How The Hell Does This Happen?

4valvegt · January 5th, 2012, 09:27 PM

Was on my way to work this morning when i heard a loud pop and clattering this is what I found.

Never seen this happen before

mustanginky · January 5th, 2012, 09:58 PM

i've seen it happen on a few of those 03/04 cobras

Houston mustang guy HMG · January 6th, 2012, 08:24 AM

Seems that parts that are made by humans fail. Not a thing you can do about it, except fix it and move on. I guess be thankfull you weren't at 6000 rpm when it broke.

WickedSnake00 · January 6th, 2012, 08:32 AM

Originally Posted by mustanginky

i've seen it happen on a few of those 03/04 cobras

Yup. I'm going to guess this was on the pulley bridge? Are you pullied down any, especially with a lower? The high RPM's and stress on the supercharger drive can tend to grenade stock pullies due to their relatively weak stamped construction. If you're spinning them real high or hard, most guys go to billet pulleys.

The good news is that they're on a secondary drive, so if you do have a failure, you lose your supercharger and alternator, rather than your steering, brakes, and water pump. That's usually enough to limp it home.

...of course if this new Cobra is giving you problems you could always sell it to me...

gates135 · January 6th, 2012, 09:39 AM

ouch sorry to see that

4valvegt · January 6th, 2012, 07:46 PM

Originally Posted by WickedSnake00

Yup. I'm going to guess this was on the pulley bridge? Are you pullied down any, especially with a lower? The high RPM's and stress on the supercharger drive can tend to grenade stock pullies due to their relatively weak stamped construction. If you're spinning them real high or hard, most guys go to billet pulleys.

The good news is that they're on a secondary drive, so if you do have a failure, you lose your supercharger and alternator, rather than your steering, brakes, and water pump. That's usually enough to limp it home.

...of course if this new Cobra is giving you problems you could always sell it to me...

Its for sale if the right price comes along

, it was the one right next to the crank pulley stock lower and 2.76 upper.

va boy · January 6th, 2012, 08:44 PM

I upgraded to the Metco idlers and really love em.
Sorry that happened man.

WickedSnake00 · January 6th, 2012, 10:12 PM

Originally Posted by 4valvegt

Its for sale if the right price comes along , it was the one right next to the crank pulley stock lower and 2.76 upper.

Something like these is what you need:
METCO Billet Idler Pulley 90mm or 100mm METCO Billet Idler Pulley 90mm or 100mm [MI-MIP] - $60.00 : JLT PERFORMANCE, Home of the JLT TRUE COLD AIR KIT

I know Lethal has them but for some reason Lethal's site wasn't loading for me.

...how about $1000 than you paid?

termi_GT · January 7th, 2012, 02:15 PM

Giant beaver.

On a serious note thats why guys upgrade to the billetflow and metco idlers.

DickH · January 7th, 2012, 03:31 PM

curious, what would you actually sell it for?

4valvegt · January 7th, 2012, 07:04 PM

Originally Posted by DickH

curious, what would you actually sell it for?

Well considering im not really trying to sell it but wouldnt mind paying off my student loans would pry take 14k for it. Thats just throwin a number out there havnt thought about it much i know it books for above 16 but has some flaws with the body interior almost flawless.

Cobra03Girl · January 13th, 2012, 03:58 PM

Happened to me, too. At half-track :/

stal94gt · January 13th, 2012, 04:49 PM

that is the one i always see people breaking, it must have something to do with be close to the crank. common problem, atleat your belt didnt sling around breaking other stuff

termi_GT · January 13th, 2012, 05:28 PM

Originally Posted by Cobra03Girl

Happened to me, too. At half-track :/

Why hello there!!!

4valvegt · January 14th, 2012, 05:26 PM

Originally Posted by stal94gt

that is the one i always see people breaking, it must have something to do with be close to the crank. common problem, atleat your belt didnt sling around breaking other stuff

Yea I was driving through town when this happened past the police station so not quite sure what was goin on. I could see if i was making some high rpm passes but i havnt really gotten into the throttle much since its not tuned yet.

January 5th, 2012, 09:27 PM	#1
4valvegt Enthusiast 03 Cobra Join Date: Oct 2009 Location: Nebraska Posts: 809 iTrader: 1 reviews	How The Hell Does This Happen? Was on my way to work this morning when i heard a loud pop and clattering this is what I found. Never seen this happen before __________________ MM Cobra Club #86 2003 Mineral Grey Cobra 2004 True Blue F-150 FX4

January 5th, 2012, 09:58 PM	#2
mustanginky MM Fanatic 2000 gt Join Date: Feb 2009 Location: La grange, KY Posts: 4,254 iTrader: 2 reviews	i've seen it happen on a few of those 03/04 cobras __________________ Procharged 2000 5 Speed BAB GT, built motor, blower cams, speedy dyno tune 412 hp, 450 rw tq HARDCORE CREW BRIGHT ATLANTIC BLUE CREW #1 MEMBER

January 6th, 2012, 09:39 AM	#5
gates135 Regular 2004 Sonic Blue GT Join Date: Nov 2011 Location: Lakeland, Fl AKA Orlampa Posts: 52 iTrader: 0 reviews	ouch sorry to see that __________________

January 6th, 2012, 08:44 PM	#7
va boy Regular 2003 Cobra Join Date: Dec 2010 Location: VA Posts: 320 iTrader: 0 reviews	I upgraded to the Metco idlers and really love em. Sorry that happened man. __________________ Whippled 03 Sonic Blue Terminator

January 7th, 2012, 02:15 PM	#9
termi_GT Hardcore Enthusiast 12.41@114 Join Date: Dec 2011 Location: Joplin, MO Posts: 1,320 iTrader: 1 reviews	Giant beaver. On a serious note thats why guys upgrade to the billetflow and metco idlers. __________________ MM FOBRA CLUB CO-FOUNDER

January 6th, 2012, 08:24 AM	#3
Houston mustang guy HMG On Probation My sister Faster Then My Mom Join Date: Nov 2007 Location: BFE Posts: 115 iTrader: 0 reviews	Seems that parts that are made by humans fail. Not a thing you can do about it, except fix it and move on. I guess be thankfull you weren't at 6000 rpm when it broke.

January 7th, 2012, 03:31 PM	#10
DickH MM Fanatic 2003 gt 5.4 32v on the way Join Date: May 2007 Location: Omaha Posts: 4,189 iTrader: 2 reviews	curious, what would you actually sell it for? __________________ 2003 Mustang gt - usual mods - slowly working on 5.4 swap 2004 srt4 - Stock DD/winter beater Click here for your tuning needs Before asking a gearing related question click THIS link and enjoy all your saved time.

January 13th, 2012, 03:58 PM	#12
Cobra03Girl Look Ma! My First Post! Join Date: Jan 2012 Posts: 1 iTrader: 0 reviews	Happened to me, too. At half-track :/

January 13th, 2012, 04:49 PM	#13
stal94gt I Post Entirely Way Too Much 2003 mustang v6 ;) slow Join Date: May 2010 Location: eglin afb florida Posts: 10,197 iTrader: 2 reviews	that is the one i always see people breaking, it must have something to do with be close to the crank. common problem, atleat your belt didnt sling around breaking other stuff __________________ bone stock from the factory!

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