Royce: >At what air pressure should I consider my Philly ready for steam ? <
Having built several kits or rebuilt engines let me offer this. The lower the pressure you can get it to run under air, the quicker the break-in period under steam. Not only are you seating the various engine parts but also all the running gear. Apply plenty of machine oil all around while performing this break in period on air. Open your air line every few minutes and recharge with oil. If you can get this engine to run smoothly down to 5-7 psi you'll be rewarded when you put steam to it. Don't forget to reverse direction periodically. Jim
