I bought the crankshaft plug from Aircraft Spruce it is STD1211. Everything else was obtained from a friend of a friend through telephone description. It seems that this special cover is known to exist but its part number is not known to me personally. I have seen drawings of it and descriptions on the internet, in this forum in fact, but you will have to do a little research to come up with a source.
I did not remove the governor drive shaft, adapter or anything except the governor itself. In a few minutes I will be going back to the airport to reinstall the governor and C/S prop until the SARL racing season is completed three weeks from now and we have time to develop a better FP prop. We made a fast shot in the dark and lost 4.4 kts.
Bob Axsom