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06-10-2016, 05:34 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 21,897
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Not Ranked
You should use a mechanic's stethoscope, like mine below, to narrow down your noise search. It really does make a big difference and sometimes it'll surprise you. Uhhh, don't try using a real stethoscope. 
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06-10-2016, 06:31 PM
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CC Member
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Join Date: Feb 2012
Location: Keller,
TX
Cobra Make, Engine: Lonestar Classics LS427. Self-built 408W, AFR 195 heads, Performer RPM Intake, Quick Fuel 750, 407rwhp, 479rwtq
Posts: 549
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Not Ranked
Quote:
Originally Posted by Bernica
This is a way stupid question and not intended to insult you at all, but have you checked the belts and the alternator pulley? Sorry, just trying to think of things that squeal...
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Yep, thanks. Checked and the belt and pulley are tight.
Quote:
Originally Posted by CHANMADD
If you have a ceramic clutch....they can squeal a bit too.....
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Not a ceramic clutch, I think. McLeod single disk.
Quote:
Originally Posted by patrickt
You should use a mechanic's stethoscope, like mine below, to narrow down your noise search. It really does make a big difference and sometimes it'll surprise you.
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I have one of those. I'm not sure how to use it since the car only makes the sound when driving. I guess I can hang out the door with my head around the pipe and under the car, then gun it.... 
Quote:
Originally Posted by patrickt
Uhhh, don't try using a real stethoscope. |
I have one of those too! |
06-11-2016, 03:33 PM
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CC Member
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Join Date: Nov 2007
Location: Houston,
Tx.
Cobra Make, Engine: SPF #1235
Posts: 170
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Not Ranked
Inside an Spf muffler that was breaking down. 
__________________
Superformance #1235
460/T5
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06-11-2016, 05:55 PM
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Senior CC Premier Member
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Join Date: Nov 2004
Location: SoCal,
CA
Cobra Make, Engine: CSX #4xxx with CSX 482; David Kee Toploader
Posts: 3,574
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Not Ranked
Quote:
Originally Posted by dont
Inside an Spf muffler that was breaking down. |
That's what I was talking about! Great pic!
__________________
All that's stopping you now Son, is blind-raging fear.......
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06-12-2016, 05:32 AM
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CC Member
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Join Date: Jul 2005
Location: Virginia Beach, Va & Port Charlotte, Fl.,
Posts: 2,280
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Not Ranked
Quote:
Originally Posted by CHANMADD
If you have a ceramic clutch....they can squeal a bit too.....
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True... I have a dual disc McLeod RXT in my Z06. It has a ceramic discs and will squeal some if I take off with a bit too much RPMs on launch.
__________________
Too many toys?? never!
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06-01-2017, 07:04 PM
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CC Member
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Join Date: Mar 2013
Location: West Haven,
CT
Cobra Make, Engine: Lone Star, Ford 302W
Posts: 23
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Not Ranked
Digging deep, as you need to do - flat belts (alternator) can sometimes squeal if too tight. Also, if you've run the belts too tight for any length of time, the alternator or water pump bearing(s) could get fried. Don't ask me how I know.
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06-02-2017, 08:05 PM
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CC Member
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Join Date: Feb 2012
Location: Keller,
TX
Cobra Make, Engine: Lonestar Classics LS427. Self-built 408W, AFR 195 heads, Performer RPM Intake, Quick Fuel 750, 407rwhp, 479rwtq
Posts: 549
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Not Ranked
Wow, old post resurrected. I guess I never came back to post what it was (but other posts detail my problem). Ended up being two broken valve springs and seven worn intake valve guides.
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06-03-2017, 04:36 AM
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CC Member
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Join Date: Apr 2009
Location: Little Rock area,
AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,483
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Not Ranked
Didn't notice this was an old, resurrected thread.
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06-05-2017, 12:24 AM
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CC Member
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Join Date: Feb 2004
Posts: 149
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Not Ranked
Well I had the same squeal, I could only hear it at idle and just after letting the clutch out. Chased my tail for a little bit but I put my hand inside my right side pipe and there was my problem. The glass pack had broke the weld, come loose and pushed itself up against the curve at the outlet. My car would stumble at higher RPM and that was a mystery as well. I took a laser thermometer to my right side header at each cylinder and each was at least 100 degrees hotter than the left. When I mashed the gas it slid aft and somewhat blocked the pipe robbing my power. I pushed it all the way forward with a hammer handle and put a self tapping screw through the bottom of the pipe to hold it forward and my problems went away. There is a guy on youtube that has welded his when it came loose. I'll take mine off and get it fixed when it comes back from paint
Might be what is ailin ya.
Last edited by 40k Later; 06-05-2017 at 12:28 AM..
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06-05-2017, 04:21 AM
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CC Member
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Join Date: Jan 2011
Location: Rockland County,
NY
Cobra Make, Engine: West Coast Cobra/427
Posts: 853
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Not Ranked
I don't know if it has been addressed but you need to check the tranny mount that is tight and that the bushing is not compromised, same with the engine mounts as well.
My 2 cents.
Lou
__________________
 Basque1
"Cobra--Because life is too short to drive a boring car"
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06-05-2017, 03:22 PM
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Senior Club Cobra Member
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Join Date: May 2001
Location: Florence,
AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
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Not Ranked
Years ago I cut apart a Unique muffler and this is what I found.
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
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