Bought my first 911, a '70E Coupe last May. I knew it needed attention before buying it but I wasn't sure to what degree. There wasn't much in the line of documentation on the care it received in its thirty years on the planet. It leaks large amounts of oil from the left hand side of the motor (camshaft seal for MFI pump?) and the oil temp climbs to 250+ degrees after idling for 15-20 minutes. The engine is VERY dirty but I hesitate to pull it, clean it and fix the leaks. I would rather have it rebuilt and start from square one. Any thoughts? Thanks, Pete