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

Same Wilesco D10 engine on both, 250ml/100mm boiler/flywheel on the D15 and 500ml/80mm in the D455.

I Highly suspected the D455 used a D10 piston/valve assembly and also the same flywheel.  What makes this engine stand out to me is most Wilesco stationary models have a pedistal the cyl is mounted on then 2 bearing pillars the flywheel mounts to...then the only thing between these two points are the piston rod and valve rod....I have often wondered if you moved the cyl assembly in the clearance mount holes and also the flywheel in the clearance of its mount holes that you may alter valve timing just a little?...be interested to see if this adjustment would change the running any noticeable amount?
   So the unique feature other than vertical orientation is the casting that ties the Cyl/valve assembly to the flywheel at a fixed distance....I have a idea on a custom build for this model that Might be fun!
   Thanks for the video st paul!....your mods got that D455 running smooth and sweet...I see you turn the electric heater down low and the D455 just ticks over....I am warming up to Edison heat