stevieturbo

This is simple. Engine off, belt on as normal. Can you reach your hand in and turn the impeller ?

baycityrides

nope cant move the impeller, its solid i pulled the dip stick out of it after removing the blower, it was low slightly and then i drained all the oil, not a spec of metal flake or anything in there... goddamn thing is still a mystery!! hopefully procharger can give me some answers!

stevieturbo

Does your alternator have a clutched pulley ?

NBM-LS1

iTrader: (7)

That's normal. You can see in the video that you are running the sprag pulley.

baycityrides

nope no sprag pulley, everything is a solid pulley and keyed, crank to procharger. i run a 12 rip 4.00 pulley.

NBM-LS1

iTrader: (7)

Hmm. I see. It looked like it was cog in the video but the 12 ribs explain that.

baycityrides

called procharger... even they has no explanation... they are calling back this afternoon to tell me to run it or not. so the mystery continues!!

got-a-ls1

iTrader: (12)

if the key is broke or anything else it might spin but not make boost. so does it make boost?

baycityrides

yes it makes boost

haulass350

iTrader: (2)

could the inner impeller housing have been broken and be spinning on the impeller when it stops spinning?

stevieturbo

Then it seems impossible that it is spinning after shutdown as you say.

Again, post a video of the actual impeller spinning after shutdown. All the video you posted does is let us hear a noise.

haulass350

iTrader: (2)

or maybe the oil slinger teeth are chewed up or worn down causing it to keep spinning after the impeller stops

baycityrides

this is what procharger sent me. We reviewed the video with our repair department and we're not sure what the problem is with your supercharger. We've never seen anything like it actually. We're pretty sure that something internal is damaged however. We recommend that you send it in for inspection and repair if needed. You can call us with the serial # of your supercharger to set up a return at your convenience.

stevieturbo

I'd say they're baffled because the video doesnt actually show the impeller rotating ?

We can hear a noise of something rotating though. You've already stated you cannot move the impeller by hand with the engine off, so it should be impossible for it to spin on it's own.

silver_82

exactly. video it with your phone or somethin and have someone else shut it off. The more info you can gather the better. check and see if the impeller spins, see if the pulley is still spinning. You may have an issue with the unit but id be damn sure its bad before I would send it in.

baycityrides

So I brought it into work ( I work in a shop environment)) and I grabbed a 700rpm drill with a 3/8 socket bit and slapped a socket on the end and spun it up held it for like 10 seconds and she stops solid... I have no clue what's going on while its on the car but strapped to a bench it's functioning normally...

HRHohio

I'm thinking you got a bird stuck in there. Check for feathers?

(Sorry, no help here.... just entertainment )

Bob@BruteSpeed

iTrader: (16)

That's weird Don! I'd hate to see you send the blower in at this time of the year if nothing is wrong with it, as ProChargers blower room is currently backlogged. A lot of people have been buying used blowers and sending them in for rebuilds, besides the new orders that come in. Bob

Bob@BruteSpeed

iTrader: (16)

After listening to the video again, I'd run and shut the car off while using a stethoscope to try to isolate exactly where the noise is coming from. The noise is loud enough you should be able to track it down. Bob

HexenLord

Put a small mirror in front of the inlet. If you have a gf/wife, grab one from her makeup bag. It'll tell you if the impeller is still spinning. That'll help narrow it down quite a bit. Just have a friend start/shutoff the car for you.