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I am looking to rebuild the engine from my '67 (?) K-750M. I have never rebuilt one of these before, so I am looking for any tips/techniques/traps associated with this engine. I've been reading a lot of bike rebuild stories from this and other sites, but I haven't found a thread dedicated to rebuilding these engines. Any suggestions/advice?
My dear comrades, For the victory of the socialism and for the greater good of the working class I have begun to work at the new project: KMZ K750 first model with the short frame. I have buyed this bike as parts, ones I had the frame, after that the sidecar, the engine, I have found a fork and a gearbox, I had the luck to find at a very good price two new Dnepr complete wheels and I am still buying... The bike has no document but I estimate the production year of the frame is from the '50s. I have started as always with the engine, I have picked a good engine housing with no cracks or threads problems:
Does anyone have any advice on refinishing cylinders on side valve motors? I am working on an engine rebuild and I need to clean/refinish the cylinders. I was considering either getting them hot tanked/sonic cleaned at the machine shop, or sand blasted. Then I guess painting them with engine paint. I have seen what looks like un-finished cylinders. Cleaned and left natural. Is that a thing? I don’t mind patina, but I don’t want rust/flaking paint. What do you suggest?