Rattle In Bell Housing Help

[thatderekguy]

First off I would like to say I am new to the mustang world and am excited to learn about these cars. I am however having a little problem with the 01 cobra that I have just traded for. I don't know a lot about the car I got it from a 60+ yo man who also couldn't tell me much about it. lol It does have a JLT short ram, aftermarket crank pulley,JBA headers, off road x pipe. Anyways, I have a metallic tapping noise that I cant seem to figure out where it is coming from exactly, but I believe Ive narrowed it down a little so maybe someone can help me out. I will be posting a video soon to help out with the noise also. It is loudest around 2k rpm range, doesn't do it so much at idle and sometimes randomly I cant get it to make the noise at all. THe majority of the time though it makes the noise and hear it most when shifting gears. I first thought it was a rod bearing, so I killed the cylinders to see if it changed the noise at all, didn't change. Listening by ear it sounds like the noise is coming from behind the engine, not the front so I don't suspect the timing chain, although I did pull the valve covers to check if it was loose and it wasn't. So I got ahold of a stethoscope and started probing around a bit , I could not hear the noise in either the oil pan or the valve covers but I do hear it coming from the transmission/bellhousing area. I pulled the cover off and the clutch looks shiny, like it isn't very old, I am just wondering if it may be the flywheel has loosened up maybe wasn't tightened up if when it was replaced, and if it not, what else could possibly be making the noise . Any help is appreciated. thanks.

 

[madspeed]

Grab that video and post it up. It will help greatly

 

[thatderekguy]

View: http://youtu.be/AkxoBF1lHCE

 

[thatderekguy]

couldnt get it to make the noise until halfway through the video around 25 seconds you can hear it. The quality isnt great though , used my cell phone.

 

[madspeed]

sounds like an exhaust leak to me

 

[madspeed]

sounds like an exhaust leak to me

 

[thatderekguy]

cant hear it really good in the video, but its definitely a rattle, ill try to get a better video today, i took that one in my garage and was getting alot of echo noise from the car.

 

[trombonedemon]

If it has aftermarket clutch, more than likely it has an aftermarket throw-out bearing. Needle bearings make a racket, if you have narrowed it down to the bell-housing. I never had that rattle until my throw-out bearing was replaced. Ford Racing if have to change the bearing. 2000 gt is the car under my care.

 

[thatderekguy]

Did yours make that same sound with identical symptoms?

 

[trombonedemon]

Did yours make that same sound with identical symptoms?

Many parts are gonna tick. Injectors tick, the lifters tick. If you can hear the rattle in the cab, throw out bearing. I heard my timing chain in the cab as well, but you said bell housing. Nothing to worry about in my opinion.

 

[thatderekguy]

I figured if it was the tob that it would at least change the sound of the noise a little bit when the clutch is pressed, but sounds the same.

 

[Gearbanger 101]

If the previous owner installed an aftermarket clutch, it's possible there might be some slight contact interference with it and the bellhousing. I went through this issue with the CJ Pony Parts "King Cobra" clutch on my Fox body.

Pull the inspection cover off again and see if you can notice any really shiny edges on the flexplate where it could be contacting the bellhousing. You should be able to hear it with the engine running and you're that close?