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Old 09 March 2015, 16:27   #1
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Filling a I/O hole in the transom

Does any one have any advice on the best practice to filling in a hole in a transom where the inboard leg used to be .
Thanks in advance
Jono
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Old 09 March 2015, 16:43   #2
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oohh ooohh ooohh pick me! pick me! I've done that!

It's not that hard (time consuming and you get to be covered in fiberglass dust) or even terribly structural I think. especially when you figure you are bolting the giant outboard bracket over it. I'm sure it could be done with less effort, I bet Ryan has a easier method, but I just made a 2 x 3/4" plywood plug and epoxied it in place.

Grind all inside edges back to clean fiberglass or down to the foam and grind around the edges of the hole in a 12:1 ratio of the thickness of the fiberglass skin. I think it was 1/4 so you grind 3" all round it. Epoxy the plug in place with thickened epoxy (wood flour works nicely) and then overlapping layers of fiberglass until it's level. That according to the fiberglass guys I got my lessons from will create a patch as strong as it was before.

You can see me in all my naivete, Bateau2 - Builder Forums • View topic - 24' Zodiac Project

That is a great fiberglass site. They are good with advise and (shocker) they sell everything you need. The epoxy the sell is good stuff. Less expensive and easy to work with. The 2:1 ratio is good for when I was learning.
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Old 09 March 2015, 17:03   #3
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Iv done this take a look on my rib refurb post. It's not to hard but needs to be done properly
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Old 09 March 2015, 17:31   #4
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Great thanks for the tips Jason i thought i had seen you do something similar
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Old 09 March 2015, 17:36   #5
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Thanks MAT856 looks like you replaced the whole of your transom whereas i just have a big ass hole to fill in ( no pun intended)
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Old 09 March 2015, 17:50   #6
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Quote:
Originally Posted by jonoadams75 View Post
Thanks MAT856 looks like you replaced the whole of your transom whereas i just have a big ass hole to fill in ( no pun intended)
Is the strongest way to do it. Iv but a 225 on the back so wanted it strong as poss. May need more power 1 day
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Old 09 March 2015, 17:52   #7
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Old 09 March 2015, 17:54   #8
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Old 09 March 2015, 22:22   #9
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Wow looks great so you filled the hole then fibreglassed the transom again ?
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Old 10 March 2015, 03:04   #10
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Ye it's the strongest way as it's supported through the hole transome
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