schmendog

iTrader: (10)

Im swapping my cam right now and while Im in there id like to swap my squeaky alternator pulley. GM, Summit, jegs, Dayco doesnt sell them seperate from the alternator. Anyone know where you can get a STOCK size one?

sjsingle1

iTrader: (1)

the alternatorman sells stock 1s

sjsingle1

iTrader: (1)

but are you sure ITS the pulley?

schmendog

iTrader: (10)

pretty sure. If i spin the pulley with no belt on it it squeaks

sjsingle1

iTrader: (1)

could it be the bearings?

schmendog

iTrader: (10)

Im not sure, Im not too farmiliar with Alternator parts so I just figured it was the pulley. Do you know of a way to tell the difference?

chadroosa

iTrader: (14)

its in the alternator... pulley doesnt spin freely..

soundengineer

iTrader: (16)

take the pulley off...spin the alternator....
you will see that its not the pulley squeaking, its the alternator itself, which means its the bearings inside
you can buy a rebuild kit...but I would highly suggest you just replace the alternator all together....its not hard to do a rebuild, but guessing from your lack of knowledge about how the pulley is put on, I would say its safer to just go new.

if you pulley actually spins and squeaks...then you need a new alternator anyways as you have destroyed the outside of the bearing if the actual pulley spins...there would be a lot of metal shavings and dust and it would look like the alternator was eating itself.... it would also make a god awful grinding noise and probably be throwing belts a lot.