[Public-List] A4 question

Mon Jan 6 06:00:50 PST 2014

I second both the fuel as the most likely candidate and the ethanol
issue.
I struggled with rough performance similar to what Bill described all
summer until I started dumping Sea Foam into the tank regularly.
I also suspected the pick-up, but mine is very difficult to evaluate. 
Given the improvement with gas treatment I suspect ethanol causing
occasional carburetor blockage. I watched George Dinwiddie take his carb
apart and it appeared to be full of gummy worms.

Mike #272

-----Original Message-----
From: public-list-bounces at lists.alberg30.org
[mailto:public-list-bounces at lists.alberg30.org] On Behalf Of John's
Email
Sent: Monday, January 06, 2014 8:44 AM
To: Alberg 30 Public List -- open to all
Subject: Re: [Public-List] A4 question

Bill,

Follow up on the ethanol possibility. I do not have a Moyer and so am
not familiar with the carb/injector design. However, on another boat of
mine the ethanol dissolved a couple of gaskets and clogged the
high-speed carb jet. Boat ran fine at idle but lost power at speed. Carb
had to be re-built.

John

Sent from my iPhone

On Jan 6, 2014, at 6:43, Bill Ydel <wcydel at gmail.com> wrote:

> Thanks, I will go down to the marina again today and let her run for a
longer period. The engine is less the 2 years old from Moyer and has
about about 40 hrs of use. Gas tank is new, all new fuel lines and new
Racor filter.
> 
> Bill
> 
> Sent from my iPad
> 
> On Jan 6, 2014, at 12:37 AM, Glenn Brooks <brooks.glenn at comcast.net>
wrote:
> 
>> Bill,  what engine do you have? 
>> 
>> Any number of possibilities...  Could have been a bit of dirty fuel,
or a shot of water that froze in  the fuel system and reduced flow to
the engine, or if an older gas engine, something to do with the
ignition.  Also a common and vexing problem in old  boats is they
eventually can develop a pin hole in the pickup tube in the fuel tank
through galvanic corrosion , sometimes even the tube breaks completely
off.  In that case the pickup tube can't draw adequate fuel into the
injectors or carb and so the engine runs slowly or quits. But will start
up again when fuel sloughs around the tube.   Usually it's easy to check
the pickup tube, if you have an inspection plate on top of the tank.
Something dragging on the prop also is a possibility.  
>> 
>> Easiest thing is to run the engine some more, under different loads
and see if the problem reoccurs.  If not, probably just bad fuel and
your good to go...
>> 
>> Glenn Brooks
>> dolce 318
>> 
>> Sent from my iPad
>> 
>>> On Jan 5, 2014, at 7:28 PM, a silva <picomar1957 at hotmail.com> wrote:
>>> 
>>> im not a xpert but maybe something got into your prop check oil in 
>>> transmision try turning motor in gear with hand crank and listen or 
>>> feel for anything unusual
>>> 
>>> -----Original Message----- From: Bill Ydel
>>> Sent: Sunday, January 05, 2014 10:58 AM
>>> To: Alberg 30 Public List -- open to all
>>> Subject: [Public-List] A4 question
>>> 
>>> I was running the engine yesterday to bring it up to operating
temperature. It started just fine and ran smoothly but after a few
minutes the rpm's dropped to about 600. I had been running in gear at
the dock at about 1200 RPM's, I took it out of gear and gave it some
more throttle to get it back to 1200. After a few moments the RPM's
increased.
>>> The engine was still running smoothly.
>>> Anyone have any thoughts about the cause for the change in RPM's. I
would expect that it could be a number of things, but let's start with
the simple. I am NOT a mechanic.
>>> 
>>> Bill
>>> SallyB #441
>>> Charleston, SC
>>> 
>>> Sent from my iPad
>>> 
>>> 
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