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Connecting rod nut backed off?

wajetter

Well-Known Member
Messages
52
Reaction score
25
Points
47
Boat Make
Yamaha
Year
2006
Boat Model
AR
Boat Length
23
Is it possible that a connecting rod nut would back off on its own and cause a spun bearing and the crankshaft to burn a little ? Or does a spun bearing cause the nut to back off?


I found out that the knock was a spun bearing in this thread

I wanted to post a specific question to see if anyone had this happen.

I would assume that a spun bearing would not normally cause the nut to back off. Yes, a spun bearing will result in more space and therefore the knock, but would the knock back off a properly torqued nut?
 

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