I recently replaced my dead alternator with a new one, I did not notice until after I put it on (while I was taking a woodruff key off my cam) that it didn't have a woodruff key on it. The fan and pully have a slot on them and I'm pretty sure the alternator has a slot on it aswell. My question is where can I find this woodruff key?

thanks for your help
Austin

 

It’s in PET so you should be able to buy one from Porsche, or failing that your local hardware store or even McMaster.

 

@MAGK944 is correct, you can buy a new one but, in my limited experience, none of the alternators on my transaxle Porsches have the Woodruff key on the alternator. I freaked out about it when I rebuilt the alternator for my 928 S4 and got talked off the ledge about it. My experience is with the 4V/cyl cars, however, so take this all with a grain of salt.

Good luck

 

I looked at PET and couldn't find it. Maybe I'm blind?

 

yeah, I thought it was weird, but I don't know what long term effects it is going to have with out it. The fan might be spinning free ECT.

 

You torque that thing down pretty good with an impact wrench and I don't think you'll have anything to worry about. It IS a little freaky, though, when you see that there's nothing there.

I'm pretty sure I ended up buying some keys that would fit the alternator, so I can send you one if you want, but I didn't end up using it.

Cheers

 

It’s showing as: 4x5 Woodruff Key 999.118.008.00 which I presume is a standard 4x5mm key, though I cannot ever remember seeing one on my 1986 when I swapped the alternator and I’ve owned it from new.

 

I must be blind as well, as I searched PET for both early, late and 968 and didn't see any reference to woodruff key for the alternator, either by name or by MAGK's part number reference.

 

My bad, I had it noted down so I didn’t search for it again in PET. You are both correct, it’s not listed in any 944 PET, it’s in the 1980’s 911 PET.