[C320-list] Keel Ground or Zinc?

[bruceheyman at cox.net]

Rollie,
No by gaul I mean the two items have become one.  With enough pressure and time SS will "weld" its self.  When torquing keel bolts I've learned to first remove the nut, clean up the threads and then apply a good coat of Never Seize on the threads.  It is generally believed that torque wrenches are only accurate on clean threads and only after you've broken free any gauling or corrosion.
With 8 of the 10 torque to an incredible 235 ft-LBs and the last two frozen in place I'm not sure you have anything to worry about.
I'd check the box and call the item done.
Bruce
Somerset 671 SoCal
Sent via BlackBerry by AT&T

-----Original Message-----
From: argates2nd at comcast.net

Date: Sun, 15 Feb 2009 16:03:40 
To: <C320-List at Catalina320.com>
Subject: Re: [C320-list] Keel Ground or Zinc?




Bruce, 

By removing it, what do you mean? 

Gaul = bolt shaft spinning within the lead keel? 

My next steps are heat on top of the absorbed coke, and drilling/chiseling thru the nut.  Thanks, Rollie 


----- Original Message ----- 
From: bruceheyman at cox.net 
To: C320-List at Catalina320.com 
Sent: Sunday, February 15, 2009 10:32:18 AM GMT -05:00 US/Canada Eastern 
Subject: Re: [C320-list] Keel Ground or Zinc? 

At such high torques I would imagine the nut and shaft will gaul(sp?) Unless it was coated first with never seize.  I assume you've tried removing it? 
Bruce 
Somerset 671 SoCal 
Sent via BlackBerry by AT&T 

-----Original Message----- 
From: argates2nd at comcast.net 

Date: Sun, 15 Feb 2009 13:40:43 
To: <C320-List at Catalina320.com> 
Subject: [C320-list] Keel Ground or Zinc? 





I recently used the Assn torque wrench on my wing keel nuts and 8 of the ten torqued to 235 ft. lbs.  I went in a shallow slip and torqued once resting on the bottom at low tide. 

The other two are badly corroded and will not budge so far.  Yesterday I tried an impact wrench at 425 ft lbs from a rolling compressor! 



I have been applying liquid wrench for a week and naval jelly.  Yesterday I had a local suggestion of Coca Cola for 4-5 hours and then torch heat (if that works I am giving up drinking coke). 



It appears that the corrosion is due to electrolysis, or the two are not 316 SS.  Our bronze shaft zinc lasts well (more than a year) and we are in a large marina. 

Have others grounded their keel or put a zinc on the keel?  If so, what is the process? 



Rollie    #182      Charlotte Harbor, FL 





p.s.  the 1" 316 SS nuts have 8 threads per inch and are $6 from our local industrial supplier in Punta Gorda, and the Assn socket is 1 1/2" but I am now using a 

         1 3/8" socket since chipping away corrosion.