LS1GMCTruck

iTrader: (2)

Mine is very loose or sloppy when I slide it on the aluminum male boss. Is this normal, or am I missing a sleeve/tube or something, that fits on the inside diameter of the bearing, that would give it less play?(Have the Vette alternator bracket.) Thanks

bayer-z28

iTrader: (14)

Usually just take it off and put it back on.. Nothing special. The inner bearing race should seat on something though.

LS1GMCTruck

iTrader: (2)

It actually does seat, or bottom out properly, when I slide it over the aluminum pilot boss. But when its all the way on, it rocks back & forth, with excessive play. So, I'm wondering if there's a fix for this? It can't be normal. This, I discovered, is the source of my chirping noise. Am I missing something?

sjsingle1

iTrader: (1)

you using a f bod pulley on a vette bracket???

LS1GMCTruck

iTrader: (2)

That "might" be a possiblility. I had one of each in the garage, when I put the accessories on the front of the engine. Are you saying the inside diameter(the i.d.) of each of these two bearings/idler pulley's, is a different size? You might be on to something there.

Pocket

iTrader: (22)

OD is what should concern you. GM uses the same 17mm ID race on just about everything

LS1GMCTruck

iTrader: (2)

So, the hole in the center of the bearing, the i.d...is the same for the Vette idler bearing and the F-Body idler bearing? And that's 17mm? Good to know.