Just another crank run out thread
#11
Most of us check runout by bolting a small piece of mild steel angle to the motor case and attaching a quality magnitized base to that to which an accurate dial indicator is attached for a solid mount that will not allow any movement. I made a simple attachment from aluminum years ago for this purpose; photo attached. Since then, I have modified an early cam plate by cutting off the top just above the pinion shaft bore where I can mount a dial indicator. Point being however runout is measured the attachment of the dial indicator has to be solid, no movement.
The OPs cam plate is a from a later model; no o-ring grove so hydro tensioners and roller chains? If true runout is in the .003" to .0055", I agree with Purehybrid, retain the OEM cam plate, upgrade inner bearngs, new tensioner shoes and ride on.
The OPs cam plate is a from a later model; no o-ring grove so hydro tensioners and roller chains? If true runout is in the .003" to .0055", I agree with Purehybrid, retain the OEM cam plate, upgrade inner bearngs, new tensioner shoes and ride on.
After thinking about this for a few days I made the decision to pull the short block, easy enough to swap a crank but reached out to Hillside Cycles in hopes that I get a response to discuss me sending the case and crankshaft for inspection and options!
I have a few other bikes I can ride while this is in the works!
thank you everyone for your feedback
Jeff
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MFJones
Milwaukee Eight (M8)
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03-25-2019 09:16 AM