O'Day 192 Outboard Size??

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Tim

I'm looking for guidance for the correct outboard HP for an O'day 192. The boat came with an old Johnson 4 HP which I'm going to replace. I'm thinking of either a 4 HP or 5 HP. What do other 192 owners think? Which small 4 stroke is best? Thanks. Tim
 
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Dave K

Outboard for 192

I read an article by a boat surveyor who said he looks for 2 horsepower for each 1000 lbs of displacement as adequate power. My experience using a 2 hp Honda on my 192 confirms this - it's a bit small for the 192's 1400 lbs. It's fine for maneuvering and motoring home when there's no wind. It will push the boat well enough into a 15 kt headwind, but it's very slow going if there is more wind than that. On the other hand, the Honda 2 weighs only 28 lbs, is air-cooled (so it never has to be flushed) and it recently made the 30 mile trip from Long Beach to Catalina Island using just over 1 gallon of gas. That's running seven hours straight at 3/4 throttle which gave a speed between 4.5 and 5 kts. If I were buying a new motor for my 192, I think I'd look most seriously at the Tohatsu/Mercury/Nissan 3.5 hp. 4 stroke. Even with a long shaft, it's still just under 40 lbs, and the fact that the same motor is sold under so many brand names means that finding service or parts shouldn't be a problem. Most of the 4hp 4 strokes weigh between 50 and 60 lbs, and I don't think that the extra half horsepower is going to be worth the extra weight.
 
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Tim

Outboard Recommendation

Thanks for the opinion. I used a 2 HP Honda on a Boston Whaler Harpoon 5.2 for several years - it was a great motor and wouldn't quit. Why were you motoring all the way to Catalina? No wind? Just curious.
 
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Dave K

Lack of wind on the way over......

.....But plenty on the way back. It wasn't completely windless on the trip over but because it's such a long way it's important to keep your speed up. At two knots (about all I could make under sail alone) it would have taken fifteen hours to get there. If you'd like to see a slide show from that trip check out: http://www.howies.net/socalpotter/catalina2006/ The SoCal potter group is a lot of fun and they put up with me and the O'day since I also own a Potter 15 which, by the way, is the original use of my Honda 2.
 
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Tim

Some Thoughts

Your trip to Catalina was very interesting. Some very good pictures. About the outboard: The old Johnson I've been using may have deteriorated to a point where I'm not actually getting rated power but sometimes it is underpowered depending on wind and currects. The Nissan/Tohatsu 5 HP actually weight slightly less (about 2 lbs. less) than the 4 HP because the 4 used an internal tank (as well as external connections). My reasoning was - youget the weight either way, why not get the extra HP also. I will also now look into the 3.5 HP at your suggestion. Tim
 
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