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Transom Questions |
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karthur 
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Joined: July-11-2011 Location: SE USA Status: Offline Points: 102 |
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 Topic: Transom QuestionsPosted: July-13-2011 at 2:07pm |
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I am drawing up some new brackets for the swim platform. I am going to have bolts running all the way thru the transom and thru a backing plate inside.
Couple questions: 1. How thick is the transom? 2. How much room is there between the inside of the transom and the fuel tank? I have a 87 SN. Here is a pic of what I have so far. 
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75 Tique
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Joined: August-12-2004 Location: Seven Lakes, NC Status: Offline Points: 6130 |
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Posted: July-13-2011 at 2:32pm |
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Transom, I am guessing is between 1/4 and 3/8 thick. Can't say for sure how far gas tank is from transom but certainly enough room for backing plates and nuts, as that is what I have (1/4 inch aluminum plates)
You probably won't be able to through bolt the lower attachment as the floor covers that area. 
The lower part of the bracket is typically screwed as the upper bolts carry all the weight and the lower are just to secure the bracket. |
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karthur
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Posted: July-13-2011 at 2:45pm |
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Ok, thanks. I am trying to eliminate that little screw in the bottom. I might have to move my lower plate up closer to the top one.
Also, instead of putting a nut on the backing plate, I think I will just tap the plate since you cant access the nuts if they were to work loose. Is that a removeable bracket that I see in your pic? Where'd you get those from? |
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DrCC
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Posted: July-13-2011 at 2:55pm |
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You could probably eliminate the 4 bolts in the middle.
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DrCC
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Posted: July-13-2011 at 3:05pm |
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8 bolts per bracket, to me, seems like massive over-kill.
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: July-13-2011 at 3:13pm |
Al, You're looking at the bolts that hold the "cover plates" onto the base forming the "T" slot. |
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karthur
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Posted: July-13-2011 at 3:20pm |
Yea, probably could, but since these are only 1/4-20's I thought it wouldnt hurt. Might change it to three per side instead of 4 though. Something like this... 
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ny_nautique
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Joined: June-01-2011 Location: Albany NY Status: Offline Points: 1215 |
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Posted: July-13-2011 at 3:42pm |
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Didn't somebody do the exact same thing here not too long ago? I can't find the thread though.
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karthur
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Posted: July-13-2011 at 4:03pm |
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I have trouble getting the search to work on the forum.
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Keeganino
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Joined: October-27-2009 Location: North Carolina Status: Offline Points: 2063 |
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Posted: July-13-2011 at 6:54pm |
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Neat design. Would be nice to be able to remove the platform to oil the underside.
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"working on these old boats may not be cost effective but as it shows its what it brings into your life that matters" -Roger
1973 Skier |
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75 Tique
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Joined: August-12-2004 Location: Seven Lakes, NC Status: Offline Points: 6130 |
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Posted: July-13-2011 at 7:09pm |
Alloy Marine Their new website shows a new design only, but says they still have the traditional design available. Also see the page on rise and swing. I believe you can also get these through mycorrectcraftparts.com, a vendor/active member (boat dr) on the site (actually, his wife) About $200 for the pair, last I recall, from Alloy. |
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“So, how was your weekend?” “Well, let me see…sun burn, stiff neck, screwed up back, assorted aches and pains….yup, my weekend was great, thanks for asking.” |
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karthur
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Posted: July-13-2011 at 8:30pm |
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Larry,
Thanks for the link. Think I will make these myself. Guess I will have to wait about where to put the lower set of holes until I get my tank out and see whats actually there. Hopefully I can eliminate that one small screw at the bottom. The futher apart I can keep them the better, but I am replacing this #10 woodscrew with two Ø5/16 bolts (may have to use only one bolt). I should be able to move it up some and still be stronger than the original design. |
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DrCC wrote: