and noticed the engine was idling very loud, almost like a diesel, the "No Oil pressure" light came back on and with slight acceleration of the gas pedal, there is a very noticeable KNOCKING, almost like it's a con rod bearing going bad. I immediately turned off the engine, checked the oil again, still full. Called a friend who works on foreign cars, and he immediately tells me the engine might be shot. I told him the car ran maybe just a few minutes after the "No oil pressure" light came on. He said well maybe I just need a new oil pump or con rod bearings. Does anyone have any advice on what I should do or how to check these things? I am fairly mechanically inclined, and can do the job either way. Just wanted to know if anyone else had this problem and what they did to diagnose/correct it. I think that if it needs bearings, I might as well do a full rebuild. Thanks!