[Rhodes22-list] Carb problems with NISSAN outboards?

[brad haslett]

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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> www.rhodes22.org/list
> >>>   
> >>>
> >>
> >>__________________________________________________
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> >>
> >>
> >__________________________________________________
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> 
> __________________________________________________
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