In article ,
says...

On Sat, 26 Nov 2011 07:57:27 -0500, John H
wrote:

You could make a nice little engine for your model boat:

http://www.wimp.com/tiniestengine/

Unreal.

Enjoy. I sure did.

===

Very, very cool.

Lots of questions:

Ignition? Did not see any plugs or wires, assume it must be sort of
a quasi diesel like a model airplane engine.

Lubrication? No sign of a pressurized lube system so assume it must
be done by hand.

It would take the patience and skill of a swiss watch maker to build
something like that. I wonder how many man hours.

It was fascinating to watch the crank shaft being turned using an off
center billet. Incredible precision involved for that and the cam
shafts.

Gene Kearns would appreciate this if he is still lurking under another
name. He'd need to downsize that 20 ft lathe of his by just a bit.

I'm guessing, like you, that they used compression only to light off the
air/fuel mixture. Also, I'm guessing that it's lubed by hand. Kind of
like when you go to the flea markets, and they are selling Slick 50, if
it's still around. They'd have an engine there idling with no valve
covers or oil pan.