172 Cup
Hi all,
This has been bugging me for some time now, my 172 cup has a metallic sound coming from the exhaust, somewhere around the cat / manifold. I did think that it was blowing, but there are no holes, and the cat/mani gasket is new. So now I'm thinking something is rattling somewhere, although my local garage assures me its not heat shields.
The noise is exactly the same as the noise the 172 cup is making in this youtube clip: http://www.youtube.com/watch?v=sq5-K8_tQMg
Any ideas?
This has been bugging me for some time now, my 172 cup has a metallic sound coming from the exhaust, somewhere around the cat / manifold. I did think that it was blowing, but there are no holes, and the cat/mani gasket is new. So now I'm thinking something is rattling somewhere, although my local garage assures me its not heat shields.
The noise is exactly the same as the noise the 172 cup is making in this youtube clip: http://www.youtube.com/watch?v=sq5-K8_tQMg
Any ideas?
