Re: Wizard WA-25 Lower unit gear lube

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May 10, 2017 at 10:00 am #57415
billw
Participant

    US Member

    Old Mercury lower units essentially DON’T have any seals in them because the rusty shafts have eaten them all up. I do a complete reseal of all of mine, including a Speedi-Sleeve on the drive shaft, then pressure test to 10 psi. THEN and ONLY then, I use 90 weight oil. But Cornhead is as good an alternative as can be hoped for, given the circumstance.

    Long live American manufacturing!