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Old 02-09-2023, 01:20 PM   #11
pistonbroke
Senior Member
 
Join Date: Feb 2021
Location: Perry Mo.
Posts: 486
Default Re: Lubricating fan?

I think if you dismantle the hub you will find it is a simple screw type circulating pump so grease or to thick of oil would not be good. I don't remember now where I read it ( possibly the owners manual) but if my memory serves me right SAE 30 was recommended. I don't recall the amount but on the two 51 F1's I have been involved with there has been no leakage or slinging of oil from the fan hub. Tim
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