Problem with 9.9 Evinrude sailboat outboard

Problem with 9.9 Evinrude sailboat outboard

Post by Eswsim » Sat, 29 Aug 1998 04:00:00


My 13 yr old Evinrude refuses to put out a water pump indicator stream. I had
my mechanic check it out when he did the spring tune up and the stream was fine
at first but as soon as the motor was running under a load the stream quit.
I've tried fishing around with a wire, blowing air in the indicator stream
outlet and squirting all likely outlets with a hose. The motor starts quickly
and runs ok--just no indicator stream. Any thoughts or suggestions greatly
appreciated.  Peter
 
 
 

Problem with 9.9 Evinrude sailboat outboard

Post by SIJack » Sat, 29 Aug 1998 04:00:00

The water pump indicator stream, as you know, indicates the health of the
impeller in the water pump.  If no water is coming out, chances are that the
indicator tube is either clogged (as you suspected), or the impeller and/or
water pump housing needs replacement.

Try this:  start the engine.  run in neutral and then shift to reverse.  run at
slow speed.  see if any water comes out the indicator.  try this procedure 2 or
3 times, but not at high speed nor if the engine seems to be overheating.  
Most small Evinrudes also have an exhaust pressure relief outlet directly under
the the powerhead and under the cowl latch.  Hold your hand over it to see if
any exhaust and/or water is coming out while the engine is running.

If all this fails, it may be time to take your motor to a different mechanic
for a replacement impeller or water pump.  Or, you can order a kit (from
Defender or a local dealer) and do it yourself.  It is not a hard job.  Either
way, you need to find the cause of the problem and repair it prior to depending
on this motor to get you home when you need it.

 
 
 

Problem with 9.9 Evinrude sailboat outboard

Post by Dave Brow » Sun, 30 Aug 1998 04:00:00

Quote:

> My 13 yr old Evinrude refuses to put out a water pump indicator stream. I had
> my mechanic check it out when he did the spring tune up and the stream was fine
> at first but as soon as the motor was running under a load the stream quit.
> I've tried fishing around with a wire, blowing air in the indicator stream
> outlet and squirting all likely outlets with a hose. The motor starts quickly
> and runs ok--just no indicator stream. Any thoughts or suggestions greatly
> appreciated.  Peter

Simple flow charte for this one:

Water coming out indicator?  Yes? No problem.
No? Is steam coming out hole? No - Blocked hose. Yes - Water pump not working.

Diagnosis complete. :-)

--
Regards,

          Dave Brown
          Brown's Marina
          http://www.brownsmarina.on.ca/

 
 
 

Problem with 9.9 Evinrude sailboat outboard

Post by Carl G. Crave » Mon, 31 Aug 1998 04:00:00

Depending on what year motor we're talking about, and what area of the
country,
you may have bad water tube grommets.

From what I understand, this is a problem that is unique to the Northwest
area of the
US. Our crude oil from Alaska has a high sulfer content so the refiners use
a "perfume"
to combat the smell. That perfume attacts the  *** motor mounts and water
tube grommet causing the grommet to swell & block the water tube.

Grab the motor hood & tiller handle and pull in opposite directions & push
too ( side to side, in the direction you would steer the motor).
If you can make metal to metal contact, your motor mounts are shot and most
likely your water tube grommet is too.

Of course, the usual things should be checked first. Make sure the water
pump is ok, and
while you are in there, try to blow air through the water tube (use a hose
and blow
air into it with your mouth), if you can't blow any air, the grommet is bad.

Carl G. Craver


Quote:
>My 13 yr old Evinrude refuses to put out a water pump indicator stream. I
had
>my mechanic check it out when he did the spring tune up and the stream was
fine
>at first but as soon as the motor was running under a load the stream quit.
>I've tried fishing around with a wire, blowing air in the indicator stream
>outlet and squirting all likely outlets with a hose. The motor starts
quickly
>and runs ok--just no indicator stream. Any thoughts or suggestions greatly
>appreciated.  Peter