[Rhodes22-list] Carb problems with NISSAN outboards?
Peter Thorn
pthorn at nc.rr.com
Mon Nov 21 14:35:22 EST 2005
For the record, no problems at all with the '05 Tohatsu 9.8 four stroke.
Very nice, smooth, quiet motor. The guy at Online Outboards is very
helpful and a nice guy. Thank you Brad for the heads-up on ethanol. I
routinely use Stabil gas stabilizer, but not sure if we have ethanol in NC.
I'll watch out for it. Why would a Tohatsu/Nissan react to ethanol any
differently than a Honda, Yamaha or Merc?
----- Original Message -----
From: "Lou Rosenberg" <lsr3 at MAIL.nyu.edu>
To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
Sent: Monday, November 21, 2005 2:18 PM
Subject: Re: [Rhodes22-list] Carb problems with NISSAN outboards?
>
> Brad,
> Much thanks for the info on ethanol and OBs. Why would this only
> affect Nissan's -any idea?
> The post below was mine, in my haste I forgot to sign it.
> fly safe,
> Lou
>
>
> >Peter,
> >
> >Running ethanol in outboards poses three problems: 1
> >- ethanol absorbs water more readily, not good in a
> >marine environment, 2 - ethanol has more detergent
> >qualities which washes more "crud" from your tank into
> >the engine, and 3 - ethanol eats away at hoses not
> >designed for it. Most of the later model 2 and 4
> >strokes are supposed to have hoses and o-rings that
> >handle it but you still have issues 1 and 2 to deal
> >with. That is precisely why the FAA still doesn't
> >allow ethanol blended fuels to be used in aircraft
> >that have the STC for auto-gas.
> >
> >Brad
> >
> >--- Lou Rosenberg <lsr3 at MAIL.nyu.edu> wrote:
> >
> >> Peter, Bill
> >> Sorry to go back to this post but I have found
> >> some word of mouth
> >> info on the Nissan/ Tohatsu motors and want to
> >> confirm it with anyone
> >> on this list's experience.
> >> I heard from a sailor in my marina that the 2004
> >> Nissan outboards DO
> >> NOT RUN WELL AT ALL with ETHANOL added to the
> >> fuel. In NYC we
> >> have ethanol added during the some parts of the
> >> season .
> >> Does any one have any experiences with bad
> >> carbureators on the
> >> NISSAN or Tohasu OB motors?
> >>
> >>
> >>
> >> >Peter,
> >> >
> >> >6.5 Pitch Prop.
> >> >
> >> >I know mechanically what that means, but I never
> >> understand what it
> >> >does. What is the standard prop for motorboats?
> >> Why?
> >> >
> >> >I want a prop that will allow me to go slow. There
> >> is a lot of wind
> >> >and current where I dock. I want a prop that will
> >> allow me to
> >> >slowly approach the dock, whether or not there is
> >> wind and current,
> >> >without disengaging the prop, without stalling out,
> >> and without
> >> >forcing me to coast in for the last 5 to 100 feet
> >> depending on wind
> >> >and current conditions.
> >> >
> >> >I don't care if I have to rev higher to get the
> >> boat to hull speed.
> >> >
> >> >What prop do I want?
> >> >
> >> >Bill Effros
> >> >
> >> >Peter Thorn wrote:
> >> >
> >> >>Hi Lou,
> >> >>
> >> >>Congratulations on completing that ugly task. May
> >> everything be downhill
> >> >>for you from here on. I bought Tohatsu 9.8 for
> >> Raven, but I really wanted
> >> >>an 8hp. At the time the distributor was all out
> >> of 8s, so I settled because
> >> >>I needed it then. The motor weighs 82 pounds same
> >> as the 8, the lightest 4
> >> >>stroke on the market. Added a 6.5 pitch prop,
> >> (for sailboats) and
> >> >>everything works quite well. 95% of the time,
> >> Raven motors at 1/16 throttle
> >> >>and 4-4.5 knots. It's the best compromise for
> >> most quiet, least vibration
> >> >>and best speed through water there. Less than 1/2
> >> gal per hour fuel
> >> >>consumption there too. Any time I would like, I
> >> can twist up to 1/4
> >> >>throttle and hull speed. Beyond that, just bigger
> >> and bigger waves. That
> >> >>9.8 can really make some big ones!
> >> >>
> >> >>Just returned from Oriental to Ocracoke --
> >> fantastic trip! Waiting to
> >> >>exchange pictures with my fellow adventurers and
> >> write up my log notes, then
> >> >>will post to the list. Not sure I can do better
> >> than Chris G though. A
> >> >>real South Western Odysseus!
> >> >>
> >> >>PT
> >> >>
> >> >>
> >> >>
> >> >>----- Original Message ----- From: "Lou Rosenberg"
> >> <lsr3 at MAIL.nyu.edu>
> >> >>To: "Richard Smith" <sailnut at worldnet.att.net>;
> >> "The Rhodes 22 mail list"
> >> >><rhodes22-list at rhodes22.org>
> >> >>Sent: Tuesday, October 25, 2005 4:16 PM
> >> >>Subject: Re: [Rhodes22-list] Lou's CB trunk almost
> >> done
> >> >>
> >> >>
> >> >>
> >> >>> Thanks Richard,
> >> >>> Ok I will look into Eldridge, and I do plan to
> >> time my passage.
> >> >>> So you are saying that an 8hp is plenty for the
> >> Rhodes in most
> >> >>>
> >> >>>
> >> >>situations?
> >> >>
> >> >>> Lou
> >> >>>
> >> >>>
> >> >>>
> >> >>>>< will a 8hp Tohatsu get me around Hells Gate
> >> where the Triboro
> >> >>>>
> >> >>>>
> >> >>>>>Bridge meets the East River, with the tide
> >> coming in and the current
> >> >>>>>going south?>
> >> >>>>>
> > > >>>>>
> >> >>>>Five horsepower is plenty. The speed of the
> >> current in this area can
> >> >>>>
> >> >>>>
> >> >>exceed
> >> >>
> >> >>>>the hull speed of the boat. No reasonable
> >> amount of power will overcome
> >> >>>>that limitation. Get a copy of Eldridge and
> >> time your passages to take
> >> >>>>advantage of the current not fight it.
> >> >>>>
> >> >>>>The heavy engine on the stern will worsen the
> >> hobby horsing tendency and
> >> >>>>associated cavitation in rough conditions.
> >> Exactly when you don't need .
> >> >>>>
> >> >>>>Richard Smith
> >> >>>>
> >>
> >>>>>__________________________________________________
> >> >>>>Use Rhodes22-list at rhodes22.org, Help?
> >> www.rhodes22.org/list
> >> >>>>
> >> >>>>
> >>
> >>>>__________________________________________________
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> >> >>>
> >> >>>
> >> >>
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> >
> >
> >
> >
> >
> >__________________________________
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