I have a couple of XS1 cams that I need to rework, *someday*.
Was contemplating a simple lathe project to renew the oilseal grooved cam ends.
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There's enuff meat and room there to steadyrest the end, and turn down about 0.015" - 0.020" of the outer 1/2".
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One end has a keyway slot, making steadyresting a challenge.
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Could slide a single bearing on there, clamp it in the steadyrest fingers.
Still enuff room to get a cutting bit in there.
After turning this shoulder, fit and bond a sleeve onto the end. Doesn't need to be a press fit, doesn't need to be accurate, just bond an oversize sleeve on there. It's not a load bearing area.
After bond cure, turn it down to match the original 25mm. That way the original cam bearing installation procedure is unimpeded.
Also, the original cam ends have an overly generous edge bevel, which robs the cam seal of precious contact width.
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After the final sleeve turning and end-facing, only a gentle rounding of the end edge need be done, making the end full-length, giving the seal more purchase.
Too much on my plate for this now.
Whut say you, lathe guyz?