<VV>Fan hub bearing

[airvair]

Despite what some might tell you, they can go bad within 150 miles or
less. Been there, had it happen. And while mine went from not a peep to
"merely" screaming like a banshee in that short a time, I've known them
to fail so utterly as to destroy the fan after the bearing flew apart.
All I can say is that if it's starting to squeek, then replace it
pronto.

And when you replace it, the best thing you can do is get a cartridge
bearing like American Pi builds for Clark's. They're a little pricy, but
you'll never have to tear the top half of the engine off again just to
replace the stupid bearing. I have a similar "quick-change" bearing, and
it's possible to change it with nothing more than a Philips screwdriver
and a 1/4" drive socket set, and in about 15-20 minutes! No fancy
pullers, no replacing of top cover gaskets, no all-day teardown and
repair, etc. All that grief is obsolete with a cartridge bearing.

-Mark

Padgett wrote:
> 
> Am told (I can't feel it) that my fan hub bearing is getting rough. Is this
> the sort of thing that suddenly scatters parts or tends to "fail soft",
> making increasing amounts of noise.
> 
> Need to decide whether to replace before or after an 80 mile excusion.
> 
> Padgett
>