knocking vibrating noise 182

[jay-clio182]

On starting up my 182 straight away there's a knocking noise sounds very tinny, then vibrates a bit and starts again, then usually stops around 25mph! has anyone else experienced this on a 172/182? cheers

 

[Els]

I think mines doing the same... mine does it on idel as well and some times when the revs drop. im pretty sure its the heat shield, im taking my car on my mates ramp next week i can let you kow exaclty what is it of its the same aye...