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post #1 of Old 06-04-2018 Thread Starter
Ocean Cruising
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Transmission Oil Cooler set up? Questions

Hello,
I'm trying to attach an oil cooler to a ZF30M transmission.

Sounds like a simple task, but I don't know how the cooler should attach to the transmission. I just got the transmission and the manual says it must have an oil cooler to prevent overheating of the transmission fluid. The problem is that I can't find any information about how the oil cooler connects to the transmission. Where does the oil come out at? How does it get back in? Do I need an external electric fluid pump? I'm in salt water - what oil cooler do I need? Is copper ok, or do I need to have a copper-nickel cooler? The only way of getting oil in or out of the transmission is the drain plug and the fill plug. Is that what I'm supposed to use? Don't tell me I have to drill and tap holes on the side of my transmission. I won't do it. I'll just change the oil each of the dozen or so times I go sailing each year.

I find it very frustrating that I bought a brand new transmission from a marine supplier, but can't find information about proper installation other than the bolt sizes. I'm about to fly over to Germany and drive up to the ZF factory, and fight some Germans engineers. WWIII. And the crazy thing is that I drive a Volkswagen.

Just kidding about fighting Germans, but if you have any information about how this should be done, please reply. Anything is better than nothing. I did find an oil cooler that is coppe-nickle, and will fit my water lines, but I don't know how to attach it.

Thanks a bunch!
Mike
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