Double-ended Bar - DON'T HAVE NO ROLLER OR SPROCKET

[fencerowphil]

Milling with a dual engine/double-ended bar set-up

The awkwardness of the upside down engines in Marky Mark's pic is obvious.
Also, the danger for the upside-down-end operator pulling on the free chain on the top of the bar is that, if that chain breaks, it is coming at his head!
That's why he has the helmet and the other normal-operation-end guy doesn't need the helmet.


Of course the weighted end of the fuel line will seek the proper position to get gasoline.

On the other hand, when milling with dual engines, both operators are working normal position.

Phil L.

 

[spacemule]

The awkwardness of the upside down engines in Marky Mark's pic is obvious.
Also, the danger for the upside-down-end operator pulling on the free chain on the top of the bar is that, if that chain breaks, it is coming at his head!
That's why he has the helmet and the other normal-operation-end guy doesn't need the helmet.


Of course the weighted end of the fuel line will seek the proper position to get gasoline.

On the other hand, when milling with dual engines, both operators are working normal position.

Phil L.

Unless you've got one saw timed to run backwards, then one must be mounted upside down. The side of the chain on the top side of the saw is always going away from the saw, so if both saws are pointed at each other, there's a conflict.

That's interesting, Sedanman. I never thought about trying to figure each individual cylinder's power. The only differences I can see would be of course compression, and fuel/air volume through the intake and exhaust--well, I guess those are some big differences.