1999 merc 125hp T-stat and popet valve shooting water out back of head?

v12mac

Chief Petty Officer
Joined
Oct 30, 2003
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502
While running a buddies engine (1999 125hp 2 stroke merc) I noticed water shooting out of the back of the cyl head. I am not a merc mechanic but I figured that can't be right. We pulled off what appeared to be a t-stat housing that bypassed water to a poppet valve. T-stat VERY corroded and the rubber around the valve was torn a bit.

The plan is to clean up the corrosion, and replace the parts ect. Any gotcha's with this repair?

Mac
 
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