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Old 03 December 2014, 14:09   #11
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150hp on my Scorpion 6.5m is offset to starboard.
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Old 03 December 2014, 16:30   #12
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From my initial inspection there seems to be nothing wrong with the transom. The excessive use of sealant has probably ensured that. I believe the transom is plywood sandwiched in a few layers of matting. A lack of integrity would be caused by absorption of water into the plywood causing delamination, swelling, and pressure cracking of the matting skin. None of these issues are apparent. Is there anything else I should look for?

In response to a previous question the tubes are blue. A photo is attached.
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Old 03 December 2014, 18:08   #13
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The original mounting holes had been badly filled with silicon sealant (removed on Saturday). Even worse, the engine had been mounted with lower bolts that were ordinary steel. I removed them on Saturday, and they had rusted to about 2/3 of their original diameter.
All of what you've said above VERY strongly suggests to me that there will be significant water ingress into the ply core of the transom.

You won't necessarily see any external symptoms yet.

Check it out very very carefully.
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Old 04 December 2014, 05:15   #14
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All of what you've said above VERY strongly suggests to me that there will be significant water ingress into the ply core of the transom.

You won't necessarily see any external symptoms yet.

Check it out very very carefully.
Spot on
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Old 04 December 2014, 08:35   #15
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Now I wish I had never asked.
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Old 04 December 2014, 09:07   #16
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Hallo maybe the offset motor is to make room for a small reserve motor.
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Old 07 December 2014, 13:49   #17
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The two lower engine mounting bolts. This is what happens when plain steel is used in a marine environment. I judge these to have very little useful life left. Work will progress to remove the engine so that the transom can be inspected.
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Old 07 December 2014, 14:32   #18
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Ouch. They really don't look good.
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Old 08 December 2014, 04:42   #19
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Quick test on the transom would be to drill a small hole, if you get steaming wood chips on the drill bit you can work out that it water saturated, a small hole can easily be plugged


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Old 08 December 2014, 07:55   #20
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There must have been be rinsed water inside of the transom wood beside
the rusty bolts. If you donīt ride during winter time, i would take out
all bolts, and open the bad sealed holes too. Give the transom a (winter)
time to dry. May be a heater, combined with a timer can warm up
that transom aera some time every day, to let in dry out quicker.
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