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  engine help please

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Author Topic:   engine help please
davidmassi posted 06-19-2003 05:19 PM ET (US)   Profile for davidmassi  
I just inhereted a 1963 Nauset. It has the original 75 HP Johnson that needs to be replaced. I am told it will need a short shaft engine. Is this true, and if so, what size? Any recommendations? How much HP is the boat rated for? I was also told that a Whaler had a rounded transom that needs shims to put an engine on. Again, is this true, and what would one use, pieces of aluminum? Thanks for your help guys. I'm hoping I'm not in over my head with this project, but it's a nice original boat that I would like to keep.
Bigshot posted 06-19-2003 07:30 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Boat is rated for 40-100hp(1961 standards which means a 100hp in 61 is probably equiv to a modern 70hp). The engine shaft size is 20" which is the norm on mid-sized engines. No on the 16' you do not need shims, the 13' really have the rounded transoms. Do not junk that engine, especially if she runs, will bring a good buck on E-Bay being hard to find parts. I personally on that hull would buy the Mercury 60hp or Suzuki/Johnson 70hp 4 stroke and you will love it. If money is tighter then I recommend a used 3cyl OMC 70 hp or 88/90 if speed is necessary. The 88/90 will burn some serious fuel compared to a 70 but be about 4-5mph faster on top end. The 4 strokes are quiet, and burn half the gas but weigh and cost more. that is why I say 60-70hp. The 75-100hp are HEAVY and $$$$$.
davidmassi posted 06-21-2003 10:13 AM ET (US)     Profile for davidmassi    
Thanks Bigshot for the help. Before hearing your answers, I was questioning keeping the boat. I think now, that it is worth getting back in the water.

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