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2019-09-30; 09:56:00 EDT
Member Since
2019-09-28
Posts: 82
Wow! Thanks for the info. Sounds like that was quite a project. Hopefully all I will need to do is replace the gasket. I like the idea of bolts and washers.See the original archive post
On Mon, Sep 30, 2019 at 12:18 AM Graham Stewart <gstewart8 at cogeco.ca> wrote: > Mitch: > > Replacing the gasket is not difficult but is a major PITA. Any > reconstruction of the cap or flange is also a possibility and adds to the > pain. Good idea to check it out in the water before you take it all apart. > > Eventually, however, it will probably be necessary to do this job if for > no other reason than to replace the line and pulleys. > On my boat the removal of the cap was made infinitely worse by virtue of > the fact that some previous owner used 5200 sealant and then put fiberglass > over the top of the cap. As a result I broke the cap in two pieces getting > it off and damaged the housing flange with large gouges. Hopefully you will > not face that issue. No one else has reported a similar problem on this > list that I have seen. > > I would replace the screws with stainless steel bolts and use large fender > washers and lock washers.I think it is better to punch clean holes in the > gasket rather than drilling them. > > I did not think I had access to the proper gasket material and substituted > other neoprene material that I thought would work. As a result I could not > get a perfect seal without using a sealant. I chose to use butyl tape as it > makes an excellent seal but has very low adhesive properties and so is easy > to remove when the time comes. Butyl is not rated for underwater use but so > far has worked well for me in fresh water. Better to get the proper gasket > material. > > BTW, I was able to remove the cap and the centerboard while the boat was > on its trailer and have not heard of others needing to raise the boat for > that purpose but keep in mind that there appears to be a lot of variation > in the construction of the boat over the years and what works for one > person might not work in another situation. My boat is a 1976 model so it > has the older version of the centerboard. However, I would try to do the > work while on the trailer first and raise the boat only if that becomes > necessary. > > While removing the centerboard and fixing the enclosure cap and flange > could be done while on the trailer, I discovered that I had serious damage > to the bottom of the keel housing with a large crack that went almost > entirely around the housing slot. So in the end I had to build a huge lift > so that I could work under the keel. My lift was a major project in itself > and probably overkill as I later learned that one person was able to > support the stern of the boat on a picnic table and support the front with > some sort of sawhorse arrangement. So there are definitely easier ways to > do this than what I did. The advantage of the lift is that I can raise the > boat high enough (5' between the bottom of the keel and the ground) to work > more comfortably under the keel and can also use it for my other two boats. > However, it is a very large structure. I can send pictures of the lift if > anyone is interested. > > > Graham Stewart > Agile 1976 Rhodes 22 > Kingston Ontario > > > > -----Original Message----- > From: Rhodes22-list [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf > Of Mitch Mitchell > Sent: Sunday, September 29, 2019 10:34 PM > To: The Rhodes 22 Email List > Subject: Re: [Rhodes22-list] Replacing Centerboard Gasket > > Thanks JP! Did you have to lower the centerboard to replace the gasket? If > that' the case then I would have to get the boat off of the trailer. The > screws in the cap look good (not rusty) but there are no washers. I haven't > removed the top cap yet but thought I would put the boat in the water once > more with the floorboard out so I could see if it was leaking. MM > > On Sun, Sep 29, 2019 at 7:14 PM JP Dempsey <joedempsey at hughes.net> wrote: > > > Mitch, I had the same problem last year and finally determined that the > > centerboard gasket was the problem. They dry rot eventually. It is a > > "fairly" simple job that I ended up doing myself, but you'll have to > > purchase a new gasket. I would have purchased from Stan but the > centerboard > > trunk cover was cracked and needed repair that I was not willing to > > attempt. > > Also you want to be sure that you drill holes that will match the > existing > > holes in you CB trunk flange and cover. I have a large collection of > photos > > that I took during the process. Removal of the trunk cover begins with > > removing the port berth/settee and the supporting structure in front of > the > > companionway. You'll need to remove the center section of the floorboard > > (sole) that runs from the inspection hatch back to beneath the > > companionway. > > (I removed all of the floorboards and found that they were severely > molded. > > These I replaced with new marine plywood treated with wood preservative > and > > multiple coats of urethane marine varnish.) You will need to lower the > CB. > > I > > placed a block of wood underneath. Also you'll have to remove the painter > > tube between the companionway and the CB cover. If there is any rust on > the > > machine screws, replace them. McMaster-Carr is the best source. Use only > > 316 > > grade stainless steel. Also if your CB gasket is not fastened using > fender > > washers (mine wasn't) get them for both above and below the flange. I did > > all of this work while on the trailer during the off season. I believe > its > > also wise to re-seat all of the port lites and if you ever replace the > rub > > rail, re-caulk the topside/hull joint with 4200 Sealant. I'm attaching > > photos that I hope will help. > > < > > > http://rhodes-22.1065344.n5.nabble.com/file/t752/Cabin_Sole_Original_Sub_Floor_Before.jpg > > > > > > <http://rhodes-22.1065344.n5.nabble.com/file/t752/CB_Cover_w_Pump.jpg> > > <http://rhodes-22.1065344.n5.nabble.com/file/t752/CB_Gasket.jpg> > > <http://rhodes-22.1065344.n5.nabble.com/file/t752/Bilge_2_After.jpg> > > > > > > > > > > > > > > ----- > > JP Dempsey > > s/v Respite > > Rhodes 22 1989/2005 > > Marshall,VA > > -- > > Sent from: http://rhodes-22.1065344.n5.nabble.com/ > > > >
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