V-twin engine from scratch - yet another interpretation of how (not) to build a

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madjackghengis:
Hi Sorveltaja, I'm really enjoying this build, despite the many difficulties, primarily because it resembles so many of my own projects. It seems you had an idea, ran with it, hit a number of stumbling blocks along the way but simply worked around each of them, one at a time, and while what is going together isn't the prettiest engine ever built, you are definitely working through the problems, and getting down to the "nitty gritty" of design and engineering: making the idea end up working, and not just a pretty picture, hanging on the wall. I'm really looking forward to seeing it run, you've got a unique engine going together there. :beer: mad jack

sorveltaja:
Thanks for kind replies :wave:.

Whole project is a sum of compromises, as the previous one was.
In practise one could say: Use the materials, that you have available, and the tooling you already have. Be it modest or whatever, make it to happen; take the most out of it.

Philosophizing aside, at this stage, when looking at the current engine's design, crankshaft would have less stress, if the flywheel was located inside the crankcase, as it is on Hoglet(or so I assume, based on the photos, that i've seen).

For some strange reason, I just had to do it on different way.

Same kind of oddness was noticeable, when I tried to make a fastening part for the piezo unit. I failed four times making it :bugeye:. Then I just stopped, and thought: 'this will not be a part for this project'.

So back to an ordinary breaker points -schema. Lo and behold: parts for that were a lot easier to make. In fact, they are now ready to use.

Anyways, the progress of this project is in halt -stage for a couple weeks, due to renovation on my apartment.

I'll travel away, but try to lurk as often as I can.

madjackghengis:
Dear Sorveltaja, I was really looking forward to your attempt with the piezo ignition, but I've gone a similar route before, trying to make something work, and ending up knowing a few different ways it won't work, instead. I know I've got piles a pieces of old projects which never worked out, but taught lessons still used today. I know I learned a lot in all the mistakes I've made, but when I've had a project which the principles were pretty much already straight forward, just needing to be done according to how I knew, I may have got the job done, and a nice job, but generally have learned far less than I do when things go wrong. I still have a distributor housing I made for my tractor, to use piezos, which never worked out, yet the housing and all the parts are still around, waiting for a second chance, and maybe success at some time in the future. Keep on this engine till it runs, and then move on, with lessons learned, and new skills. :headbang: mad jack

sorveltaja:
Finally back at home :beer:. It takes some time to get the lathe and mill to working condition, so no progress pics yet.

Also, other tools need to be spread around the apartment found.

Next step is most probably to make the head gaskets. Then perhaps sparking plugs. After that, carburetion, that is still an open case.

Brass_Machine:

--- Quote from: sorveltaja on May 04, 2010, 10:32:06 AM ---Finally back at home :beer:. It takes some time to get the lathe and mill to working condition, so no progress pics yet.

Also, other tools need to be spread around the apartment found.

Next step is most probably to make the head gaskets. Then perhaps sparking plugs. After that, carburetion, that is still an open case.

--- End quote ---

He is back! Looking forward to seeing this move forward.

Eric

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