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

Hi David, Yes, the high tension lead is just stripped and shoved into the boot.
If you get it close but not quite touching the plug tip, it will still work.
I would like to see a more proper brass tip to clip on but it does work as is.


You might want to swap out the springs for softer ones or stretch a bit to run it slower.
You can also remove one spring to help slow it down.

I also like to get the piston out and place in my lathe chuck to shave 50-100/1000 off the top and make sure there is just one O-ring. If you have 2 o-rings, remove one. The bore is very smooth and it is near impossible to get any oil between 2 o-rings.


I recommend white gas (Coleman fuel) or similar mixed 15 to 1 with Marvel Mystery Oil. I like Mystery Oil because it doesn't burn and it is passed through and out the exhaust while keeping the upper cylinder well lubricated.


Enjoy!


Gil