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  1. PaulsGarageProjects

    Atom Minor Mark III - First IC Engine

    Many thanks for the info! By the way, should I be able to run this engine on methanol/2 stroke oil? I bought some (supposedly) 99.9%, mixed 4:1 with 2 stroke oil, but couldn't get it to run at all.
  2. PaulsGarageProjects

    Atom Minor Mark III - First IC Engine

    Wow, impressive how easily your engine starts! I'm going to have a play around with the ignition timing later on 👍
  3. PaulsGarageProjects

    Atom Minor Mark III - First IC Engine

    The engine has a cast iron piston and cylinder with no rings, might be why it requires so much oil? The instructions say: "The fuel recommended for this engine is ordinary petrol, as used for motor vehicles, with the admixture of a fairly heavy oil, such as Castrol XL, in the ratio of one part...
  4. PaulsGarageProjects

    Atom Minor Mark III - First IC Engine

    I mounted the hall effect sensor on an aluminium ring, which has a slit and a screw to close it up. I'm going to add a small lever, so I can adjust it while the engine is running.
  5. PaulsGarageProjects

    Atom Minor Mark III - First IC Engine

    I've been running it on 1:4 petrol and SAE 50 oil. Tried it on methanol and castor oil but couldn't get it to start, or even make a pop. I didn't like the look of the fiddly little rough casting for the contact breaker, so got a MiniMag MCL-1, with the hall effect sensor. Managed to shock...
  6. PaulsGarageProjects

    Atom Minor Mark III - First IC Engine

    Hi all, Here's my Atom Minor MK III that I built using plans and kit from Hemingway Kits. I also followed the accompanying book by Edgar T. Westbury. As my first build, I found it to be a good challenge, but not too difficult, and have learnt many new skills completing the project. The plans...
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