steel supply

[graffian]

That's the sort of thing.

[John S]

They were only mild steel plate EN3B and nothing exotic as they were for an old vintage JAP engine and replaced two cast iron flywheels.

My take was that if the CI ones had lasted 60 years then the steel one stood an equal chance, in which case I wouldn't be around to have to fix them :heehee:

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[graffian]

Yes it's an old motor. Needs which needs new pinions and new crankpin, I could repair the original flywheels[they are forgings] and recover the pinons. But it's not much more work to make new flywheels and pinions? It would be rude not to stroke it. I will be able to use cheaper bearings, which will probably pay for the material and heat treatment. Stroking it is going to mean paring the area around the pin down quite a bit to balance it, so the extra expense of an alloy steel over EN8 is probably worth it.