Exhaust rattle at 2500k every gear

[t444smh]

Bought a brand new scorpion exhaust and decat. It's been fitted for around two months now. every time I hit exactly 2500 rpm I hear a slight rattle. If u just sit and rev the car you cant hear it. The exhaust is clear of all heat shields axle etc. No clamps are loose. Even fitted a new genuine cat fitting kit and gasket. Still no luck. Can any help or suggest anything. Thanks

 

[t444smh]

i forgot to add the exhaust rubbers are al brand new.

 

[st3ve]

Where did you buy the exhaust mounts?

 

[Gaz_]

Could be loose baffle/weld in the centre section??


I've had the the metal lambda sheath touching the centre section that can give the same symptoms.

 

[ollycuff]

i have this problem at 2500km its like a sqeeky rattle noise and doesnt sound healthfully iv had it for over a year!

 

[Wick]

Is this a trait of the RS192 lol? Mine is similar! Managed to sort the terrible cat/centre join last weekend but the rattle is still there :rasp:

 

[Gaz_]

Seriously wouldnt surprise me if it doesnt have a bad weld on the baffle or something. Had a centre section fail on a Magnex with the same issue

 

[Dan1587]

Seriously wouldnt surprise me if it doesnt have a bad weld on the baffle or something. Had a centre section fail on a Magnex with the same issue

Surely if you gave it a tap and listen, if it is, which it sounds like it is, it should rattle when given a shake.


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I am here: http://maps.google.com/maps?ll=50.851424,-3.403205

 

[Ash']

exhaust clamp?

 

[t444smh]

thanks for your comments. firstly i got the mounts from andrew pages ti max ones i think not cheap ebay stuff.

the exhaust is not the RS192 its the SCN019, the clamps are all secure and so is the sensor cable.

has anyone email scorpions about this rattle. iv had the exhaust off and theres nothing loose inside

 

[Dunn]

Heatshield

 

[Jon.G]

Clamp is probably vibrating against the heatshield.

 

[Mike_RS]

I had a rattle for ages, always happened when i got to 2800k.. Found it was the engine cover vibrating! The screws were tight too... When i fitted a decat, the exhaust clamp would vibrate on the heat shield..

 

[t444smh]

I dnt have engine cover and all heat shields, clamps are not in the way :s really puzzled

 

[Mike_RS]

in that case i don really know what it could be :dapprove: Have you considered the Dog bone mount could be worn and the engine moving is pushing the manifold against the heat sheild? On that note "IM OUT" :rasp:

 

[hatyy]

my exhaust is stainless steel and does the same thing ...........but it's a straight pipe with a silencer at the end.......

 

[t444smh]

in that case i don really know what it could be :dapprove: Have you considered the Dog bone mount could be worn and the engine moving is pushing the manifold against the heat sheild? On that note "IM OUT" :rasp:

I was thinking that might have to get one and try it.

 

[charlton_68]

I have this little rattle but at exactly 2k rpm, but seems to go when the car has warmed up after 5/10mins :S

 

[Toms_clio]

I have the same thing. It's a baffle in my silenced de-cat..

 

[Cupman29]

It will be the exhaust frequency that is vibrating the heatsheild not the contact with the exhaust itself. That's why it only does it at that particular rev.