1988 Henry O Hornet 17 Transom Rebuild w/ SeaCast

I don’t claim to be an expert at this. Every single hull repair is unique and requires it’s own diagnosis and repair strategy. For instance, Henry O hulls have no conventional stringers. So, I had no worry there. If this was a hull with wood stringers and/or keel, this job may have been much much different. May not even have been worth doing. So, don’t launch on doing what I did without having a really good educated professional level help. This sequence was the result of of the specific conditions of this hull, its design, and my desire to extend its life. Bought the boat from my Dad and have had my own grand kids in it. I don’t get attached to cars and boats, usually, but, this one is worth keeping.

Paraphrasing Vice Grip Garage on the You tubes, I’m an idiot. Don’t do what I do.

That said…

The situation: a 1988 17’ Henry O dual console that has about an 8 yr old tank. Motor finally died its final death. (Anyone want some good OMC 90 degree V4 parts. Replaced most of the ignition system just prior to her eating a second piston. Trim/tilt works. Foot unit worked when she stopped running.) The hull is exactly what I want. The right size and shape. Gets into relatively shallow water ( about 12"). Goes to the near shore reefs confidently. Tows well behind my 3500 lb capacity smaller SUVs. So, figured we’d repower. When pulling the old motor, began to notice worrying things. The motor bolts came out wet and dirty. With the motor off, it was clear that the motor bolts had compressed the transom significantly. Oddly, the motor was not lose. So, pulled floor drain brass tubes. More mud. Pulled D-Rings from outer transom corners. More mud. Drilled several 1/4" exploratory holes. Oddly most of those brought dry shavings. But, there was enough evidence of core deterioration to push the decision to redo the transom. Didn’t want to hang $14k new power on an iffy back end.

Old girl looking a little weary.
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Great job & great story behind it.
I’ve tried a couple small fiberglass repairs & I’ve always struggled. I guess there’s an art to it.


[navy]Sportsman Masters 207 Yamaha F150[/navy]

Thanks for taking the time to not only post the pics, but to explain what and why you were doing the work.

Great job, really, and a great read too.

This place could use more of those type contributions, thanks again.

Areeldrag, I’m happy to share what I know. Sent a flair if you get the itch to play with fiberglass, again.

And, Edisto, thanks. This site is dying and its a real shame. Used to have a very active fly fishing section that never gets any posts anymore. Mad Mike and others were a wealth of info. Because of those guys, 90% of my fishing is with a fly rod, now.


--------------------------- 17' Henry O Hornet w/ Yamaha 115 26' Palmer Scott project hull 14' Bentz-Craft w/ Yamaha 25

Thanks, I’ll hit you up next time I give it a try.


[navy]Sportsman Masters 207 Yamaha F150[/navy]

Great post.
I’ve never been scared to tear into something and usually have good success. But I figured that was a bit much for me to play with.

I sold about years ago on the cheap because of some soft spots in the transom. Oh boy fixed it up himself and still has the boat.


You find things offensive. I find things funny. That's why I'm happier than you.

22 life’s a day

the awesome builds that are now gone are a true shame. Thank you for giving us all your build. Sadly this will probably be gone along with all the fantastic stuff that used to be here. F the new admin for deleting so many awesome builds and topics on this thread. Memory is cheap, why so many deletes??? So much cool stuff from fresh water topics to the top tier Off shore stuff… all gone. so sad.

guess I should get used to this sites death. so many facts of interest and posts of knowledge, all gone. Really is memory so expensive that you have to delete so many fantastic posts of knowlege and blood and sweat projects? come on admin. Polly, Ef, and all you others that have admin registered names… what gives? for sure f politics, but why f fishing stuff?!

true fred ; I still miss reading and seeing Cracker Larrys posts on his projects and builds


George McDonald US Navy Seabees,Retired, MAD, Charleston Chapter [http://www.militaryappreciationday.org

When you see “Old Glory” waving in the breeze, know that it is the dying breaths of our fallen hero’s that makes it wave.
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