Old 03-09-21, 09:53 AM
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Originally Posted by Alcanbrad View Post
It's hard to see much detail as the pictures are very small, but given the symmetric failure points right where the body of the adapter changes radius makes me wonder if there is a stress concentration situation going on. Is there evidence of cracking at the 4 and 10 oclock position of the second picture? Additionally, if the donut is aluminum there may be some galvanic corrosion coupled with a stress concentration that could weaken the metal.
Can you post larger pictures?
Here you go. Let me know if you want still bigger or other angles. No cracking at 4 and 10. It does appear to be aluminum. Thanks.

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