I'm only going to provide an answer to Question No. 5. Use Tef Gel on the threads.
https://ca.binnacle.com/p8658/Ultra-Tef-Gel-20cc-Syringe/product_info.html?gclid=CjwKCAjwzY2bBhB6EiwAPpUpZubJY_3lTeOZZP05XWuIGzNR-xa-fE5ikq7vZtBetB1BfZCYAGwusRoCLhYQAvD_BwE Ken H. On Tue, 1 Nov 2022 at 16:51, James Hesketh via CnC-List < cnc-list@cnc-list.com> wrote: > My boat is a ’78 C&C 26. It’s a Florida boat and has spent all its life > year round in salt water. I’ve had her for a few years now and I found the > infamous “Smile” when I hauled out yesterday and have a few questions about > re-torquing the bolts. After sanding in prep for paint I can see previous > smiles have been repaired. > > > 1) From the Keel Bolt Specification chart in the C&C Photo Album it shows > the torque spec to be 350 Foot Pounds for the 1-inch bolts. Is Ft-Lbs > correct or could that be Newton Metres? > > > 2) I have three 1-inch bolts and one 1/2-inch bolt that is furthest aft. > The Spec Chart lists a 1 1/2-inch nut for the 1-inch bolts. Mine are 1 > 5/8-inch. Does that mean these might not be original, or could C&C have > sometimes used different size nuts? > > > 3) All three of the 1 5/8-inch nuts have various stages of pitting, I’m > assuming it's from electrolysis. The deepest pits appear to be about 1/8th > inch deep. I’ll remove one nut and take it with me when searching for > replacements to make sure I have the correct thread pattern. The question > is: do I worry about the bolts themselves, or leave them be following the > ignorance-is-bliss principle? > > > 4) I once had a SS nut on a SS all-thread keel bolt gall when I was > removing it — which caused all sorts of complications. I'm terrified of > that happening here. Any tricks or suggestions to lessen the chance of that > happening, especially since I suspect electrolysis issues? Also, I will > need to cut about a 1/2- inch off the tops of two of the 1-inch bolts to > get my deep socket onto the nuts (the bolts currently protrude 1 3/4-inch > above the nuts. Will the heat from cutting through them contribute to or > lessen the chances of galling? > > 5) When re-torquing should I use some sort of anti-seize or torque it dry? > > > Thanks in advance, > > Jim Hesketh > C&C 26 - Whisper > Miami, FL >
