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Nice Little Engine Arv ! It sounds pretty good to me. If you want to change the sharpness of the hits, try Chucks idea and put a little stronger spring on the exhaust valve. You can also try playing with the governor spring a little. What I found with mine, if I lighten the spring tension on...

I would agree, 4 cycle and 2 cycle should sound the same with the governor. With a load on it the 2 cycle version should have more power available to run something, being it would hit every cycle. Scott

I have been busy doing other stuff around the house lately, but finally had sometime to get back to this little engine. Here is the new look! It has a new base, frame and water jacket added. The water jacket was machined to use the existing cylinder I already had made. The cooling fins cut into...

Marv, Nick pretty much hit it on the head. Here is a pdf file with some models of how the fork works with the cap screw cam. http://www.scottsrc.com/machining/forkdetail.pdf The first 2 pictures show the cam in the "hit" position with the linkage fork in place. The 3rd picture shows the cam...

Great looking engine Dave! I really like the way the countersunk cap screws look. I just posted a link to the governor drawings in the "photo's" section, part of the "Small Chuck's Single Hit & Miss" thread. Hopefully you can make some sense of them! I just took mine apart to get machining...

Ok, Here are drawings for the governor parts and a basic drawing of how they go together. Hopefully the drawings are up to par and no one has too many troubles reading them. http://www.scottsrc.com/machining/flyweightgovernor.pdf Here is a quick idea on how to make it work with a 4 cycle...

Thanks for all the great replies, I am really happy with this little engine. I am working on some drawings for the governor portion of the engine now, which I can hopefully finish in the next few days. There are no real drawings for the rest of the engine, maybe I can get some cad/solidworks...

Steve, You might look in the hair care section of your local Walmart, they sell small black rubber bands for tying braided hair, my daughters buy them all the time. I used one of these little rubber bands as a "spring" for my little flyweight governor, they are pretty small, the one I am using...

Thanks for all the Welcomes! I dove right in and posted the current engine project I am working on, along with some videos. I can't agree with you more, this is the best place I have found on the internet, a great amount of knowledge and friendly bunch to boot! Scott

After High School I enlisted in the USN as an Avionics Technician and served 4 years working mainly on FA-18 and F-14 aircraft systems. After that I stuck with Aviation electronics and went to work for Hawkins & Powers Aviation (Fire Bombers). I got to work on a lot of older aircraft, it was...

Here it is, my small Chuck's Horizontal Single with added flyweight governor. At first I didn't know if it would work but a few suggestions by Chuck and Gail got it running! Here is the video, see what you think: http://www.youtube.com/watch?v=H4KHmDs-iN4 The engine is still in the "rough"...

Here are a few pics of the engine with the new parts installed. <a href="http://www.scottsrc.com/machining/horizontal5.jpg"><img src="http://www.scottsrc.com/machining/thumbs/horizontal5.jpg"></a> <a href="http://www.scottsrc.com/machining/horizontal6.jpg"><img...

First off, thanks for all the great comments about this engine, and don't worry I haven't given up yet! Chuck: I never even thought about the exhaust valve, I was too worried about the intake. Increasing the spring tension on the exhaust valve should also increase the air pressure required to...

I finished assembling the governor last night and did some testing using a small rubber band to put tension on the weights. I think I kind of succeeded and failed at the same time :o Success: The governor does work and regulates the speed of the engine. I played with different adjustments and...

Alright here goes the experiment. As may of you have seen, I built a smaller version of Chuck's Horizontal engine, a 2 cycle version. There is some pics and video of it in the Photos section. Now I am attempting to make a flyweight governor for it, very similar to what is on a hit or miss...

I am taking the same route (basically) as a hit or miss engine. I am planning on the governor stopping the intake valve from opening, without it opening, the slave exhaust valve will stay open allowing the engine to free-wheel. I'll have to start another thread in the "Work in Progress" section...

Gail: I tried it first with just a plain aluminum cylinder, but it looked like it needed something. I put it back in the lathe and cut the fins, it looks alot better, kind of like there is more "going on"! I may change it in the future to look more like a hit or miss engine by adding a square...

I started this engine about 3 months ago and got side tracked until last week. I just finished it up (atleast the first part of the project) about a week ago. It is a smaller version of Chuck's Famous Single engine. This one is a 2 cycle version, as I didn't have any small gears to make it a 4...

Well, I have been a member for a little while, kind of hiding in the background, I figured it was time to make my first post on the forum. I have always been interested in anything mechanical since I was a kid. My first introduction to machining was when I was about 14, my Dad bought me a Taig...