Starter Tooth Sensor Question

[Greg Hermann]

At 12:40 AM 12/11/01, bcroe at juno.com wrote:
>Yes, even if a tooth is a bit battered, it only represents
>a couple of degrees.  Battered or not, it will not be
>moving into the position of an adjacent tooth.  And the
>the shaft runout should be pretty small compared to
>tooth dimensions.
>
>A PIC ought to do it, if it can match the top RPM rate.
>But I won't be knocking a tooth off it, so something
>else will be needed for sync on the flywheel, and a
>second crude sync from the cam/distributor.
>
>The Hall devices I picked for experiments
>(MLX90217) claim to be self adjusting to things
>including gear wear, rise time of .4 microsecond,
>and 15KHZ bandwidth.  That sounds like they could
>do the job.  I understand the OEMs putting a nice
>missing tooth wheel in their engine, but those of
>us trying to upgrade 70s engines just have to make
>do with what we have.
>
>Bruce Roe
>
Right on, Bruce!

GReg


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