[WOEII]

Originally Posted by JRD77VET

Total weight of the Cooper engine with pump is 155,000 lbs. The flywheel weighs 22,000 lbs, is a two piece design and is 14' in diameter.

21-1/2" bore and 36" stroke. It's a four cylinder design that has TWO pistons. Since there is "fire" on both sides of the pistons, cooling is done with water pumped thru the connecting rods, thru the pistons and then dumped out of pipes on each end. The water pump is between the two cylinders and the pipes moving back and forth is seen in the video.

In the video, it's running about 60 RPM. Changing the gearbox ( leather belt to the governor) allows engine speeds of either 60, 75, 90, 105 or 120 rpm.

It was built in 1913 and was running until the late 1970s at Columbia Gas in Medina OH. We got spare parts for it from another branch of Columbia Gas from their Rockport VA pumping station. They took out three identical Cooper pumping engines in 2015. Out of the twelve cylinders on those three engines, only one cylinder didn't meet current EPA standards. A rebuild would have brought it back into compliance. ( but the Govt was throwing all kinds of money around to "upgrade" to something that will wear out in 12-15 years. )

Love it.