Are the cylinders on the middle engine sleeved aluminium and the others cast iron or is it just my eyes playing tricks? I've wondered about making this engine both ways and wondered which was easier/better.
The reservoir is fixed by 2 legs
There is 1 motor with cast iron cylinder jacketed with a stainless steel tube.
1 motor with aluminum cylinder jacketed stainless steel tube.
1 motor with cast iron cylinder without sleeve