I had wondered about this in the past, and I did some Internet searching
to try to figure out what a "zinc base" grease is. I discovered that zinc oxide
is a common filler material for "white" grease, but I could not find
anything that described what characteristics zinc oxide gave to a grease,
except for making it white.
My theory is this: Avoid moly-based greases, because the particles
of moly might be abrasive to soft plastic. Same for graphite.
So I used classic old-fashioned wheel bearing grease (the
amber-colored kind) the last time I did a trunnion.
Doug Braun
'72 Spit
At 09:16 AM 3/8/01 , Gary Hutton wrote:
>I am replacing the front trunnions on my 76 and the instructions in both
>my Bentley and BL Repair Operations manuals specify lubricating the two
>nylon bearings with a "zinc base grease". I have several grades of
>lithium based grease, but have not been able to find any zinc base
>grease at any of my local supply shops - can I get away with using the
>lithium grease or is it going to somehow cause deterioration of the
>nylon - and if so - what kind of grease does everybody use on those
>things?
>
>Hoping to put it all back together today and drive - I'm south of Howard
>so it's warmer!
>
>Gary Hutton
>Newburgh, IN
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