Author Topic: Unusual Porting  (Read 4909 times)

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Offline 660magnum

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Re: Unusual Porting
« Reply #20 on: September 30, 2015, 08:48:44 pm »
I've had trouble trying to help you for the usual scenario is putting a chainsaw or weed whacker engine into a model air plane and I keep giving responses in that direction.

You are wanting to put a Chinese reed valve model airplane engine into a chainsaw.

Some good chainsaw candidates would be the so called "Clam shell" chainsaws with a plastic case and a independent metal engine. These are typically the smaller saws offered as home use chainsaws.  The are more often sold in discount stores and are often at garage sales and junk piles as they are often considered not economical to repair. These are usually 30 - 50 cc. Look at some of them and see what you think?

I see a big problem in pulling this off as chainsaws have double ended cranks and most reed valve model RC engines have cantilever cranks. The modern RC engines with more power have battery powered ignitions and no flywheel. How will you cool the engine? How will you start it?
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