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    1994 Mercruiser 4.3L V6 Raw Water Overcooling

    Re: 1994 Mercruiser 4.3L V6 Raw Water Overcooling Got it. Labels have been updated accordingly (see attached). Any other ideas?
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    1994 Mercruiser 4.3L V6 Raw Water Overcooling

    Re: 1994 Mercruiser 4.3L V6 Raw Water Overcooling Also, here is a picture of the hose routing with labels for hose function and hot/cold water flow direction (see attached).
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    1994 Mercruiser 4.3L V6 Raw Water Overcooling

    Re: 1994 Mercruiser 4.3L V6 Raw Water Overcooling One other observation -I noticed that the new sensor is much shorter than the original sensor. However, I purchased the part from West Marine, and it was the exact temp sensor replacement for a 1994 4.3L Mercruiser.
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    1994 Mercruiser 4.3L V6 Raw Water Overcooling

    Hello All -this is my first time on the forum. I have a 1994 Mercruiser 4.3L V6 raw-water cooled engine that I recently acquired and it is overcooling. I ran the engine for nearly 30 mins at over 3500rpm in the lake. The needle on the gauge was pegged all the way to the cold end and did not move...
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