The belt has been on there since just after I bought the car, so it is due to be replaced (5 years or 100,000 ks). It has only done 30,000 but I have pushed this little engine to the limits in that time.
The shaft is not just scored, it has a fairly deep groove chewed into it.
Since this is a weak spot on the dirty 30, I also thought of spot welding the two new plates to the sprocket before I fit it all up.
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