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napolion wrote: Chris
Many thanks for that info regarding the wheels. I should have corrected myself concerning fwd and rev i meant when pushing it along a desk there seems less friction in rev, i dissconected the con rods and the axles apear free enough i swaped the pistons but just the same so something for the future. It would be nice if i could make some sort of adaptor and try air, O K for guys who have bits and pieces but for i have to order.
I understand now. It is probably that if you push the engine forward the pistons are pulling air in through the small steam hole causing more resistance [ as they usually work under the high pressure of steam], while in reverse they pull air through the larger exhaust steam holes. My Bowman 300's are the same.
Please don't mix up the cylinders and pistons, and make sure the pistons go in the cylinders with the conrods the right way round [ the serrated part of the hole facing in] or you will find that you will loose a lot of steam from the cylinders and it will not have the power to run on tracks.