Stihl 041FB oil pump washer question

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elittle

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I have an oil pump washer, part # 1110 on this saw. It doesn't sit on the crank perfectly, there is a small gap. The hole in the washer is bigger around than the circumference of the crank so it rattles. When the saw is running it sounds like a cowbell lol.

Is there a different part number for some of these farm bosses? I only see the 1110 part number.

There is also 2 holes on the crank seal area for a pin to go into. Is there a washer with 2 pins on it?

Thanks for any info.
 

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