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Old 25 May 2014, 10:53   #1
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Cracks in transom supports.

Hi guys. 2002 Zodiac SRMN 600, with a heavy Honda 130 on it, has cracks along the base of the transom supports. I want to have these repaired and then I want to make some sort of support brackets (like my old Searider had) in order to prevent the cracks from returning.

If I fabricate some sort of support bracket that goes from the transom to the deck (between the two existing supports) will I be placing too much stress in an area that is not meant to be stressed? I know the Searider had a thicker deck area under its transom support brackets.
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Old 25 May 2014, 13:32   #2
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I think I'd be exploring that a bit more thoroughly than that. Do the knees go all the way to the bottom of the hull under the deck, or are they supported by the deck?

It looks like your deck might be a little weak (wet/rotten?) in there.
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Old 25 May 2014, 14:00   #3
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What nos said. Iooks quite serious to me :-(. That's alot of movement or the deck is blown/swelling making it pop up like the
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Old 25 May 2014, 16:17   #4
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Thanks for the advice guys, I will definitely look into it. Never worked with fiberglass before so any tips on how to determine if the deck has water damage?
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Old 25 May 2014, 17:21   #5
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Thanks for the advice guys, I will definitely look into it. Never worked with fiberglass before so any tips on how to determine if the deck has water damage?
I'd drill a very small hole you can seal easily into it down to the wood and see what comes out.Use a cordless-it might be very very wet in there.
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Old 25 May 2014, 18:33   #6
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I'd drill a very small hole you can seal easily into it down to the wood and see what comes out.Use a cordless-it might be very very wet in there.
Thanks. I will do that and update with pics. The transom says max weight is 436 lbs. I think that BF130 comes in at 500 lbs.

I also plan to install a hatch so I can see whats under the deck.. like this SRMN 600 has done:
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Old 26 May 2014, 08:56   #7
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Not the funniest job but in any case i would remove the gelcoat from the cracked area to inspect the GRP(and let it dry) as a starting point.
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Old 26 May 2014, 09:49   #8
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Hmmmm, looks a tad 'serious' to be honest and with a large engine on the back it would have been working those cracks when you were underway.

I hope it doesn't end up requiring major surgery like the one Biffer's presently working on but I'd be investigating it pronto...
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Old 26 May 2014, 11:59   #9
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I would bet that it's the floor and not the transom that's moving
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Old 26 May 2014, 12:21   #10
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Is it a fibreglass moulded deck?
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