I thought I'd post you Lads Videos of some of my engines running.

1st up an Elbow Engine

http://www.youtube.com/watch?v=zVjsiqzU6Cs

2 nd up a Three cylinder Radial

http://www.youtube.com/watch?v=lNPtbzcx89w

3 rd up a Finger Engine

http://www.youtube.com/watch?v=M4UzHkv5kic

Last my Loco Running

http://www.youtube.com/watch?v=oqDAAMWftJg

I hope you find them of interest

Stew