I think the splash well tied the gunwales and transom together - but man that transom was super strong once I bolted it to the metal of the boat! The splashwell to me just makes it a system - sorta locks the gun wales and transom together if you know what I mean! I believe that all the elements of the transom combine to give it strength - the U channel that the wooden transom board sits int, the laminated transom board itself, the transom brace for preventing the bottom of the motor from pushing in and the splashwell. and cornder braces that are large to tie the transom into the gunnels The other makers have knee braces in several spots. its because they arent really for is starcrafts version of transom support, as much as it is for water deflection I think the splashwell on the ouboard models is mainly for transmom support.if we look at most other manufaturers, they dont have those huge splashwells. On an outboard it is totally supported by the transom!!! Heck there hardly any forces of torque on the transon of an inboard boat from the motors weight.the weight of the motor is completely supported by the hull floor.
Hanging an outboard off a gill bracket that is bolted to the transom of a stern drive boat.creates ALOT more amount of leverage and force than the inboard motor did!!!! I dont understand how anyone can with any kind of physics uldnt see that the needs of an outboard mounted transom differ a lot to those of an inboard. I think more damage comes from trailering and running on bumpy roads that the effect of the HP force on the transom while under power in the water!! You would need a lot more structural support on your conversion just to keep the transom sound for trailering on the road!!!
I took the splash well out of my 180SS man it is afixed all over the place!!! from the looks of it the islander I am going to get has no where near the amount of structural support.the weight is low and there is no moment arm of force to try and pry the transom up and down.
#INBOARD TO OUTBOARD MOTOR CONVERSION INSTALL#
the transom on an outboard designed boat should be much stiffer.i'd install some brackets that tied the top half of the transom to the stringers in the floor or a cross brace that is attached to the stringers. The transoms should be a lot different.on an inboard.they is very little potential energy.the weight is inside being supported by the hull floor.on an outboard it is cantilevered off the back.and has a moment arm. I just looked at some pictures of my islander, and the transom is angled way more than I might be 13 degrees after all!!! I would do the same project.and might still if my 6 cylinder mercruise cant come back to life. You will change the posture of the boat for sure hanging the motor way off the transom on a gill bracket.might have to forward weight that boat.like ballast up front.somethings that is static.( not like a fuel tank!!) you would have to add a motor mount.īecause for one.the top opf the transom is way to high!!! its like 40", as a matter of fact i just looked at the literature i just got for my islander, and it says the transom is indeed 40" high!!.maybe the SS is lower? My guess is that the angle of the transom on an I/O is not right for an outboard!!! I am having serious doubts as to wether that transom on my I/O is anywhere near 13 degrees!!!.looks like maybe 5 degrees at best.
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