Super Charger Sound w/ video help
Here is a video I shot while doing it. Keep in mind it hasn't rendered fully on Youtube but you can at least hear the noise and see what I'm doing. The power was unplugged during this entire video
http://www.youtube.com/watch?v=hXle2PNYoIc
Last edited by Budget Baller; Feb 17, 2011 at 12:04 AM.
Also to verify, the shims would go between the area shown in the pic below correct?
Do you have a link to purchase the correct shims by any chance?
Thanks again I appreciate your help
EDIT: my brother says these should work?
http://www.4-tecperformance.com/inde...roducts_id=700
Here is something Interesting my brother found another thread (right here on MB world) and the guy in this video has the EXACT same noise as my car
http://www.youtube.com/watch?v=LAcmJRZrpBo
Someone mentioned in his thread it's the Clutch bearing. Is this the same as the supercharger baring? If so I may as well order both parts. Kill two birds with one stone.
The Best of Mercedes & AMG
The only way seems like to remove the front of the super charger, which can't be done because the stupid clutch is in the way of a couple bolts...
Any idea how to remove the thing?
(Idiot in training) I don't have a camera and he's in the middle of putting everything back together (he has school in the morning) but it was pretty easy to take everything apart. There was at least 5 shims on there. (How many should there be?)
I'm also not sure where we'd find those. He says a shop could make some. I assumed they'd be like a washer but they are almost paper thin.
EDIT: one thing to note might be helpful. The clutch plate did looked scratched as if something was scraping it, but I'm guessing this is because they come together when the SC engages?
Last edited by Budget Baller; Feb 18, 2011 at 12:49 AM.
One good thing to note, the SC bearing looks almost brand new and is very quite. So you where right, it isn't that at all. Guess we'll have to wait till tomorrow.
If your ever in So Cal I owe you a beer or two
Well he didn't torque the bolt.. will have to do that tomorrow I suppose.
Either way I drove it home and it didn't blow up lol. We did manage to change out the Super Charger oil (smelled horrible) black and nasty. Filled the SC back up. Some people notice a difference I honestly don't.
While it's extremely irritating and honestly the noise is starting to **** me off we are making progress. Oh and check this out, the owner before filled the coolant system up with water...no coolant at all...So that needs flushed and filled.
Last edited by Budget Baller; Feb 18, 2011 at 03:43 AM. Reason: Figured out NM
Rather than take the entire thing apart again today I stopped by Pep Boys and picked up a feeler gauge. The space between the pulley and clutch is .30 which is what it's supposed to be. So my guess is, the spacers are not the issue
I'm at a total loss here. There isn't much play so I don't think it's the coupler, we spun the pulley on it's own and the bearing sounds great, the spacing is correct. I'm about to just hit it with a hammer and see if that helps. (kidding of course)
you shouldn't drive it ...it sound pretty bad..next thing metal shaving going to F*Up your supercharger..
i posted a thread and parts info before..I guess you don't listen
How do we remove the clutch?? Or do we have to remove the entire super charger?

Well the the AMG gods where with us today and my brother really worked is magic. 2 days ago I ordered the SC pulley bearing just in case. Figured we may as well change that as well.
Well today we pulled everything apart and listened to the bearing. It didn't sound bad but you could feel the bearings moving around, it was dirty and a PITA to remove. Stuck the new bearing in, (OEM) filled up the power steering fluid while we where at it (the pump sounded a bit loud) and WOW does the car sound QQUUIIITTEEE. It's like a brand new car. All you hear is the engine the way it should be. Once the lit is closed the sound sort of reminds me of the noise a 777 makes while inside the cabin. Just awesome.
I can't thank everyone here enough for all your help you guys are awesome.
Couldn't have done it without you and my bro.So to some it up for future Googlers...The sound in the video was fixed by replacing the pulley bearing. (Make sure gap between the clutch and pulley as stated by gt4awd is .30 or so)
I drove around pretty much for no good reason tonight but I really enjoyed the ride.



