Oil in shocks--grease in axle arms
Hi Malcolm, yes, I think you are right: conversion to grease was the road wheels axle arms, not the shock absorbers: sorry to mislead you.
The 1973 Aust EMEI Data sheet for Centurion lists shock absorbers, each reservoir, as 4 gallons of 0-134 (OM-13) oil (sounds too much? Maybe 4 gallons covers all the shocks and that is a typo?) and axle arms as XG-274 grease.
OM-13 is listed as 'lubricating oil, general purpose, petroleum, light' with a viscosity of 13 @ 38 degrees C.
XG-274: I don't have a spec for, but XG-276 is a moly grease with extreme pressure additives, and XG-279 is a general purpose automotive and artillery grease. XG-279 sounds closer to the mark.
I also looked at the maintenance book, and the shocks, when serviced off the vehicle, are filled using a special jig that works the shock back and forth to pull the oil into it. They are then topped off and the plug inserted before assembling back into the suspension unit.
Regards
Mike
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