Another Internal Combustion Engine

[Rdean33422]

Not often we get to see a governor on a model.
Nice job !

This will be my third engine with a fly ball governor.
Thanks Jojo

Looks great Ray, and I’m on pins and needles waiting for the first “pop”!!!

There is still a lot to do yet and I keep adding more features to the engine.
Thanks John

This is the head mounted on the engine.
What do you think?
Do you like the name?


It has proven to be abundantly clear to me that the flywheels I made are way too small. I have a pair of 8" round cast iron slugs from McMaster Carr with the certification papers to be free of voids and hard spots. Cost me some $$$ but the others were just too small for this long stroke engine.
Out of the box they weighted right at 11 pounds each and at this roughed in stage they are at 6lbs 12oz and there is still more to be taken off later.


Now to clean up the lathe and the rest of the shop.
They did machine nicely though.


Thanks for looking
Ray

 

[Danuzzo]

Ray, I have been whittling away for several days now at a flywheel for my first I.C., the Webster, much smaller than the ones you describe. I thought it was mild steel; but, it is much harder (rounded some of my HSS lathe tools). I still have one side of the flywheel to go, as far as the internal depth. I have learned that I very much dislike making flywheels from scratch.

 

[Rdean33422]

They are not my favorite either as I had been making mine from bar bell weights. Never again.
I will buy cast iron from a known source and pay the extra. The first flywheels I made for this engine gave me a fit for several days. Several carbide inserts and a tool post grinder to get them to where I would except them.
A heavy coat of paint hides many issues or it looks good at 6 feet away.
Ray

 

[Rdean33422]

I made up a couple of taper lock bushings and taped the holes in the flywheels.


I just can't have plain solid flywheels so over to the CNC mill for some bling.
Drew up some curves, added some width, and hoped for the best.
I think it came out just fine.


First one cut out but a lot of work left to clean it up nice and pretty.


The other flywheel will be the mirror image of this one so the pattern goes the same direction when viewed from either side.

Thanks for looking
Ray

 

[Sprocket]

I like the curves. Philip Duclos had a method for doing that manually. I never tried it, but it looks good. Sometimes I wish I had CNC.
Doug

 

[olf20]

What angle do you cut your taper loc hubs?
Thanks
olf20 / Bob