Yes John you do have a boat problem  J

 

I assume the topside of the binnacle is good?  Issue will be corrosion.
Stainless to aluminum is an issue.  What are the bolts interacting with
below deck?  Other thought is the aluminum bolts lasted many decades without
damage to the binnacle.  Any luck googling for causes of aluminum bolts
corroding / failing?  Legacy's aluminum bolts are fine by all accounts after
40 years.  One possibility is the nut loosened, allowing the bolt head to
loosen just enough to allow water to seep in and cause corrosion.  Just some
thoughts.

 

Best of luck

 

John Read

 

From: John McCrea via CnC-List [mailto:[email protected]] 
Sent: Friday, November 19, 2021 4:19 PM
To: 'Stus-List'
Cc: [email protected]
Subject: Stus-List Edson Steering Sheave Assembly Bolt Failure.

 

All,

 

I was aware that my bolts in my steering assembly below the pedestal were
failing when I noticed a gap on the bow side of the sheave assembly this
summer. After trying to tighten one of the aluminum bolts it crumbled. Had
two remaining good ones in the stern and limped the way through the
remainder of the season. Today loosened the steering cables to start to take
apart the assembly with the intent of fixing in place with new bolts. Having
had a similar but more catastrophic failure on our past 1989 37/40 XL I can
see that the assembly itself is in good shape. My question is the use of the
aluminum bolts. Since that is what failed should I switch to stainless? May
be a good question for Rob Ball but wanted to see what others have used.
Thanks!

 

John McCrea

Talisman

1979 36-1

Mystic, CT

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