V-Twin 100cc Design & Build

Today was a mix of things. Finished off 2 of the rockers in Silversteel, later to be hardened, rocker pin also from silver steel with circlips.

Made 2 of the port plates from stainless steel. I'll be silver soldering a sleeve onto these which will project into the port with an O-ring for sealing and will also allow the tubing to be soldered on.

Made the rear cam shaft housing which houses a roller bearing and has an oil seal.

And anodised the front prop plate.

For some reason Craig stopped posting here on his build but the engine is now completed and has been test run.

See it at this link **LINK**

Sounds good and seems powerful by the stats provided.

Emgee

Edited By JasonB on 14/01/2021 12:11:51

Very nicely done, look forward to seeing it in the aircraft though not sure I would want to risk all that work myself.

Hi all, apologies, with everything happening last year a lot of things changed and I didn't get around to posting here. To close off the post, the engine is now complete and i've had it running a few times. I'm pretty happy with the design and performance so far. Range at the moment is around 1300-5500rpm (on a 24x10 prop). I've now got it stripped down to check for any issues.

Hopefully if I can be confident in the performance I will get her up in the plane later this year. A few quick photos to close off.

But for now I am starting to dream up a single cylinder 50cc version using similar geometry

Edited By Craig Booth 1 on 16/01/2021 08:35:30