TurboFan
Supercharged
Other Triumph (old) engines that I am familiar with are "dry" sump and have a check valve that prevents the oil from collecting in the sump when the engine is stopped. When it fails the engine "wet sumps" and is hydro-locked. You can't kick it over, and being no electric starter no harm is done, you just drain the sump, replace the oil and service the check valve soon. On the RIII I THINK it also has a check valve. The sump pump picks up most oil, but needs some to cover the pick up. How many cc's are where? Sorry, that is the real question you need answered and I must defer to someone who has drained each part separately. Don't forget the same oil circulates in the transmission.
My two cents, I would look to heat the oil tank, pull the dip stick and stick in the heater. My two cents, but I live in Southern Calif and my knowledge/skills for winterizing are worth "0".
My two cents, I would look to heat the oil tank, pull the dip stick and stick in the heater. My two cents, but I live in Southern Calif and my knowledge/skills for winterizing are worth "0".