I am starting the "Glen's pace" oil change, valve adjustment, and brake fluid change. No doubt it could all be done in an afternoon, but I am gonna do it slow and steady.
Yesterday I got the 911 on the lift, and drained the oil from the oil tank and the engine case. I let them drip out overnight and I will plug them up this afternoon. I will do the brake fluid change this afternoon and call it a day. Them Tuesday afternoon I will pull off all 4 of the valve covers. On Wednesday my buddy that is a recently retired master factory trained Porsche mechanic will arrive and he will show me his process for the valve adjustment. He worked at the dealership back in the days when the air cooled 911s were new. He used to average three valve adjustment per day. He has a little (Massive) amount of practice doing it.
Then just replace the valve covers, fill it up with oil and done! Just like Jiffy Lube.