Notch in Alternator fan, whats its use?
 

I was putting in a new belt and noticed a notch on the fan belt (see pic below) on my 82 911sc, didnt see the purpose it served because there is nothing in sits on on slids over onto when on the alternator, it just freely spins. Is my car missing something? My fan freely spins on the alternator rod, just maybe thought that notch is suppose to slid onto something to help it catch onto the alternator rod. Thanks

http://forums.pelicanparts.com/uploa...1360784325.jpg

Woodruff Key

+1

Now that makes sense...just searched woodruff key. Why the heck doesn't my alternator rod even have a space for that key??? Thanks for your help

Wrong fan, thats for pre 76 application with the big holes.
Bruce

Wrong fan or wrong alternator? The '82 should have a keyed fan hub and a keyed alternator shaft

Dont all proper fans and alternators have keys?

lately, some rebuilt bosch alternators don't have a keyway cut in the shaft. this pisses me off. i called bosch tech and the guy said that bosch determined that they weren't needed. so far i've only seen two and i sent them back and got ones with a keyway. so stupid. new valeos only for me now.

Thats why I don't use Bosch remans,JUNK!! New Valeos for me too. Its not the same old Robert Bosch Co. it used to be. And yes, it should be keyed.

Howard

Or you can get a lifetime refurb, like I did for $76, locally :D Woodruff still there :D

Anybody know where the woodruff key can be had from?

Ignore that - I see our host sells them $2.25! Yahoo!

Any good hardware store

Ernie

when i pulled mine off (john walker method with 4x4 block) there was no key in there. worked for a bunch of years without spinning under load. but hey for 3 bucks, put it in