Ruggerini Engine upgrade.

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Michael Gilbert
I don't post much...
Posts: 5
Joined: Fri Sep 14, 2018 3:12 pm
Location: Cranleigh, Surrey, UK

Ruggerini Engine upgrade.

Post by Michael Gilbert » Sun Jan 05, 2020 11:22 pm

Hi All, I am the proud owner of a Yanmar clone Enfield which I enjoy enormously. I have been considering an engine upgrade and after much deliberation I've decided that a suitable contender would be a Ruggerini MD151. Before I seriously start hunting for an engine there is a problem that I'm having trouble getting my head around, that's how to fit the engine sprocket.
The Yanmar (Winsun) has a 1" parallel output shaft and the sprocket slides on with a conical arrangement and locks in place on the keyway with grub screws. All the MD151's that I've seen pictures of have short tapered shafts, and I cannot visualise how to fit the drive sprocket.
If anyone has overcome this problem and would be willing to share said knowledge I would very much appreciate it. Michael.

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