Older Edson pedestals use 4” Countersunk flathead bolt and nuts made of aluminum. The reason for that material was to minimize paint adhesion issues on the powder coated pedestal base. However, Edson neglected to use aluminum idler plate assemblies below deck choosing to use painted steel which meant that over time, the idler would rust and the bolts would eventually corrode. EDson did away with the mild steel idlers about 15 years ago and now makes them out of aluminum. The best set up for your boat is probably a new idler and 4 new aluminum bolts which will minimize corrosion issues. Chuck Gilchrest Half Magic LF35 Sent from my iPhone
> On Nov 20, 2021, at 12:26 PM, CHARLES SCHEAFFER via CnC-List > <cnc-list@cnc-list.com> wrote: > > > > FWIW, found this on Edson site: > > "Since 1987, all Edson Pedestals use the exclusive Edson Hex Head Aluminum > Bolts. With this improvement they lock in place and require only one person > to tighten them. They fit flush with the base and the aluminum alloy is the > same as the base thus eliminating all reaction from dissimilar." > > Chuck S >>> On 11/20/2021 10:50 AM Jeffrey A. Laman via CnC-List >>> <cnc-list@cnc-list.com> wrote: >>> >>> >>> C&C Listers, >>> I have only been casually following this thread, but just a short comment. >>> My pedestal bolts are SS and in fresh water of L. Mich. Might have been PO >>> who replaced? No issues. Aluminum is actually a very reactive metal. This >>> is a good discussion for a chemist, but if exposed to salt water, it would >>> seem that aluminum bolts are not the best choice. If there is concern >>> about the dissimilar metals of the pedestal and bolts, isolate with nylon >>> washers. My 2 cents. >>> Jeff Laman >>> 1981 C&C34 "Harmony" >>> Ludington, MI >>> >>> >>> From: CHARLES SCHEAFFER via CnC-List <cnc-list@cnc-list.com> >>> Sent: Saturday, November 20, 2021 10:38 AM >>> To: Stus-List <cnc-list@cnc-list.com> >>> Cc: John McCrea <johnmcc...@comcast.net>; CHARLES SCHEAFFER >>> <cscheaf...@comcast.net> >>> Subject: Stus-List Re: Edson Steering Sheave Assembly Bolt Failure. >>> >>> Not sure why the the aluminum failed. It sounds like it became an anode >>> somehow. >>> >>> In 2015, I replaced our pedestal bolts and nuts with aluminum ones from >>> Edson. On our model, the hex head of the bolt, sits in a hex sided well in >>> the pedestal base so it doesn't turn. You tighten the nuts from below. >>> The old bolts might have been reused, but something about them worried me, >>> so I chose to use new bolts and nuts. >>> >>> I learned later that McMaster-Carr has both aluminum and stainless which >>> you can get next day, so you may want to compare prices. >>> >>> Chuck Scheaffer Resolute 1989 C&C 34R Annapolis >>> >>> On 11/20/2021 10:08 AM John McCrea via CnC-List <cnc-list@cnc-list.com> >>> wrote: >>> >>> >>> Yes they are the four through bolts that hold the pedestal in place. I will >>> contact Edson for replacements just curious if anyone else had them fail. >>> Will also be resealing pedestal to stop water intrusion. Thanks. >>> >>> Sent from my iPhone >>> >>>> On Nov 20, 2021, at 8:02 AM, Steve Thomas via CnC-List >>>> <cnc-list@cnc-list.com> wrote: >>>> >>>> I believe that the bolts in question are the through-the-deck bolts that >>>> secure the pedestal to the deck. They are also the only aluminum bolts >>>> that I know of that were once "standard" on Edson pedestal steering >>>> systems. If I am wrong on the latter, I am certain that others will chime >>>> in. :) >>>> Steve Thomas >>>> >>>> 1980 C&C36 MKI >>>> >>>> 1978 C&C27 MKIII >>>> >>>> >>>> >>>> ------ Original Message ------ >>>> From: cnc-list@cnc-list.com >>>> To: cnc-list@cnc-list.com >>>> Cc: shawngwri...@gmail.com >>>> Sent: Friday, November 19, 2021 8:42 PM >>>> Subject: Stus-List Re: Edson Steering Sheave Assembly Bolt Failure. >>>> >>>> Can you share any photos of the bolts in question? Are these above deck, >>>> or below? I'm not aware of any aluminum bolts in my pedestal, but they may >>>> have been replaced with stainless steel. There is one SS round head >>>> machine screw that is loose and has no material left to grab (threads >>>> stripped out) on one of the aluminum pieces which fit over the SS tubing >>>> at the deck level. As the pedestal is solid, I've ignored it for now. >>>> Everything below deck looks good also, but it's been a year since I >>>> checked so it's on the list. >>>> >>>> -- >>>> Shawn Wright >>>> shawngwri...@gmail.com >>>> S/V Callisto, 1974 C&C 35 >>>> https://www.facebook.com/SVCallisto >>>> >>>> >>>> On Fri, Nov 19, 2021 at 1:19 PM John McCrea via CnC-List >>>> <cnc-list@cnc-list.com> wrote: >>>> All, >>>> >>>> >>>> >>>> I was aware that my bolts in my steering assembly below the pedestal were >>>> failing when I noticed a gap on the bow side of the sheave assembly this >>>> summer. After trying to tighten one of the aluminum bolts it crumbled. Had >>>> two remaining good ones in the stern and limped the way through the >>>> remainder of the season. Today loosened the steering cables to start to >>>> take apart the assembly with the intent of fixing in place with new bolts. >>>> Having had a similar but more catastrophic failure on our past 1989 37/40 >>>> XL I can see that the assembly itself is in good shape. My question is the >>>> use of the aluminum bolts. Since that is what failed should I switch to >>>> stainless? May be a good question for Rob Ball but wanted to see what >>>> others have used. Thanks! >>>> >>>> >>>> >>>> John McCrea >>>> >>>> Talisman >>>> >>>> 1979 36-1 >>>> >>>> Mystic, CT >>>> >>>> Thanks to all of the subscribers that contributed to the list to help with >>>> the costs involved. If you want to show your support to the list - use >>>> PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu >>>> Thanks to all of the subscribers that contributed to the list to help with >>>> the costs involved. If you want to show your support to the list - use >>>> PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu >>>> Thanks to all of the subscribers that contributed to the list to help with >>>> the costs involved. If you want to show your support to the list - use >>>> PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - >>>> Stu >>> Thanks to all of the subscribers that contributed to the list to help with >>> the costs involved. If you want to show your support to the list - use >>> PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu >> Thanks to all of the subscribers that contributed to the list to help with >> the costs involved. If you want to show your support to the list - use >> PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu > Thanks to all of the subscribers that contributed to the list to help with > the costs involved. If you want to show your support to the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
