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Hooking up flush muffs...no water coming out of discharge (outboard)
On 12 Oct 2003 12:10:19 -0700, (GeorgeR) wrote:
Trying to winterize a 1991 Mercury outboard. I hooked up a pair of
universal flush ear muffs to the engine water intake and turned on the
hose. Water was spitting out of a couple places in the lower unit
before I started the engine. When I started the engine water still
flowed out of the lower unit but no water came out of the water
discharge hole which is mounted on the rear of the engine itself about
half way up. I turned off the engine and tried blowing through the
water outlet and was able to blow through it easy so I repositioned
the flush muffs and tried again, to no avail, water was flowing freely
out of the prop though. I never let it run for more then 10 seconds
and the engine remained cold to the touch. When I turned off the water
I was able to hear water trickling down out of the upper drive unit. I
searched the net but couldn't find any info. Shouldn't water come out
of this hole the same is if it were in a lake? If so what should I
look for? Please help.
George
George- some O/B's have a thermostat to help the engine warm quickly
to operating temperature. I don't know if your engine has a t-stat
but, if so, 10 seconds is not enough time to warm the engine, and
allow water flow through the discharge.
Make sure your muffs are fitting right, and let it run a bit longer.
Pay attention to engine temp (gauge or touch). As the engine warms,
I'm fairly sure you'll feel a warm water discharge from the engine.
Three minutes should be enough to warm it at idle. Within that time,
if you smell anything "hot", or the block feels hot, shut it down to
be safe. You may have a cooling problem, but I don't think so. The
behavior you describe is similar to what my Evinrude, Johnson, and
Merc do on the engine stand, with muffs.
Good luck,
....carry on.
noah
To email me, please remove the "FISH" from the net.
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