Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Thx Gil, for the helpful valve timing info....on the cold running issue, my experimental brief elevating the cyl head temp >120 deg using heat air gun let me dramatically lean out the A/F needle V setting. Perhaps a simple non-metallic head gasket would cause similar heating & actual
fuel Vaporization phase for cleaner improved combustion ?....thx again,..tom.