@gschjetne Just occasional splash of engine oil into crankcase. Plan was to seal off transfer port and extend the crankcase to make it into a traditional sump with splash lubrication. Heat expansion of the alloy piston makes it unusable without casting iron pistons. Have now moved onto the Bower and Bell engine in the other video.
Just as bog standard 2 stroke outboard.Think it was a Mercury but can't remember, now scrapped because the aluminium pistons expand too much with the steam heat then siezed. Solution is to make cast iron pistons, seperate the sump from the inlet ports and have a wet sump.
Did you use some kind of lubrication?
gschjetne 1 year ago
@gschjetne Just occasional splash of engine oil into crankcase. Plan was to seal off transfer port and extend the crankcase to make it into a traditional sump with splash lubrication. Heat expansion of the alloy piston makes it unusable without casting iron pistons. Have now moved onto the Bower and Bell engine in the other video.
auraeng63 1 year ago
Well, you got carried away and buggered this up eh?
alectraproject 1 year ago
think of the steam engine piston materials, and then machine and retrofit, could be pretty neat boat setup! Good work! It's like art--
swarne8 2 years ago
Did you convert a production gas outboard motor? What was it?
trackhoe23 2 years ago
Just as bog standard 2 stroke outboard.Think it was a Mercury but can't remember, now scrapped because the aluminium pistons expand too much with the steam heat then siezed. Solution is to make cast iron pistons, seperate the sump from the inlet ports and have a wet sump.
auraeng63 2 years ago
You proved the concept.
rayunseitig 2 years ago
Very cool project!
outlaw9np 3 years ago
Why is there no sound??
Skoda130 4 years ago