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Cooling water contamination

 
 
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Old 06-01-2009, 07:05 AM   #1
jflongwell
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Cooling water contamination

I just noticed there is something other than just water coming out of my starboard engine cooling water. It looks like oil, but I am going by appearance only.

I have T/454's with closed loop cooling. Engines under 400 hours

Any advice as to a plan of action? Could this be a leak from the oil cooler?

John
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Old 06-01-2009, 07:37 AM   #2
K1W1
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Quote:
Originally Posted by jflongwell
I just noticed there is something other than just water coming out of my starboard engine cooling water. It looks like oil, but I am going by appearance only.

I have T/454's with closed loop cooling. Engines under 400 hours

Any advice as to a plan of action? Could this be a leak from the oil cooler?

John

Hi,

Is this water that comes out over the side?

Does it feed the Oil Cooler, trans oil cooler?
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Old 06-01-2009, 07:55 AM   #3
jflongwell
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Cooling water

The cooling water circulates through two small (2" diameter) tube bundle type coolers on either side of the engine. I believe they are for the engine/transmission oil.

There is also a larger heat exchange for the water/glycol engine coolant.

The water also cools the dripless seals.

It is drawn out of the lake from under the hull and exits out the exaust tube.

I have only has the boat since last summer and just noticed this yesterday while warming up the engines.

John
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Old 06-01-2009, 08:06 AM   #4
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Hi,

From what you have written I would say there is a better than even chance that one of your coolers is leaking.

Does either of the engines or trannies use oil? (In the engines case-more than when you first got it)

A little oil can show up a lot in clean water.
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