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

Thought to add more to the list

POWER SWITCH
I noticed the batteries on my R31 were getting hot and just die in no time, after some investigation I noticed the wires to the on and of switch weren't soldered well. I could only see that when I used magnifying glass . I disconnected them, cut the wires to expose new part and properly soldered them.

FUEL LINE:

First thing I ditch when I buy a Microcosm engine is the cheap fuel line, do yourself a favor and do the same, especially if you use anything like a lighter fluid, that reacts with the silicone in the line and causes uneven expansion. You don't need to add more to the issues here ...

Additional note on the fuel:
I tested the engine with VP Racing 40:1 fuel I have and it seems R31 likes it nore, is able to Rev more steadily and predictably.  It works on coleman fuel as well but it was my observation.


Hope above helps to sort your R31 if having similar issues mentioned in this post. Happy to help if I can