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I purchased a couple of the in-line tempeture probe kits for the ZF 63 gear. On the gear it is stamped IN and OUT. I installed the probe on the OUT line to the gear cooler but now looking at it, I think was the wrong side. It looks like the ZF Manual has the flow opposite to what I would think as in and out mean. Unless the markings on the gear are in reference FROM the cooler. I have seen the temp and pressure location pictures but canāt find anything else on flow direction.
Thanks,
Sean.
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As long as you gear tems stailizes below 150F +/- 10 F, no need to worrys about it…..IMO most gears in marine applicxations are over cooled anyway as the oil rarely reaches over 130-140F for any length of time and does not get rid of the moisture that gets in it………… One might say, “hotter” in better than “cooler”.. The automatic transmission in your car runs in the 160-220F range all the time..
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Vessel Name: Tenacious
Engines: 6BTA 5.9 330's - "Seaboard Style"
Location: Long Island, NY
Country: USA
Yes the second attachment arrows do not follow the in and out direction.
Oil cooler are bi-direction by design. Yes, counter-flow is recommended, not parallel flow, as show in this below link. With the small size of these gear marine gear coolers I cannot see it making much of a difference at all.
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