AR230 Woodruff Key Shredded

[Blazin14]

I just replaced my engine in my 2007 AR230, ran fine for a week, then shredded the woodruff key. Can anybody confirm the factory replacement key is 90280-03047-00 with flat edge? The flat edge key doesn't seem to match the key slot on the shaft and flywheel, which is my concern. Not exactly sure why it shredded, but the fly wheel bold/washer was not replaced when the engine was replaced, and per the service manual it states not to reuse. Putting new flywheel bolt in this time.

Confirmation on the woodruff key from someone who has replaced it would be helpful.

 

[Blazin14]

Also, which direction does the flat edge go? facing in or out?

 

[zipper]

I just replaced my engine in my 2007 AR230, ran fine for a week, then shredded the woodruff key. Can anybody confirm the factory replacement key is 90280-03047-00 with flat edge? The flat edge key doesn't seem to match the key slot on the shaft and flywheel, which is my concern. Not exactly sure why it shredded, but the fly wheel bold/washer was not replaced when the engine was replaced, and per the service manual it states not to reuse. Putting new flywheel bolt in this time.

Confirmation on the woodruff key from someone who has replaced it would be helpful.


View attachment 202537

That is the correct key part number. I looked in my service manual and saw this. Part no.. 21 below.
I have not done this on an mr-1, not sure which way to install the key, flat end in?



Found it, part no. 12.

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@Neutron may be able to verify which way that key is installed.