Purchased used engine online! Was told it was compression tested! Would not start unless plugged in and cranked about twenty times. After warming up would start faster but ran ruff with abnormal noise.changed or rebuilt all external parts and sensors . Replace fuel injectors.casing on timing...
Tearing down 97 7.3 for rebuild. Attempting to remove cam, read info on removing Allen screws on timing sprocket on end of cam. Further reading in a proper year manual learned this was a mistake. The screws don't come out. I havent turned crank. Screws won't tighten back up.