raveney

This has been the easiest first time startup of any of my model engines. I haven't changed the valve timing or the ignition timing...

Thank you Bob and Jason. I liked the look of the raised lip and also have never tried lettering. I'll learn from this model before...

Hello Ray, I really like the updraft carburetor idea along with the fuel hose used as intake runners. Very clean looking four cylinder...

It is great to receive the useful tips and encouragement. 🙂 thank you Pat. I watched a video by Tubal Cain about the coping down...

Another point. To make my casting easier to mould I cast the part without the fancy apertures, just the beading profiles left on and cut...

Lovely work! I built mine at 1/8th scale and used 3D printing for the leg patterns and a few other parts too. The cylinder however was...

If you want to do the bending thing in future then either use veneers or thin "aeroply", glue them together and then clamp in your jig...

I love these backyard casting threads ! Patterns are looking great. Its pretty easy to cope-down (I think that is the correct term)...

I thought I would take a break from four stroke engines and build a hot air engine for a quiet change of pace. I had purchased the...

Thank you for the encouragement Chuck. Still not able to start by hand, but it does fire rather quickly using a powerdrill. The first...

Thank you so much for the reference to an article and for taking the time to make a dimensioned drawing. Very much appreciated. My...

Tear Down and Inspection The engine seems pretty well broken in now and I thought I would try and make it more dependable when...

Hi Mike, Thank you for the suggestion to make PCV valves. How does one do that in a small scale? Do you use tiny ball bearings or such...

Thank you Ghosty, That makes me feel better about all that advance. I remade the water pump impeller using a stouter 1/4 drill rod shaft...

Thank you Jeff, good advice and I will fix the water pump first and try it again, but I think at least one of the rings is cracked or...