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04-01-2013, 07:39 PM
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#1 |
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Car Lover By Nature
Drives: 2016 Hyper Blue Metallic SS Join Date: Dec 2009
Location: Central FL
Posts: 2,327
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A question about supercharger noises from an LSA engine.
I've been noticing a weird sound that's coming from the supercharger on my ZL1's engine. It kinda sorta sounds like a worn out bearing on an idler pulley but a little louder. (Almost like someone put a few marbles inside and they're slapping around inside.) I took the car to the dealership and they said all LSA engines make the same sound. They reassured me everything is completely normal. They said its because its a twin-screw type of supercharger which is why its making those sounds. They also said the CTS-V version actually makes more noise than our ZL1s.
So I'm asking here. Does your S/Cer make any weird, rattling kind of noise(s) or is it silent?
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04-01-2013, 07:43 PM
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#2 |
 Drives: 2012 Toyota FJ Cruiser Join Date: Oct 2012
Location: Newnan,GA
Posts: 156
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Yes its normal for the LSA but is it something that should happen? Thats debatable. Search "solid isolator" and you'll find a ton of information on this subject.
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04-01-2013, 08:26 PM
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#3 | |
 
Drives: '13 Black ZL1,MN6,Suede pkg, Join Date: Oct 2012
Location: Scottsdale
Posts: 90
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Quote:
Its probably the spring loaded idolater. This is what mine looked like after only 2200 miles! The grooves are really deep... |
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04-01-2013, 08:35 PM
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#4 | |
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Car Lover By Nature
Drives: 2016 Hyper Blue Metallic SS Join Date: Dec 2009
Location: Central FL
Posts: 2,327
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Quote:
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04-01-2013, 08:46 PM
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#5 | |
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Drives: '13 Black ZL1,MN6,Suede pkg, Join Date: Oct 2012
Location: Scottsdale
Posts: 90
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Quote:
The problem is the stock isolator coupling is spring loaded and is just a bad part from the factory. The metal spring pings against the shaft causing the noise and wear. That is why people replace it with a solid no spring isolator coupling when they pull their SC snout off to change pulleys. http://www.lingenfelter.com/mm5/merc...5#.UVo4O5Pvt8E |
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04-01-2013, 08:48 PM
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#6 |
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Car Lover By Nature
Drives: 2016 Hyper Blue Metallic SS Join Date: Dec 2009
Location: Central FL
Posts: 2,327
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So how hard is it to install? Would it void my warranty?
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04-01-2013, 08:58 PM
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#7 | |
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Drives: '13 Black ZL1,MN6,Suede pkg, Join Date: Oct 2012
Location: Scottsdale
Posts: 90
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Quote:
That's the bummer, You have to take off your SC lid/cap, unbolt your SC and lift it about an inch and a half off the block to pull off your SC snout. As far a voiding your warranty, I would't want to give advise on that, it all depends on your dealer I guess. It would really be ridiculous if it dd void the warranty considering the aftermarket part is superior to the OEM and it actually extends life to you snout vs eating away at it. I spent a lot of time researching all the service departments at all the local dealers by me and picked one that is mod friendly and will fight for getting things warrantied. I would never use the service dept from the dealer that I bought my car and I would never have bought my car from the dealer that services me as weird as that sounds. One is great for service and the other is great with pricing and not marking up Z's. |
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04-01-2013, 09:02 PM
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#8 |
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Drives: '13 Black ZL1,MN6,Suede pkg, Join Date: Oct 2012
Location: Scottsdale
Posts: 90
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Pics of the lid off and SC off the block
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04-01-2013, 09:10 PM
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#9 |
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Car Lover By Nature
Drives: 2016 Hyper Blue Metallic SS Join Date: Dec 2009
Location: Central FL
Posts: 2,327
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Well that's just stupid that GM uses a part that will cause premature failure like the first pic you posted. I would buy the solid isolator and even pay to have it installed as long as my warranty stayed intact.
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04-01-2013, 09:16 PM
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#10 |
           
Drives: 2012 ZL1 - #670 Join Date: Jun 2009
Location: Seminole, Fl.
Posts: 8,009
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You pull apart the S/C and your on your own. According to GM the noise is normal, and is warranted for 100K. Personally I wouldn't mess with it until your ready to give up your warranty.
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04-01-2013, 09:16 PM
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#11 | |
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Drives: '13 Black ZL1,MN6,Suede pkg, Join Date: Oct 2012
Location: Scottsdale
Posts: 90
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Quote:
Well, its not a "performance enhancing part" so i highly doubt they would void warranty. They would have to show that the aftermarket part caused failure to whatever you were trying to get warrantied and I highly doubt they could ever say that a solid isolator caused damage over and beyond what their OEM part has done or will do. |
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04-01-2013, 09:51 PM
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#12 | |
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Drives: 2012 ZL1 - #670 Join Date: Jun 2009
Location: Seminole, Fl.
Posts: 8,009
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Quote:
If you don't know for sure or have something in writing to prove what your saying, don't tell people no warranty issues. I sure if you break the seal on the S/C the warranty is over. That would be like breaking down the engine and putting it back together again, and expect your warranty to stay intact. Don't hold your breath ...
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04-01-2013, 09:55 PM
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#13 | |
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Mid-Florida Camaro Club
Drives: 2019 ZL1 on Order Join Date: Jan 2011
Location: Heathrow, FL
Posts: 3,136
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Quote:
 x 1000Incidentally, I don't have this noise on mine, although I have heard many others comment on having it - there is a thread on here somewhere all about it EDIT: Found the thread - http://www.camaro5.com/forums/showthread.php?t=263064 About 50/50 in terms of people who have it versus those that don't
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