Crashsector
Cadet
- Joined
- Jul 22, 2011
- Messages
- 24
Morning all,
I figured I'd posted enough questions and done enough research for this project on iboats that I should put it all together in one write up.
My best friend for the last 10 years is an English expat. He shares his father's taste in all things vintage and stylish, so I wasn't surprised when I learned his father purchased this 1964 MFG 16.5' Edinboro runabout almost two years ago from the guy that lives next to his neighborhood launch ramp. The seller knew it had a broken trim cylinder on the repower he had installed about 10 years earlier, a 1994 Johnson 48SPL. He received an estimate for $800 to replace it and decided to cut his losses. Our gain!
This is her the first weekend we brought her home in mid summer 2011. The removable hard top sealed the deal - I was in love. This boat looked like it should be piloted by JFK himself. The deck was solid, top foam looked great, and the glass was REALLY thick on boats of this era.
Turns out instead of a full trim cylinder it just needed a plastic clip at the end of the cable (or so we thought). We planned to run it as-is by manually actuating the cylinder with a screw driver.
During our work on the trim cylinder we noticed a disturbing amount of flex in the transom. We decided to open it up and it was completely rotted - it made really nice compost! So we cut the inner skin and started scooping.
After everything was cleaned out and ground down we rebuilt the transom from two layers of 5-ply oak, soaked in epoxy. We transom was not flat, it had a slight curve which we traced on to a 1 x 6 and then used as a clamp once everything was in. We cut our transom pieces in to about 5 sections, scored them with a circular saw, and ground the edges and beat them in to the transom for a super tight fit. Here is everything trimmed down:
We got the outboard mounted back up the next evening and we were ready for shakedown!
The shakedown ended abruptly when the outboard died and we had to get towed in. We spent the rest of last season hunting down an ignition problem which we think we have now narrowed down to a bad power pack.
I figured I'd posted enough questions and done enough research for this project on iboats that I should put it all together in one write up.
My best friend for the last 10 years is an English expat. He shares his father's taste in all things vintage and stylish, so I wasn't surprised when I learned his father purchased this 1964 MFG 16.5' Edinboro runabout almost two years ago from the guy that lives next to his neighborhood launch ramp. The seller knew it had a broken trim cylinder on the repower he had installed about 10 years earlier, a 1994 Johnson 48SPL. He received an estimate for $800 to replace it and decided to cut his losses. Our gain!


This is her the first weekend we brought her home in mid summer 2011. The removable hard top sealed the deal - I was in love. This boat looked like it should be piloted by JFK himself. The deck was solid, top foam looked great, and the glass was REALLY thick on boats of this era.
Turns out instead of a full trim cylinder it just needed a plastic clip at the end of the cable (or so we thought). We planned to run it as-is by manually actuating the cylinder with a screw driver.
During our work on the trim cylinder we noticed a disturbing amount of flex in the transom. We decided to open it up and it was completely rotted - it made really nice compost! So we cut the inner skin and started scooping.

After everything was cleaned out and ground down we rebuilt the transom from two layers of 5-ply oak, soaked in epoxy. We transom was not flat, it had a slight curve which we traced on to a 1 x 6 and then used as a clamp once everything was in. We cut our transom pieces in to about 5 sections, scored them with a circular saw, and ground the edges and beat them in to the transom for a super tight fit. Here is everything trimmed down:

We got the outboard mounted back up the next evening and we were ready for shakedown!


The shakedown ended abruptly when the outboard died and we had to get towed in. We spent the rest of last season hunting down an ignition problem which we think we have now narrowed down to a bad power pack.