My miniature at work.

[popnrattle]

Thanks for all the positive comments and interest. The engine is a work-horse and what really impresses me is the durability of the o-ringed piston. We have had the head and cylinder boiling water just to see what would happen to the o-ring but it just keeps on going and going. I'm thinkin' of making an acrylic head so I can see the "fire" of the combustion. Gosh...so many ideas and not enough time. Later, Rick.

 

[litoweapon619]

really cool man nice job 8)

 

[lee9966]

That's fantastic! What kind of o-ring? Viton?

 

[popnrattle]

well....when i ask if it is a viton o-ring they nod and say its what the plumbers use. thats all i got to go by. it cost $.79 per. i found another supplier and got 10 pcs. for $.39, and he didn't know if they were viton, so i'll take a chance for 4 cents each as they are easy to change out and no wear on cylinder. thanks for the kind comment. Later, rick.