[GreenKeys] NOS bearings

John, W9DDD w9ddd at tapr.org
Fri Aug 23 14:47:09 EDT 2019


I have this NOS intermediate assembly that likely has been in storage 
since before 1980.

I can see grease in the bearings, and it doesn't look hard or old.  But 
I don't want to start running it hard and then have a problem.  (hard 
being a few hours a day?)

Bank in the last century the motor bench guy used to flush the bearings 
with a solvent (kerosene?) and then repack them with fresh grease.  But 
this would have been after many hours of use or maybe even years for 
25-250 HP motors.

Should i go to that extreme?  Or maybe a drop or two of oil to loosen 
things up?

-- 
John, W9DDD
Ich habe dreimal abgeschnitten uns jetzt zu kurtz. (I cut it off 3 times 
and it's still too short.)


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