I have the projector manual but it doesn't have any information on the Synchromat. Your best bet would be to go to the 8mm Forum and ask there, if nobody there has it they may be able to help answer questions.
I just got mine and it is mint and sooo sexy. Cannot wait to run some film through it. Thanks for all the help. I will hop over to the other forum and create an account.
I've always had really good luck with camera-manual.com, most recently in finding a manual for an old Meopta Axiomat Ia enlarger. So if they had that, they must have manuals for pretty much everything.