Blown Turbo? Metal On Metal Noise

[dekodE_]

Hi guys, About 3-4 months ago I noticed a "metal on metal" noise comming from the turbo/manifold region. He only happens whilst on idle. She doesn't blow any smoke at all, and still boosts alright.

Do you guys think my turbo is blown? If not, what could it be?

http://www.youtube.com/watch?v=oHFtWsJcgOE

Any help much appreciated.

[dekodE_]

I've just taken all the pipes off, and had a feel around. No shaft play at all... hmm?

[heller44]

check your heat shields and exhaust brackets, it might just be the right amount / type of vibration that could cause something to rub and make this noise.

[Rolls]

Sounds like something loose rattling, don't think its your turbo or it would get a hell of a lot louder when you boost it.

[dekodE_]

Oh true? I had a look underneath, theres a bolt on the manifold which it's washer has broken in half... And it's a little black around that area...

Could be an exhaust leak? Might just have to take it to a mechanic.

[R34GTX]

Me thinks you found the problem.

Oh true? I had a look underneath, theres a bolt on the manifold which it's washer has broken in half... And it's a little black around that area...

Could be an exhaust leak? Might just have to take it to a mechanic.

[dekodE_]

Well.. after further exploration, it it only does it with the clutch pedal is engaged, and when i push the clutch pedal it stops... Some sort of bearing I assume?

[Rolls]

Input shaft possibly, mines f**king up atm as well. Sounds pretty metallic.

[boostin_r33]

lol sounds like my vr ute!

[GeeTR]

Input shaft possibly, mines f**king up atm as well. Sounds pretty metallic.

Yah, does the noise occur when the box is in neutral, clutch out... or clutch in?

Edited June 20, 2008 by GeeTR

[Rolls]

in all gears including neutral with the clutch out, clutch in it goes away almost instantly.

Varies with revs.

[dekodE_]

Ohh, whats is involved with repairing that? and cost?

[teng]

Is the input shaft also called the propeler shaft?

I also have a like a metallic sound only when in idle coming from the turbo side.

Can't figure out what it is.

Edited June 30, 2008 by teng

[Rolls]

Well all my syncros are pretty shot as well so I'm replacing it with an rb25det box for ~$700 delivered from japan (mates importing a car so free freight) Expect to pay up to $1500 locally for a rb25 box or ~$400 for a rb20 box.

Repair would vary dramatically depending on how much of the work you could do yourself, if you can't even pull the box out yourself I'd imagine it would be similar to just replacing the box.

[dekodE_]

Cheers^

I took it to the mechanic, and he chucked it up on the hoist.

He said it was comming from the clutch reigon, and is nothing to worry about. He said its something lose or bent (fork?) in the clutch, and that it can be fixed with a new clutch change.