Join Date: Feb 2010
Location: Narragansett Bay
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Re: Transmission Oil Cooler set up? Questions
I have a ZF25, with cooler. It's simply a box that is attached to the outside of the case. Seawater flows through the box, directly from the sea strainer, then exits as it heads toward the impeller pump. I haven't look inside, but doubt it's much more than an open box. I believe they spec some sort of adhesive that conducts heat better, but think that's silly too.
I seriously wonder how much cooling it does, but they are spec'd for either the gear or displacement of the vessel. We are at the absolute top of the spec displacement for the ZF25, when in recreational use. The gear is undersized for commercial use at our tonnage. Therefore, requiring the cooler.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.