27 o'day outboard engine

[Paul]

Hello. I have a 27 ft O’day that needs a new engine. I thought about a new diesel, but the cost is more than the value of the boat so I think I am going with the outboard…unfortunately. Now my decision is engine size and shaft length. The boat came with an 8hp diesel. I was told that it is equivalent to a 14hp gas engine. I was also told that I could use a 9.9hp gas if it is a “High thrust” engine. I am a little confused at this point so I would appreciate any advice from someone who has tried some of these options.O…one more question. I plan to remove the old engine and use the area for storage…any thoughts on how it might effect the ballast situation?ThanksPaul

 

[Trevor - SailboatOwners.com]

Outboard options

Hi Paul -I would think that the 9.9hp gas motor would do the trick. I had a 10hp inboard diesel on my Islander 28 once upon a time, and I felt it had adequate power. Regarding trim, reducing weight is almost always a good thing, so I wouldn't worry about it. Your inboard engine is more or less in the center of the boat (ok, maybe a little aft), but I'd be surprised if you had a trim problem. I would expect a little more zip under sail with less weight!Best,Trevor

 

[Doug Dannen]

272 with OB

I have a 272 with a outboard 9.9 with a long shaft. The 9.9 brings it up to hull speed without a problem. The boat was set up with the option originaly. It also increases storage space below and without the oily smell. Another advantage= Your can lift the prop out of the water to decrease drag.

 

[Chip Chalker]

272 outboard

I have an 87 272 with a 9.9 hp Yamaha. This works very well, bringing the boat to hull speed with no problem. It has more than adequate power to move the boat along in the lake where I operate (protected waters). Don't know how it would perform in coastal areas fighting currents. Although as well as it does in the lake, I would expect that no problems would be experienced. You will find that an outboard on this vessel will present another challenge. When the outboard is powering the boat, it sits low in the water. This makes it necessary to lean through the rear railing to start the engine,change gears, and operate the throttle. You will need a little practice with this before attempting docking in challenging conditions.

 

[Clint Abbott]

O'Day 27 Outboard

I have a 1978 O'Day 27 - it originally had an OMC saildrive, but I pulled this when it was past the rebuild stage. Replacement with a volvo was far too expensive, as were any other options. I installed an outboard, with a very heavy duty adjustable bracket. My first motor was a 8hp Honda. This worked very well - in all ocean conditions, except with large swells. I lowered the mount 2 inches, and this helped out. It achieved hull speed without problems, however reverse was NOT very good. As well, reaching down, through the railings, to shift and start often caused BIG problems. This year, I replaced the motor with a new Yamaha 9.9 extra long shaft, high thrust, electric start with remote controls. This setup is prime. The convenience of an inboard, without the smell. The leg tilts up for faster sailing, and the charging is 10amps!! No problems at all in any strong currents.