160 Gnome

baldeagle · 21 October 2003, 07:25 PM

3

baldeagle · 21 October 2003, 07:27 PM

Inside the cylinder

baldeagle · 21 October 2003, 07:40 PM

A piston

baldeagle · 21 October 2003, 07:42 PM

with rings

baldeagle · 21 October 2003, 07:44 PM

3

baldeagle · 21 October 2003, 07:46 PM

note the cutout in the piston skirt because the pistons overlap during their motion.

baldeagle · 21 October 2003, 07:48 PM

5

gregoire · 21 October 2003, 11:02 PM

Great picture thank for showing them

baldeagle · 27 October 2003, 05:52 PM

The Ponsot spark plugs as used in the rotarys.

baldeagle · 27 October 2003, 05:56 PM

I'm only missing two of these to make a complete set, but the insulator is a stack of very thin mica washers and when I took one apart I found that they were disintegrating. It's been suggested to replace them with machinable ceramic, so that's a possibility.