It isn't just a matter of a torque wrench.  It may require a torque
multiplier.  Most readily available torque wrenches won't do it.

Several on the list have done this and benefited by using a torque
multiplier.  Perhaps they could offer additional suggestions regarding
multipliers.  Something like this:

https://www.amazon.com/Neiko-20743A-Digital-Adapter-Foot-Pound/dp/B009GLITFW/ref=sr_1_19?dchild=1&keywords=Torque+Multiplier&qid=1587427046&s=hi&sr=1-19


The nuts must be backed off then torqued.  Most recommend torquing dry.  If
you lubricate them, reduce the torque spec 10%.

If the backing plates are mild steel, conventional wisdom suggests
replacing them with stainless.

Dennis C.
Touche' 35-1 #83
Mandeville, LA

On Mon, Apr 20, 2020 at 6:34 PM Chris Bennett via CnC-List <
cnc-list@cnc-list.com> wrote:

> For anyone interested, the keel bolt nuts on the C&C 24 are 3/4 inch at
> the front of the keel followed by 3 nuts that are 1 1/8". I found the
> forward nut (the only one I had a socket for) to be barely more than hand
> tightened. According to specs I found on the C&C owners site this should be
> at 80 foot lbs and the others tightened to 250 foot pounds. I plan to buy a
> suitable socket extension and torque wrench tomorrow for the big nuts...
>
> Chris
>
> On Mon, 20 Apr 2020 at 09:28, Chris Bennett <crben...@gmail.com> wrote:
>
>> Hi Mike,
>>
>> Thanks for the suggestions. I will test the torque of the bolts later
>> today if my socket is deep enough to do so. If they have not been tightened
>> for 35 years (and the original long term owner assured me he had never done
>> so) then maybe this is the issue.
>>
>> Regards,
>> Chris
>>
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