This bastard alternator pulley won't budge. I'll have to pull one out of the stash since this one is hosed now. I even put the oxy-acetelyne on it and got it HOT! No budge. Oh well.

It laughed at my 5 lb sledge. But check out how mushroomed the threaded section is. I beat it silly.

I had a similar party with my alternator. I used a two arm puller and bent the sucker. Much cursing followed. I was able to straighten it out enough after I got it off. Lots of penetrating oil!

Most of the time they come off easy, but I've also run into this...

Almost like it's welded on

Penetrant overnight, attach three-arm puller, add heat to pulley until it's red-hot (oxy-acetylene, MAPP not hot enough), and it WILL pop off.
I battled this little bastard before without a torch and it just seemed to smile back at me. -Mike

Yeah, the next one I will penetrating oil, hook up a three jaw puller, and then heat and tighten the puller. I'lll keep you posted.

I'm glad I have extras or I'd be pissed right now.

I'm glad the beer thread followed this one.

Not vice-versa...

KT

Well my spare was a whole nother world. Sprayed penetrating oil on and let it sit for 30 minutes. Put the three jaw on and didn't even have to use a wrench to pull it off. Slid right off like it's supposed to. From now on, any alternator that goes in the spares pile is getting a shot of oil before anything else. Heck, I'd even recommend it as routine maintenance whenever you have the engine dropped and access to the pulley nut. Back to work!