I am in the process of replacing my old 8.5 evanrude outboard...two questions have come up: I will get a long shaft..is a 20" shaft ok or would a longer one be necessary?? how much will my motormount (original garelick) handle? Moving from a 2 cycle to a 4 cycle will increase the weight to 80 or 90 pounds. thanks!!
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Same as me
I repowered my '79 Oday 23 a few years ago. I went with an 8 hp two stroke Nissan, electric start long shaft model. Great engine. You need a long shaft model. The 20" length is the "standard" long shaft. One or two manufacturers offer a 25" model. If the engine you like is available as a 25", definitely go for it. You won't regret it. I tried to find one a few years ago, and I don't think they were available except as a special order. Moving from a two stroke to a four stroke engine is a great upgrade: less noise, better fuel economy, less pollution. However, note that a four stroke generates a lot more torque than an equivalent hp two stroke, so the mounting bracket must specifically be rated to handle a four stroke. It's not just the weight differential between two and four that is important in determining if your existing bracket can handle things. For me, I decided to go with the two stroke. It was significantly lighter than the four stroke, making it easier for the Admiral to raise and lower, it was a lot less expensive, and it didn't require modifying my existing mounting bracket or the transom block. I console my environmental self with the knowledge that while it is not as clean as a four stroke, it is much cleaner than the 1981 model it replaced.
I repowered my '79 Oday 23 a few years ago. I went with an 8 hp two stroke Nissan, electric start long shaft model. Great engine. You need a long shaft model. The 20" length is the "standard" long shaft. One or two manufacturers offer a 25" model. If the engine you like is available as a 25", definitely go for it. You won't regret it. I tried to find one a few years ago, and I don't think they were available except as a special order. Moving from a two stroke to a four stroke engine is a great upgrade: less noise, better fuel economy, less pollution. However, note that a four stroke generates a lot more torque than an equivalent hp two stroke, so the mounting bracket must specifically be rated to handle a four stroke. It's not just the weight differential between two and four that is important in determining if your existing bracket can handle things. For me, I decided to go with the two stroke. It was significantly lighter than the four stroke, making it easier for the Admiral to raise and lower, it was a lot less expensive, and it didn't require modifying my existing mounting bracket or the transom block. I console my environmental self with the knowledge that while it is not as clean as a four stroke, it is much cleaner than the 1981 model it replaced.
Power
I agree with Mike. The 8 two stroke is my choice. I'm not too concerned with the environmental impac. I used 6 gallons of fuel last season with 31 days sailing.
I agree with Mike. The 8 two stroke is my choice. I'm not too concerned with the environmental impac. I used 6 gallons of fuel last season with 31 days sailing.
outboard for 1982 oday
bob/mike thanks for your responses. I'm having trouble finding a 2 stroke....any ideas on who would have one?
bob/mike thanks for your responses. I'm having trouble finding a 2 stroke....any ideas on who would have one?
How odd....
I did a quick web search, and I too had trouble finding a two stroke. I find it very odd that only three years after I bought my two stroke that they seem to have disappeared from the usual suspects' (West Marine, Defender) catalogs. You can always find one used, but unless you know your way around an engine, I wouldn't risk buying a used outboard. You may have to go with a four stroke. Based on what I saw (especially on Defender's website), the variety has increased, and prices and weights of the outboards have come down. Mercury seems to be offering 25" shafts in most of their small units. Still, they are pricey. Try the manufacturer's websites and ask a local dealer who still makes two strokes in long shaft models. Good luck.
I did a quick web search, and I too had trouble finding a two stroke. I find it very odd that only three years after I bought my two stroke that they seem to have disappeared from the usual suspects' (West Marine, Defender) catalogs. You can always find one used, but unless you know your way around an engine, I wouldn't risk buying a used outboard. You may have to go with a four stroke. Based on what I saw (especially on Defender's website), the variety has increased, and prices and weights of the outboards have come down. Mercury seems to be offering 25" shafts in most of their small units. Still, they are pricey. Try the manufacturer's websites and ask a local dealer who still makes two strokes in long shaft models. Good luck.
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