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I cut out a couple of camshaft supports and pressed in the ball bearings. Made up an idler pulley with ball bearings and got everything mounted. Seems like a lot of work and material for just one cam lobe. Thanks for looking Ray

The intake valve is atmospheric. The brass knurled knob is the idle stop screw. The brass handle is attached to the throttle arm. Raise the handle and the engine goes fast and let go of the handle and the engine returns to idle by gravity. Made up the parts for the exhaust valve. They are...

These are the parts I made for the intake valve. Parts installed with a brass thumb screw for the idle adjustment and a brass weight/handle to hold the throttle in the closed position. Thanks for looking Ray

Yes it really is I am learning some new 2 cycle theory. I am not familiar with that engine and it sounds interesting. As you can see my crank has 4 dual main ball bearings and is an assembly. Glad to have you along. Maybe I will have time tomorrow to get back in the shop for some more fun. Ray

I have been watching your build but didn't realize the crank had two different strokes. I haven't thought much about 2 cycle engine building yet so that is probably why I didn't catch the significance of the two different strokes. . The throws on my crank are all the same length with the...

The main bearing are sealed ball bearings. The connecting rod ends are of a special impregnated bronze with 90 weight gear oil. A drop of oil on each bearing has proven to be satisfactory. They are sold by McMaster Carr. Ray

Roger that looks nice. K2 thank you and I may do that later. I installed the flywheels and the o-rings and made several other adjustments today. Everything is still turning without any binding. Valves will be next but not for several days as I have other duties. Thanks for looking Ray

Yes my flywheels usually do need trueing-up to some degree. One of my main concerns on building this engine was just how to balance the difference in weight of the lower and upper piston assemblies. You now have me thinking of making flywheels that are unbalanced to compensate for the weight...

The engine is still too low so I made some spacers to allow for the flywheels. The paint is not completely dry yet on the flywheels. Maybe tomorrow. Thanks for looking Ray

I think two 4" flywheels will be best for this model. I could make up several reasons for the smaller size being better but really I have the material for the 4" wheels so 4" it will be. Aluminum inside. Pressed together, cleaned up, with split tapered retainers. Next will be to give the...

I sawed through the center of the rod bearings, enlarged the holes in the caps for 4-40 cap screws, threaded the rod ends, reassembled and drilled the rod bearings to size. Then I gave them a little shine. Here they are installed on the engine. I did have some minor fitting to do on the rods...

I cut out the two outer connecting rods and installed the bearings in the ends. Cutting relief slots in the end of the arms for the rod cap bolts. This is how I drilled the holes for the rod bolts. It may look a little dodgy but the holes came out straight and true. Thanks for looking Ray

I installed the liner and drilled and taped for the intake valve, the exhaust valve, and the spark plug. I have given this a lot of thought as to just how I am going to support the upper piston through out it's up and down travel. It also has to be kept from tilting sideways and turning. This...

Turned down a piece of cast iron to fit inside the cylinder and cut to length. The liner is 5 inches long so started with small drill bits and kept working my way up until I could get a large enough hole for the big boring bar to get through. This bar has a 3/4" shank and made good time out...

Back on the engine today after a project for the wife the last couple of days. I thought it was time the engine stood up by itself so I cut out these feet. All put together and 10" high but it will need to go higher yet. Cast Iron liner is next. Thanks for looking Ray

David Kerzel horizontal hit-miss engine. The plans are freely available, built from bar stock, and get ignition module from China. This is the first engine that I built and checks all your wants. Ray

Sorry no I don't recognize it. Ray

Those tabs would be the pivot points for the governor weights. Probably a hit-miss engine. Ray

Back in the lathe for some cooling fins and a good clean up. I like shiny things don't you? Thanks for looking Ray

I milled some index flats and drilled for the cylinder bolts. It even fit first time. I think that this engine is going to be rather tall. Thanks for looking Ray