Re: 491 running on air

Mike would pump it up to about 50 lbs and go out twice and back in twice on one charge. I think about an hour to hour and 1/2 per charge. It is really good for them to run like that. the cylinder lubrication tends to lay in the bottom of the cylinders but that is where the greatest rub is. Letting an engine just sit and rust is a crime. Having said that you need a good boiler to use it as a pressure vestal. else you need a steam hose from another boiler. A 1 inch line will work with steam to exercise the engine. We would be running 318 with a hose if here piston rings hadn't been removed and lost. The rest of the running gear is up for it.
Jack