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JIMinFL
 
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Default Very troubelsome Mercruiser Water Leak!!!

If the hose fell off the coupler running thru the inner transom plate you
could certainly spray the bell housing area AND there would be no water
supply to the engine. The outdrive impeller typically interferes with water
flow when the engine is not running, so check that the impeller has not
taken a set or has broken vanes.
Jim

"Bolisk" wrote in message
ups.com...
I wish I knew where the water was comming from. I was never able to
get my big ars deep enough into the bilge and behind the engine to see.
Didn't have a mirror either. Boat is now out of my hands, so getitng
video is out of the question.

I don't believe it's a problem with the exaust or exhaust tube. .
.although it could be. Reason I say no is because the engine was
running for probably a total of 10-15 seconds before I noticed and then
shut the engine off. Even after that 10-15 seconds. . .the exaust
manafolds were warm. When water is running though it. . .they take a
lot longer (like minutes) to be warm. So I think it's a problem with
the water on the way in from the outdrive. Another reason is.. .even
with the engine off. . .there was water leaking off the back of the
engine. . .this appears to be from the watter pressure from the hose
connected to the outdrive. Disconnecting the hose. . .supprise
suppirse. . .stopped the leak. I can't imaging the hose having
enough water pressure to push the water completly though the block and
exahust manifolds without the water pump in the outdrive running.

If it was a cracked block. ..wouldn't water in the oil be a near
certainty???? I'm fairly mechaniacaly inclined. . .I just helped by
friend rebuild his 1965 396 Big Block for his Vett. . .so I know a
little something. There wasn't any water in the oil.

All I really know is that a lot of watter was "flooding" (for lack of a
better term) off the bottom back of the engine. I don't think any
water was actually getting into the engine. Reason I say this is
because I removed one of the drain plugs. . .and antifreeze came out.
Also the exahust ports on the transom and though the prop were bone
dry.

With regards to anti-freeze and draining. The shop manual I have tells
you that at the minimum you should run anti-freeze though the engine,
but only after the engine is at operating temp. They recommend pulling
the drain pluggs for added assurance. . .but I've never seen the need
as I and many others have done the anti-freeze option for years without
problems. However. . .you can be damn sure that I will change my ways
next season.

I guess I'm wonering if there is a hose connecting the water intake
from the outdrive to the engine block. . .I would think there would
have to be! Possible that it fell off. . .is it easy for a thin person
to access and fix. . .does the engine have to be removed? Or is the
water intake connection a solid pipe from the transom to the engine?



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