- Joined
- Mar 9, 2010
- Messages
- 597
- Reaction score
- 704
Just finished a V4 engine based on CFellow's wonderful opposed 4 engine. Used his basic layout and valve arrangement, with a few things changed: swung up one bank to make it a V, changed the gears to a ladder chain, went to a 2-stroke cycle (though swapping the valve rod and top gear would make it a 4-stroke like his), and upped the bore to 3/4". Makes a great sound (dont think the camera picked that up that well - in person it has more pop to it, sort of like a gas engine). The flywheel is from another engine, and does not fit that well - wobbles a bit, but I couldnt wait to fire it up. The valve springs took some experimenting to find ones that were the right strength and size - found some in mechanical pencils that worked fine once shortened a bit.
photo attached, here is a video clip as well:
[ame]http://www.youtube.com/watch?v=_CsfD9YcKeg[/ame]
photo attached, here is a video clip as well:
[ame]http://www.youtube.com/watch?v=_CsfD9YcKeg[/ame]