Thank you all for your ideas. I tried judicious use of PB Blaster (overnight) and prying from topside. Turns out the "deck fitting" is four pieces: two upright "U" shapes that hold the horizontal pin and a rather thin SS sheet under the U's. The pin has shoulders on both ends that prevent its withdrawal until the bolts are withdrawn.
I was able to wedge one the U's up about the thickness of two putty knives, but then things are a bit cock-eyed, and still resisting mightily. The bolts must be carriage bolts, yes. We are launching in 3 days. That leaves no time for fouling up, so I decided to wait until fall, and buttoned everything up to go sailing. I like the idea of pulling up from the top with centered C-clamp. More news on this in October/November. Adrian Humphreys Epilogue, Rockport ME C&C 33-2 adri...@telamontech.com > On Jun 3, 2023, at 8:06 PM, Dennis C. via CnC-List <cnc-list@cnc-list.com> > wrote: > > First, agree with the suspicion that the bolts are carriage types. > > Couple of off the wall ideas. > > Above the deck - Place a couple pieces of 2x4 on edge on the deck either side > of the deck fitting. Lay a strong piece of angle iron across them over the > fitting. Hook a large C-clamp under the pin in the fitting and on top of the > angle. Try to pop the fitting off the deck by tightening the clamp. Maybe > try one end first (two bolts) instead of the middle (4 bolts). > > Below the deck - Screw one of the existing nuts up several turns on the bolt > so several threads are exposed. Place a smaller size socket over the threads > and against the nut. Somehow position a hefty clamp (or two) on the downrod > so it contacts the socket. Or clamp a piece of 2x4 to the downrod under the > socket. Use an open end wrench to loosen the nut. Hopefully the nut will > press down on the socket which will be held by the clamp and the bolt will > rise. If successful, repeat for the other bolts. > > Failing that, resort to Special Tool H (hammer). > > Legal caveat: the ideas expressed above have no bearing in reality or past > experience. Use at your own risk.. > > -- > Dennis C. > Touche' 35-1 #83 > Mandeville, LA > > On Sat, Jun 3, 2023 at 8:43 AM Adrian C Humphreys via CnC-List > <cnc-list@cnc-list.com> wrote: > I want to re-bed the chainplate covers on my C&C 33-2. > > Please help me understand how they are fastened. I have undone the cabin-side > nuts on the 4 bolts, but they are resisting my efforts to withdraw the bolts > from the deck-side, where the bolts have round heads. > > A socket wrench on the cabin-side nuts unscrewed them easily without needing > a wrench on the deck-side. > Are the bolts welded to the covers? > > To lift the cover without damage to cover or boat: > Do you hammer on the bolts from below? > Do you lever the covers up from the deck side? > > Images here: > https://telamontech.com/epilogue/images/chainplateCabin.jpg > > https://telamontech.com/epilogue/images/chainplateDeck.jpg > > Thanks, > > Adrian Humphreys > Epilogue, Rockport ME > C&C 33-2 > adri...@telamontech.com > > > > Please show your appreciation for this list and the Photo Album site and help > me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu > > > Please show your appreciation for this list and the Photo Album site and help > me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at: https://www.paypal.me/stumurray Thanks for your help. Stu
