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  1. AndrewW

    Upshur's opposed twin engine

    Interesting Jason! I've not started on my heads yet. I think I will try taking a few thou at a time off the bottom of the rocker posts to try to get a tight lined up fit. I'm going to use rimfire vr2 (maybe long reach) plugs but will try to get hold of a thin sided box spanner to work out how...
  2. AndrewW

    Upshur's opposed twin engine

    Very interesting Jason. To be honest I think I missed the reference to a "small" chamfer at the bottom of the liner. Cheers Andrew
  3. AndrewW

    Building a twin cylinder inline i.c. engine.

    Hi Brian Thanks for the mention. I hope you manage to get the engine running at some point. Don't give up! Cheers Andrew
  4. AndrewW

    Building a twin cylinder inline i.c. engine.

    Looking good Brian! I'm looking forward to seeing this engine running. Keep up the great work. All the best. Andrew
  5. AndrewW

    My Jerry Howell v-twin (s/n #599) has sprung into life

    Thanks Scott. Unfortunately it can become a bit of an addiction! Cheers Andrew
  6. AndrewW

    My Jerry Howell v-twin (s/n #599) has sprung into life

    Thanks Kees. Your 3D printed v4 looks amazing. Yeah I only run for short periods, so no fans needed. I found that the only weak element of the V-twin design is the tiny brass connector between the gear case and the crankcase. Otherwise the engine runs very well. Cheers Andrew
  7. AndrewW

    Any plans for a v-twin small engine around?

    I've made both the Hoglet and Jerry Howell v-twin. Both builds are documented on my YouTube channel. The playlist for the Hoglet is here: The JH v-twin is a more complex build. Cheers Andrew
  8. AndrewW

    David Kerzel plans

    Hi James Don't be put off making your own piston rings. It's fun and you will get a real sense of achievement. My video below shows the method I used for the very first time. I've used the same method several times since then and always had great success. It takes less than a day to make several...
  9. AndrewW

    What kind of spark plug do I need?

    Just for info. The odds n ends engine drawing shows a Honda cm-6 spark plug which is M10 x 1. Mind you, when I made mine I used a 1/4" x 32 plug cos that is what I had kicking around. I hope you get it running soon. Cheers Andrew
  10. AndrewW

    GEAR CUTTERS

    Kripto beat me to it! Take the easy option and buy a couple of Mod 0.5 gear cutters. You just need to modify the distance between centres, as in my video.
  11. AndrewW

    Vertical 4 cycle engine from recycled parts

    Ha ha. Unfortunately it takes me ages to make a nameplate and I have too many other pressures on my time. I don't mind doing the odd favour though.😉
  12. AndrewW

    Electric Starter System for Model Engines

    Hi Brian - thanks for the shout out. Your solution looks good. For info - I managed to find a geared motor on eBay. I've pinned the following description to my video explaining what I later did........ I decided to replace my starter motor with a geared version. This motor was suggested by...
  13. AndrewW

    Vertical 4 cycle engine from recycled parts

    Hi Brian If you have a nameplate design in mind I could try to engrave it in brass. I would need your design in jpg or png format. I would then use Inkscape to trace the image and convert into svg format for importing into Fusion360. No promises but I would be willing to have a go. I live in the...
  14. AndrewW

    Odds & Ends engine

    Hi Colin I hope you manage to get your dad's old engine running. I seem to recall that the most difficult bit for me was cutting the valve seats. I think I decided to change the design a little and made some valve guides to press into the 'head'. I should complete my Jerry Howell v-twin soon and...
  15. AndrewW

    Odds & Ends engine

    Hi Gordon I made a Philip Duclos odds n ends engine in 2021. It's exactly as per the drawings and runs really well. I don't understand how others have used a different carb, as its an integral part of the valve assembly. Have you got the fuel tank outlet level with the carb inlet? If not, that...
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