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

I think they look neat, but in general Mamod mobiles doesn´t impress much in terms of efficiency

I was reading some forums about the Mamod Roadster, users have found several issues! The drive bands often slip, the pulleys are smooth, there is a supplier on eBay that offers rubber drive band upgrade for a price, but easy enough to make our own and or texture pulleys.
   Next it seems many have received units where the Cyl to steam chest and even the reverse lever machining is suspect, a careful lap on glass mounted sand paper can yield excellent power gains.
  Also mentioned was if even one bushing was poor or missing the drag is evident in performance. Steam leaks where also widely reported(possibly used or damaged units) I am told a Roadster in high state of tune can move along briskly!
  Also Forest classics offers a BIX burner conversion!,I suspect as the model starts to move, and also breeze running outdoors will disturb heat output of a live flame(Esbit) I suspect a BIX burner may offer more performance.
   I do also like the Idea of a Jenen power upgrade, I would need to find a deal on a good used unit to make me pull the trigger.