MINI2

Arnie · Jul 21st, 2003, 01:43 PM

Has anyone noticed a metallic resonance from their One-D exhaust? I found that after a long, fast motorway journey or hard driving in hot weather, the exhaust takes on a very loud metalic resonance sound, until the system cools down a bit and then it's back to normal

Harpo · Jul 21st, 2003, 03:02 PM

Hi Arnie,

How are you enjoying the new D - apart from loud resonating noises.

I once had that kind of noise, although not on the Mini - it was thought to be a loose element in the cat.

I sold the car - gave somebody else the problem.

One other thing, could it be the turbo?

Good luck and hope you can pinpoint the source of the noise.

Arnie · Jul 21st, 2003, 04:14 PM

I was worried at first that it might be the turbo (!), but no- it's definately the exhaust. The thought of a loose catalyst core also came to mind and it may be that when very hot, the expansion in the metal is just enough to make it loose. Also, the idling revs are a tad lower when hot and this helps excite the resonance. I don't think that it is anything serious, though, but I'll keep an eye (ear) on it. As I said it's only when it's been driven hard and then it goes back to normal after 10 minutes. Maybe it's normal and that's why I placed this post to see if anyone else has experienced it.

Otherwise, the One-D is really great and loads of fun.

Jul 21st, 2003, 01:43 PM	#1
Arnie MINI2 Newbie Join Date: Jul 2003 Local Time: 08:45 AM Posts: 20 Offline	Exhaust Rattle Has anyone noticed a metallic resonance from their One-D exhaust? I found that after a long, fast motorway journey or hard driving in hot weather, the exhaust takes on a very loud metalic resonance sound, until the system cools down a bit and then it's back to normal

Jul 21st, 2003, 03:02 PM	#2 (permalink)
Harpo Havin' fun... My Classifieds Join Date: Jun 2003 Location: ...on the run. Local Time: 09:45 AM Posts: 4,523 Offline	Hi Arnie, How are you enjoying the new D - apart from loud resonating noises. I once had that kind of noise, although not on the Mini - it was thought to be a loose element in the cat. I sold the car - gave somebody else the problem. One other thing, could it be the turbo? Good luck and hope you can pinpoint the source of the noise. The Return of The Ridgeway - Sunday May 25th 2008 The Arctic Circle Run - Summer 2008

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Jul 21st, 2003, 04:14 PM	#3 (permalink)
Arnie MINI2 Newbie Join Date: Jul 2003 Local Time: 08:45 AM Posts: 20 Offline	I was worried at first that it might be the turbo (!), but no- it's definately the exhaust. The thought of a loose catalyst core also came to mind and it may be that when very hot, the expansion in the metal is just enough to make it loose. Also, the idling revs are a tad lower when hot and this helps excite the resonance. I don't think that it is anything serious, though, but I'll keep an eye (ear) on it. As I said it's only when it's been driven hard and then it goes back to normal after 10 minutes. Maybe it's normal and that's why I placed this post to see if anyone else has experienced it. Otherwise, the One-D is really great and loads of fun.

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