[C320-list] Keel Bolts

[Art Harden]

There is a torque recommendation based on the diameter and metal grade of the bolt. I have not looked at the chart in years but will see what I can find. It is based on the breaking strength of the bolt and varies based on thread size as well. As someone mentioned a lot goes into determining the torque value. 

Art Harden
Tortuga Catalina 320
937-477-5544 (m)

> On Mar 28, 2017, at 6:42 PM, Allan S Field <allan.field at verizon.net> wrote:
> 
> The Association at a CA Rendezvous did a factory tour in August 2004 with Gerry.  I wrote an article following the tour and then ran it by Gerry to proofread before I put it out to the membership.  My memory is that at the factory tour, Gerry told us something less than 235 pounds but corrected the article to say 235.  
> 
> In March 2009 I sent Gerry an e-mail asking about lube to the threads but got no reply to that, at least that I can find.  Another member at that time (Lamar Desmond) had asked about the lube so I suggested he also call Catalina and then let me know what was said.  I don't think there was follow-up on that as I would have noted that with the toolbox loaner program literature.
> 
> -----Original Message-----
> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Allan S. Field
> Sent: Tuesday, March 28, 2017 6:24 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Keel Bolts
> 
>   That is not something Gerry went into with me...
> 
> 
>   On 03/28/17, Chris Burti<clburti at gmail.com> wrote:
> 
>   There is a different schedule for torquing dry threads and dressed
>   threads- higher torque for dry. This might be the reason for multiple
>   numbers - different answers for different questions.
>   Best Regards,
>   Chris Burti
>> On Mar 28, 2017, at 4:19 PM, Jeff Hare <[1]Catalina at thehares.com>
>   wrote:
>> 
>> You might want to investigate the technique you'll use just a bit.
>   You may not get an accurate torque on the keel nuts unless you are
>   dealing with clean threads and a nut that turns freely against a clean
>   surface. Be sure it isn't frozen by loosening the target nut first and
>   inspecting the threads and giving the threads a shot of drylube or
>   Moly-kote or other anti-galling grease before going for the actual
>   torque value. Then move on to the next. You don't want to risk galling
>   the threads, so some lubrication might be important. BUT I DON'T KNOW
>   for sure.
>> 
>> These are my opinions, double check with someone who has a clue.
>   ��
>> -Jeff Hare
>> 
>> -----Original Message-----
>> From: C320-list [[2]mailto:c320-list-bounces at lists.catalina320.com]
>   On Behalf Of Bryan Morton
>> Sent: Tuesday, March 28, 2017 1:43 PM
>> To: [3]c320-list at lists.catalina320.com
>> Subject: [C320-list] Keel Bolts
>> 
>> I had a follow up the keel bolt information from Allan Field from
>   March 24th. I contacted Catalina directly on the Keel Bolt torque.
>   Catalina told me the bolts should be torqued to 100 ft lbs. I was
>   wondering where the 235 ft lbs number came from?
>> 
>> Best regards
>> 
>> Bryan 1994#32
>> 
>> "> Art - The Association, of which you are a member, has the torque
>> wrench (250 pounds), appropriately sized keel bolt socket (1.5-inch,
>> 6-point) and extension pieces available for loan through the toolbox
>> program. The boat needs to be on the hard with at least 75% of the
>> weight of the boat supported by the keel. The bolts get torqued to
>   235
>> foot pounds. To access the program, log-on to the website and submit
>   a
>> request. You only pay the outbound and return shipping charges! -
>   Allan
>> Field"
>> 
> 
> References
> 
>   1. mailto:Catalina at thehares.com
>   2. mailto:c320-list-bounces at lists.catalina320.com
>   3. mailto:c320-list at lists.catalina320.com
>