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I sympathize with you people. 40 years ago I dropped a marine engine exhaust valve on my right hand index finger. I was a fourth class marine engineer grinding in an exhaust valve foe our Sulzer main engine. While applying grinding compound to the valve it slipped off the board I was using to...

Great piece of model making, especially using a stock Ruger 22. Hope it works as well as it looks. two thumbs up for it.

Nifty apparatus for blowing up balloons. I am sure the new neighbours will like it.

Brian Just noticed your build. Look interesting. I am going to follow this build. I know I will learn something from this.

Sorry to hear about your plight. I hope you can beat it and get back into the shop. I have a feeling that once you do your recovery will speed up. Just recently tired I now have time to get into my shop. I am going to check out all your posts to see what I can learn (alot).

Hello Zapjack, I just found you build. Great build. Will follow any more builds that you may have. Looking forward to the next 4X4 tractor build.

Question? What sort of compression ratio do you get. With the large volume in the rotary valve assembly there must be a way to bring the compression up around 9.5 to 1, a good compression for a gas engine.