[SEL] Did they ever make?

[Tommy Turner]

Hagan built some 2 cylinder engines that were set up both ways.  There 
are 3 of them left, a 20, 30, and 50 HP.  The 30 and 50 are set up so 
that there is always a cylinder coming up on compression.  This would 
make for a smooth running engine.  You would have "bang - exhaust - bang 
- exhaust - bang - exhaust....."  However, the 20 is set up different, 
like the JD tractors.  On it, you have a cylinder firing, then the other 
cylinder firing, then exhaust, then exhaust, then repeat the process.  
So, it would be "bang - bang - exhaust - exhaust - bang - bang - exhaust 
- exhaust......".  Now, here's the big question, the 30 and 50 both have 
a counter balanced crank, the 20 doesn't.  This looks like it would be 
just the opposite of what it should be.  If there is a reasoning for 
this, maybe this is one of the reason's JD did it the way they did, to 
prevent from having to do additional counter weighting of the crank.

Tommy Turner
Magnolia, KY


>>I wonder why John Deere's don't fire evenly. I think they are 90 degrees
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> from eachother which means they fire say at 0 degrees then the other
>cylinder fires at 90 degrees, then it wouldn't fire again for 630
>degrees ??? 360 X 2 = 720 - 90 for the second cylinder = 630 . So it
>would fire 0 , 90, 630 , 720.  Love the sound of one running at  slow
>speed.  You just can't duplicate that sound with any other type of
>engine. 
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>>Enough
>>Ron 
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