Guys, all is well. I was able to run the engine up to temperature 3 times now.
Idle is down to 800rpm and quite stable. I can go a touch under 600 but than things start to shake a bit, vacuum drops and the vicious circle starts.
Since I’m in the very early stages of setting up this motor I read a lot. Lots of it is there in the BBB and other manuals but fine details can only be found here. This site really is the welt of information. I came across so many interesting threads but this one here ;
https://www.sl113.org/forums/index.php?topic=24513.25really struck me. Everything that I came across is there and well documented.
At this point I only have one unknown with regards to timing. Looking through the Bosch distributor sheets, advance starts at 1000rpm for 051 distributor yet other manuals call for 4 to 8 degree of advance at idle. Since 700rpm seams to describe a healthy idle than that would put the above statements at disagreement.
I would like to pick a direction now and need to make a decision on the timing. My plan is to dial in 2deg at 600rpm already. I don’t quite see myself going for 8deg. at idle as I definitely don’t want to have any backfire or other racing related sounds coming out of my engine. I want the engine to turn as smooth as possible in low rpm range. I will be tuning it for power at the appropriate mileage.
More video footage coming soon.