See full version: Omc stringer to mercruiser conversion kit
After the boat is all painted you are ready to cut the new hole into the transom.
You will need a Template, which is made by Mercruiser and a Drilling Fixture too.
The new motor will come with a template and drilling instructions. [links]
Preparation is critical.
ALL the old wood needs to be removed and you must grind and sand the areas where the sheets of glass cloth will be glued.
Our Transom Hole Adaptor Plates are no longer in production.
We use a pneumatic die grinder with a carbide wheel to cut out the inner layers of glass as so we can cut and chisel out the old transom wood.
We also take another sheet of cardboard and we trace the shape of the hole to it. This can then be used later on to cut layers of cloth to fill the hole from the outside.
Have other smaller squares of cloth cut out to tie into the stringers as well.
1) Order 3857377, this is the transom shield kit and you need it no matter what engine you have.
Gas Engines: AQ175, AQ205, AQ430, AQ431, AQ432, AQ434, AQ200, AQ225, AQ260, AQ211, AQ231, AQ271, AQ500, AQ570, AQ572.
2) Add a seawater pump kit according to the following table:
(The Cobra Outdrive had a seawater pump built-in)
For aluminum-bodied Delco 4-cylinder distributors with screw-down distributor caps.
FREE SHIPPING to anywhere in the USA
8-cyl Mallory Marine Distributors
3MAL8U1 - For 8-Cylinder Mallory Non-Vacuum-Advance Distributor
Anyone paint their fiberglass hulls? I am not crazy about the avocado green color. here
This should give you an idea of what you're in for.
Re: Filling the hole on an OMC to Mercruiser conversion? here
I just got back from the emergency room. I thought I ate some BAD Turkey, but it turned out it was just the shock of reading a Positive comment about a Glass boat from a Tin Can Admiral.
Seriously though, The only place I think Green looks good is on Armed Forces Landing Craft and I'm pretty sure they are NOT Glassers. [links]
Course, writing a check is waaaayyyyyy less work than DIY if ya want to go that route here