Well the dealer found out what one problem was on my car the grinding noise that we heard under the hood was the supercharger. The dealer said they put a bottle and a half of oil in to fill it up.
My understanding from them was that it only holds 8 oz.
Each bottle was 4 oz.

 

did they inspect the gears inside the blower before they just filled it up???

if i understand you rite....your sayin that the gear case on the blower had NO oil in it...

thats total BAD NEWS is she ran dry for more than a split sec!

 

I guess it has been that way for awhile.
No they did not inspect anything just put oil in.

 

I would like to know where the oil went?

 

WHOOOOOOOOOOOO

is the blower ran dry for a while i'm suprised the dam thing still works!!

the Bearings are prob totaly cooked and it might be a matter of time untill they fail.

 

what kind of oil does it take anywayz i was told u cant check the level properly on these superchargers? is that true i know i see the screw there

 

dude keep complaining about the supercharger. that somethings wrong w/ it. cuz if it ran w/o oil then something will f up soon. so keep complaining that way when it fails and say fails right after your warranty ends u can say hey, " i bitched to u guys over and over that something was wrong and u did nothing. now its finaly gone and my warranty is up u want to fix it by me payin for it. " that way u can call gm corp and bitch to them as well.

 

Where do you fill up the oil for the supercharger. I was told it uses the motor oil and that there is no seperate res. to fill. What's the deal?

 

It's self containted. No engine oil like a turbo.

 

The SC is supposed to be a sealed unit... nothing to fill... for the life of the car.

If it leaked.... there's something majorly wrong.

 

Hi wickednick911 -

The 2.0 SC eaton sc unit is plumbed into the engine crankcase oil supply.

Where did the "service tech" add oil? Very interested to hear this one.....

The older eaton roots units (like in a GTP etc) used a separate oil supply (self contained in the SC itself) and those required changing periodically.

The reason you do not have to change the oil in the Cobalt unit is that it is essentially changed when you change the engine oil.

best regards -

mqqn

 

That's what I needed to know.

 

Hi CTCOBALTSSS -

Ok - I just called my service manager where I bought the car - these guys also service my vettes when I need work and I trust that they know their stuff (it is the chevy dealer where I bought my cobalt and my wifes vette).

They said - and I quote:

"The Eaton unit on the 2.0 Cobalt is factory filled with oil, and is a sealed unit. It is designed to last tie life of the unit, and it is not serviceable."

So - I am still interested in where the service tech in the first post added oil into the SC, and if the SC was dry of oil, it either leaked and created a mess, or it was not properly filled at the factory.

Either way - the SC unit in the car that ran "dry" should not be trusted IMO.

best regards -

mqqn

 

Interesting. I was going off this from Eatons site:

"How is an Eaton supercharger different from a turbocharger? A supercharger is connected directly to the crankshaft by a belt unlike a turbocharger which is driven by exhaust gases. An Eaton supercharger provides improved horsepower and torque, at lower engine rpm's, by pumping extra air into the engine in direct relationship to crankshaft speed. The positive connection yields instant response, in contrast to turbochargers, which must overcome inertia and spin up to speed as the flow of exhaust gas increases. The supercharger is a way to get around "turbo lag". The lubrication system also differs, in that, the supercharger is self-contained whereas the turbocharger requires engine oil."

and the fact that INTENSE sells supercharger oil.

Any insight?

edit: nm you answered my question.

 

Hi Pyro - read above -

best regards-

mqqn

 

this is the fill point on the supercharger.

 

S/C is sealed for life. Did they take the S/C off and place it on a level surface? With the SC installed, the level will be below the hole because of the angle of the motor!

 

Bah!
Head back to the cornfield!
The LSJ oiling system is NOT "plumbed in" to the supercharger in any way shape or form
The M62 uses a sealed synthetic oil supply in front drive crankcase that is essentially "fill for life"
(it's accessed via the small black plug on the front of the housing)

HOWEVER on the LSJ the supercharger must be REMOVED in order to place the supercharger "level" for filling the case. You are very likely overfilled because they did that on the car and charger is at a 30 degree angle.
I would take it back to them before it pukes a seal.
HTH
WopOnTour

 

Hi Wop -

Read post # 13.

best regards -

mqqn

 

ok guys if the supercharger isnt plummed into the engine why does the 2. take a full quart of oil over the 2.2 i was under the impression that extra was for the blower

 

mqqn
What your dealership is telling you is definately the "official" GM word on the supercharger oiling system. As far as GM and dealerships are concerned- it's a sealed "fill for life" system. However GM themselves SELL the Eaton supercharger oil through their parts department.

However that being said, there ARE companies (like INTENSE for instance)
that offer sc snouts where the oil is dropped and will need to be replaced. AS mentioned there IS a fill plug on the front housing to facilitate this.

I've personally never heard of one of the Cobalts delivered without supercharge oil- but anything's possible. If it LEAKED out there would be a hell of a mess of course and under the GM policy that sc would be REPLACED as they dont techncially service ANY part of the charger with the exception of the bypass actuator and SCIP sensor.

Regards
WopOnTour

 

I'm pretty sure even in the regular maintinance that I read somewhere that the oil should be replaced after 60k.

but if my supercharger did not have oil, I whould MAKE them replace it not just top it off. I wouldn't want to risk it ceizing up on my once the warrenty is up.

 

Dam WOP....i mean HOT DAM once agen 100% rite.

 

One reason is the 2.2L does not have an oil cooler.

 

Ok so essentialy it is "filled for life" but can be accesed if need be. Good to know. I guess the blower would have to removed though for a proper filling reading. This is all good stuff.

Now. I know new supercharger oil did not come in the stage 2 kits and I know the blower had to be removed to install stage 2. So what are the techs doing after they take the blower off? Are they not refilling the oil during install or what. I wonder if us GM Stage 2 guys should worry? Where would they have gotten the oil to refill?