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Canadianhorsepower's build of Rupnow engine

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gus

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Good on you Luc!! I'm glad you are feeling well enough to resume work on the project. It is a good running, but very out of balance engine, and wants to walk all over the room while running if it is not bolted down. if I were at the stage of build that you are on right now, I would give serious consideration to some balancing holes through those beautiful flywheels to even out the balance . If you want, I will post a drawing showing the correct location of the lightning holes.---Brian

Hi Brian,

The engine nearly toppled the Makita BandSaw over Gus. Ha ha Ha

Promise . Sometime in the future, we have to do some counterbalancing.
 

canadianhorsepower

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Hi Brian,

The engine nearly toppled the Makita BandSaw over Gus. Ha ha Ha

Promise . Sometime in the future, we have to do some counterbalancing.
Hey Gus

I did redesing both flywheel and I wont be using the little adapter to hold the crank together I'll press it instead.

Hopefully Metal Supermarket is going to get the 4inch CRS steel soon:wall:

I'm anxious to start over
 
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canadianhorsepower

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Ok I'm back, finaly got time to work in the shop ( for my hobby)
Brian advise me about the engine unbalance and advise me to do
some change. Well I did. "this is experimenting more then anything"
I did remove the adapter holding the crank together "bolts on"
I did remove some.....some .....SOME...... from one side of the weight.
I did keep the outside ring for momentum when running. I could have build two new flywheel
but just curious of the outcome. They look great"my opinion" and are lighter
enjou these pics. Of course beeing a press fit crank, the con rod big end will be modified also
(page 2) enjoy the pics
cheers
Luc

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DSCF2944.jpg
 
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