Thanks Bob,
Both engines are on frames with ST heads mounted. And both heads are of course, single phase.
I'd like to have 3 phase, but they don't seem to be available or at least not popular.
I've found 38ac's post again, and now I will re-read it with greater attention as it applies directly now.
Luckily, I have a forklift to help with the lifting.....
One question I have, is, is there any sort of printed 'general' manual available for these engines?
I don't know if the Indian makers provide manuals or not? Something with dimension and torque specs perhaps?