Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

strange sound question?

Thread Tools
 
Search this Thread
 
Old Mar 2, 2009 | 01:23 AM
  #1  
Ws6power1's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Sep 2008
Posts: 203
Likes: 0
Unhappy strange sound question?

My clutch and transmission seem to be working ok, but I'm hearing a weird sound. It's a spec stage 3 that has about 15K miles on it but no track passes and really never even been dumped. When I let the clutch out slowly from a stop I hear a squeeling sound. Like to things are rubbing on each other while one is turning. I know that's how a clutch works, but why would it make this sound. Also it really only seems to do it when it's cold.
Reply
Old Mar 2, 2009 | 09:04 AM
  #2  
PewterScreaminMach's Avatar
TECH Addict
iTrader: (7)
 
Joined: Sep 2006
Posts: 2,628
Likes: 2
From: Austin, TX
Default

I had this same exact issue with my Spec 3. Typically it means something has built up or gotten onto the friction disc (fluid, clutch dust, etc) and you just need to clean it off. Take it out and come to a complete stop, bring the RPMs way up and dump the clutch running it through the top of second (don't crash, though, if your car is all over the road). A couple hard dumps and it will clear the material right off, then it won't squeal anymore.
Reply
Old Mar 2, 2009 | 11:45 AM
  #3  
SPEC-01's Avatar
FormerVendor
iTrader: (2)
 
Joined: Feb 2007
Posts: 2,507
Likes: 0
Default

In truth, it isn't unusual to hear some sound during engagement when using a carbon-semi-metallic disc. This results from the interaction of the metal face on the flywheel and the metallic compoun of the disc. I am betting that you have seen this occur relative to temperature too. Cooler temps generally cause this sound to be more evident. Please let me know if you have any further questions.
Reply
Old Mar 2, 2009 | 01:38 PM
  #4  
PewterScreaminMach's Avatar
TECH Addict
iTrader: (7)
 
Joined: Sep 2006
Posts: 2,628
Likes: 2
From: Austin, TX
Default

Originally Posted by SPEC-01
In truth, it isn't unusual to hear some sound during engagement when using a carbon-semi-metallic disc. This results from the interaction of the metal face on the flywheel and the metallic compoun of the disc. I am betting that you have seen this occur relative to temperature too. Cooler temps generally cause this sound to be more evident. Please let me know if you have any further questions.
Yeah, I don't recall if it was more prevalent in colder temps, but I do remember it being extremely loud (to the point where anyone who got in my car would ask what was wrong with it as we would pull away from a light). It went away after I took it to a track rental and made a few passes with hard launches. The sound never came back after that. I've also had experience with three other Spec 3 clutches and none of them made this sound.
Reply
Old Mar 2, 2009 | 01:57 PM
  #5  
BlackScreaminMachine's Avatar
Internet Mechanic
20 Year Member
iTrader: (17)
 
Joined: May 2005
Posts: 9,830
Likes: 2
From: Wallingford CT
Default

^^ Yes, your car had a awful squawk to it......
Reply
Old Mar 2, 2009 | 02:35 PM
  #6  
Ws6power1's Avatar
Thread Starter
Launching!
iTrader: (1)
 
Joined: Sep 2008
Posts: 203
Likes: 0
Default

Thanks for the advice guys. Sounds like hopefully I just need to have a little fun tonight and dump the clutch a few times. Spec - 01 you are right that it is worse when it's cold outside, but it has just started making this sound in the last week so I'm hoping it's just some dust built up. Thanks guys
Reply
Old Mar 2, 2009 | 03:15 PM
  #7  
camar0corey's Avatar
TECH Junkie
15 Year Member
iTrader: (22)
 
Joined: May 2006
Posts: 3,974
Likes: 2
From: Spring Hill, FL
Default

I had a noise that was prevalent when cold, but then got worse. I had my clutch builder look at my clutch today and he gave it a clean bill of health. He told me it sounded like my pilot bushing was spinning on occasion. Could possibly be your pilot bushing.
Reply




All times are GMT -5. The time now is 12:02 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE