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

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sorveltaja:
Little more progression with breakers:

I machined a slot for an M3 screw, that is fastened to crankcase wall:

The screw hole was tapped and countersunk, to avoid the screw rubbing against crankshaft.

Now the breaker points set and holding plate can be fastened to engine's body.

On the uppermost pic is an M3 nyloc-nut, that takes care of fastening.

sorveltaja:
On the right side is a flywheel, that was used on the test engine. I might mod it to fit to the current engine. Another option is to use wood and brass combination, mahogany(on the pic) or maybe plywood.

sorveltaja:
Flywheel, and its fastening part:

That fastening part consist of brass rod and a square washer, that are silver soldered together. Washer needs two holes drilled for screws.

Brass rod will have an ignition cam machined to it:

There is enough room for two grub screws, just in case that the engine starts to kick like a mule.

One thing, that doesn't feel quite right, is that a flywheel must be attached so far from the bearing.

sorveltaja:
Flywheel + ignition cam combo is now finished:

I also filed small flats to crankshaft, for both grub screws.

Although the flywheel might look rather crude, it's almost balanced. Fine tuning comes later, if necessary.

Next thing is to make a head gaskets from thin copper foil, as that worked really well on the test engine.

shoey51:
i love this kind of project :thumbup:

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