With the valves adjusted properly and good compression on all cylinders, these old engines will slow down until you can almost count the fan blades and still run smoothly. A long stroke, a big, heavy flywheel, and close to a hundred pounds of crankshaft working together has enough inertia to keep on turning at some really slow speeds.
There's the remains of a big single cylinder stationary Diesel engine at a closed-down cotton gin in Hazel Green Alabama. The flywheels are something like 8 feet in diameter, cast in pie wedges and bolted together, and the stroke is about 3 feet. Its normal running RPM was around 300 or so. Idle was about 60 RPM!
Something like this:
Jerry
Last edited by Hotrod Lincoln; 09/16/201710:50 PM.
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!
