Author Topic: Let's talk about crankshafts--machined, built up, etcetera  (Read 3738 times)

Offline petertha

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Re: Let's talk about crankshafts--machined, built up, etcetera
« Reply #15 on: January 14, 2018, 07:53:52 PM »
The last material would be1144 stressproof steel. I was put onto this material many years ago by a good friend and fellow modeler and have never use anything else. It machines very nicely and distortion is minimal. gbritnell

I read your prior similar comments about this material a few years back & followed your advice. I'm only making a comparatively simple crank for a radial, but you are right, very nice stuff. Not easy or particularly cheap to get into Canada (USA suppliers) but fortunately not that many components to make. I believe you also used them for cylinder liners on one of you engines? I made a few testers for my radial including 12L14 & cast iron but think 1144SP will be the way I go for those too.