LS9 Clutch Carnage
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 15 of 18
2004-2007 Cadillac CTS-V Performance Mods Discussion, LS9 Clutch Carnage in Cadillac CTS-V Series Forum - 2004 - 2007; Broke the pressure plate last Tuesday night. One of the fingers broke and took out the starter housing and blew ...
  1. #1
    PISNUOFF Guest

    LS9 Clutch Carnage

    Broke the pressure plate last Tuesday night. One of the fingers broke and took out the starter housing and blew a couple holes in the bell housing.








  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    jpoole's Avatar
    jpoole is offline Cadillac Owners Fanatic
    Automobile(s): 2010 Cadillac CTS-V
    Join Date
    May 2007
    Location
    McKinney, Texas
    Posts
    276

    Re: LS9 Clutch Carnage

    Damn man. Were you having a vibration problem at 1800 - 2300 and then gone just due to the increased RPM? I put a kit in and am having the vib problem. I had it balanced yesterday and am waiting for the reinstall, but I won't be getting this back till tomorrow. The way mine was vibrating, seemed like it would cause a failure. I had both my clutch and flywheel balanced and was told that both were way out of neutral balnance. Just hoping neutral balance is correct as every vendor / manufactorer has said they were but the service manual is different.

    Also, did you use new GM bolts or ARP?

  4. #3
    PISNUOFF Guest

    Re: LS9 Clutch Carnage

    That's an LS9 pressure plate that failed in 4th gear at 5500 rpm. It went 'bang' and I couldn't disengage the clutch anymore. I had to shift with the clutch the rest of the way home.

  5. #4
    whisler151's Avatar
    whisler151 is offline Cadillac Owners Connoisseur
    Automobile(s): 2011 CTS Coupe, 2010 Ford Raptor
    Join Date
    Apr 2007
    Location
    Dallas, TX
    Posts
    3,547

    Re: LS9 Clutch Carnage

    Damn. That sucks. I bet that bang scared the sh*t out of you.

  6. #5
    CancerJCC is offline Cadillac Owners Connoisseur
    Automobile(s): 04' Blown CTS-V 554rwhp 497rwtq
    Join Date
    Aug 2009
    Location
    Georgia
    Posts
    1,788

    Re: LS9 Clutch Carnage

    Quote Originally Posted by whisler151 View Post
    Damn. That sucks. I bet that bang scared the sh*t out of you.
    Yeah ouch. Sucks Brian, why do you figure it failed? Just a normal defect within tolerance and you got "unlucky" or something wrong completely?

  7. #6
    PISNUOFF Guest

    Re: LS9 Clutch Carnage

    Quote Originally Posted by whisler151 View Post
    Damn. That sucks. I bet that bang scared the sh*t out of you.
    Heck yeah it did. It was full bore 4th gear. I'm thinking it had to be a manufacturing defect because I can't believe that I'm the only one consistently punishing this clutch.

  8. #7
    crankedupforit's Avatar
    crankedupforit is offline Cadillac Owners Connoisseur
    Automobile(s): 05 CTS V 07 ESCALADE
    Join Date
    Feb 2007
    Location
    Cheese land
    Posts
    1,596

    Re: LS9 Clutch Carnage

    Quote Originally Posted by PISNUOFF View Post
    Heck yeah it did. It was full bore 4th gear. I'm thinking it had to be a manufacturing defect because I can't believe that I'm the only one consistently punishing this clutch.
    I'm sure your right about that. The LS9 clutch is a mature well engineered piece.

  9. #8
    CI-V-IL is offline Cadillac Owners Fanatic
    Automobile(s): 2004 Raven Black CTS-V
    Join Date
    Dec 2010
    Location
    Fishers, IN
    Posts
    135

    Re: LS9 Clutch Carnage

    OUCH! At least you got a new sig out of it:

    PISNUOFF
    Exploding LS9 Clutches Like It's My Job.
    Cadillac(s) I Drive:2007 CTS-V

  10. #9
    rjoffe is offline Cadillac Owners Connoisseur
    Join Date
    Jul 2005
    Posts
    1,567

    Re: LS9 Clutch Carnage

    Quote Originally Posted by PISNUOFF View Post
    4th gear at 5500 rpm.
    That's moving right along!

  11. #10
    shadybx7's Avatar
    shadybx7 is offline Cadillac Owners Connoisseur
    Automobile(s): 2005 Platinum CTS V-Headers+3in pipes
    Join Date
    Apr 2008
    Posts
    3,483

    Re: LS9 Clutch Carnage

    the fatty strikes again.. Katech giving you any hassle about getting it warrantied for a defect?

  12. #11
    PISNUOFF Guest

    Re: LS9 Clutch Carnage

    I didn't buy it from Katech. I Only bought the flywheel from them. I deal with Luke for all my stock GM parts. I'm sure there isn't going to be a problem getting the issue taken care of.

  13. #12
    c4ss's Avatar
    c4ss is offline Cadillac Owners Connoisseur
    Automobile(s): 2005 CTS-V, Black
    Join Date
    Jun 2008
    Location
    Northern New Jersey
    Posts
    2,173

    Re: LS9 Clutch Carnage

    That's a serious clutch you just shredded. Here's to hoping it's a defect

  14. #13
    PISNUOFF Guest

    Re: LS9 Clutch Carnage

    I am pretty sure it was a defective strap, although the other ones seem to have some discoloration from heat. At least after 3000 miles, the mating surfaces still look perfect.



    Here is the discoloration.


  15. #14
    rand49er's Avatar
    rand49er is offline Cadillac Owners 10000+ Posts
    Automobile(s): 2005 CTS-V, 2011 Cruze 1.4T 6MT
    Join Date
    Jan 2005
    Location
    South Lyon, MI
    Age
    65
    Posts
    13,263

    Re: LS9 Clutch Carnage

    I can just hear the racket in those first few pics ... must've a bit noisy.

    Yeah, 5500 RPM in 4th gear is some serious speed. Were you in Mexico again?
    '05 CTS-V, Maggie, Kooks, Hotchkis, Ground Control, Corsa, B&M, DSS/Hendrix, Full 3M Clear Bra, Autovation, V Headrests, CTS Console, STS-V 55w Fogs, Black Vette FRCs, Specter Werkes, Katech LS9 Clutch, SS Brake Lines, Heavymetals U-Turn Fuel Line Eliminator, Momo Combat Evo Shift Knob, Wldwhl Clear Sidemarkers, Linea Corse LC855 Wheels or OEM wheels w/'06-'07 Center Caps, plus a couple more. 472 RWHP/411 RWTQ (Mustang Dyno).

  16. #15
    PISNUOFF Guest

    Re: LS9 Clutch Carnage

    Randy - Como fue la Florida?

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting