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  max outboard weight for 15" transom on a 13ft

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Author Topic:   max outboard weight for 15" transom on a 13ft
BOB KEMMLER JR posted 04-22-2004 09:02 AM ET (US)   Profile for BOB KEMMLER JR  
Looking at repowering my fathers 1969 13 sport.Nissan with pt&t comes in at 158lbs.The only other 40 hp(in a 15" shaft)i can find is the merc classic at 204lbs(i think this is also without the pt&t,so add 20more lbs????).I would guess the merc would be the powerhouse of the two,but probably be a bit more fuel thirsty.It has a 60's 40hp 2cyl evinrude on it now(140lbs?).Can his 13 handle 220lbs on the back?I'm going to get one of those lo-profile 12 gallon tanks to try and move some of the weight forward.I'd like to go with the merc if possible,it's a $1000 cheaper and having the extra grunt is always nice.I have looked at past threads and never seem to find the max engine weight rating for one of these older 13's.I also don't want to convert it to a 20" shaft.
15ftlover posted 04-22-2004 09:15 AM ET (US)     Profile for 15ftlover  Send Email to 15ftlover     
I had a 1991 four cylinder 40hp mercury 2stroke on my 15ft and it was only listed as 183lbs with power trim/tilt oil injection. I repowered to a four stroke but I still have the old motor and am looking to get rid of it if your interested.
BOB KEMMLER JR posted 04-22-2004 09:25 AM ET (US)     Profile for BOB KEMMLER JR    
I think thats a 20" shaft.
BOB KEMMLER JR posted 04-23-2004 10:01 PM ET (US)     Profile for BOB KEMMLER JR    
decided on the nissan.suprised non of the arm chair experts didn't offer thier opinions on this one.
soggy bottom boy posted 04-23-2004 10:14 PM ET (US)     Profile for soggy bottom boy  Send Email to soggy bottom boy     


The 40 Nissan you decided on, is that a convetional 2 stroke, or the TDLI version? Would be interested in getting your feedback on the model and the performance.


realrez posted 04-25-2004 10:54 PM ET (US)     Profile for realrez  Send Email to realrez     
hey 15' i might be interested if the price is right. i live in Pa.
BOB KEMMLER JR posted 04-26-2004 12:28 AM ET (US)     Profile for BOB KEMMLER JR    
I got the standard carbed version.That tldi is about the same as the 40hp classic merc,HEAVY!!!! I would have liked to have gotten the merc,it was cheaper but about 60+lbs heavier.Plus i heard the merc is a gas hog compared to the nissan.It should be be rigged withing the next month or so.I'll post some numbers after that.
andygere posted 04-28-2004 02:22 PM ET (US)     Profile for andygere  Send Email to andygere     
Bob, I think the 2-stoke Nissan/Tohatsu 40 is a great choice for the pre '73 13s. It's light, available with 15" shaft and power tilt/trim. I looked into putting one of these on our family's '72 13 a while back, but my dad ended up buying a Dauntless 16 so we sold the boat.
BOB KEMMLER JR posted 04-29-2004 10:48 AM ET (US)     Profile for BOB KEMMLER JR    
well i'm really hoping that we made the right choice.I didn't get a stainless prop for it yet,i want to see how it does with the standard aluminum one and go from there.It would be nice if it hit 40 mph,but i'm expecting mid to high 30's.I'm curious to see how the pt&t lets me handle the chop,by letting me bury the bow and slicing the waves on the "vee" portion of the hull more than the cathedral portion of the hull.

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