Root&Vandervoort with Magneto

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GreenTwin

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John-

That is a really smooth running build you have there.
I greatly enjoyed your Olds videos too.

The added features are really nice !

Unfortunately, many of the casting kit companies seem to be going the way of the Dodo.

Awesome build for sure.

Pat J
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cwelkie

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Great result John! The changes you made are a good addition. It's nice to see another engine running on one of your magnetos!
Charlie
 

Gedeon Spilett

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Realistic and quiet pace for this engine ! great result, specially for the use of the magneto, which usually don't like slow speed!
 

Vietti

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My goal was to make a slow running, long coasting engine. The only real disappointment is that it take 2 or 3 hits to come up to speed. I think the problem may be the heavy flywheels.

On my other magneto fired engines I turn the mag at crank speed, on this one I'm turning the mag at twice crank speed. So if the engine is running at 300 rpm the mag is turning at 600 rpm. Makes starting lots easier too, never had much luck making a working impulse. When running rich I get some interesting exhaust notes from the residual fuel being ignited at odd times!
 

patternmaker

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My goal was to make a slow running, long coasting engine. The only real disappointment is that it take 2 or 3 hits to come up to speed. I think the problem may be the heavy flywheels.

On my other magneto fired engines I turn the mag at crank speed, on this one I'm turning the mag at twice crank speed. So if the engine is running at 300 rpm the mag is turning at 600 rpm. Makes starting lots easier too, never had much luck making a working impulse. When running rich I get some interesting exhaust notes from the residual fuel being ignited at odd times!
I was always told that bronze was about 10% heavier than iron. I have weighed some of my silicon bronze flywheels and find compared them to the identical iron...... they are closer to 20% heavier. I think this is from the kit I sold you at the Black Hills Show....traded Rocky a Mery kit for it 10 or 15 years ago
 

ianjkirby

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I realise the castings are likely unavailable, but does anyone know if drawings are still available anywhere?
 
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