Strange rattling noise while accelerating (3k - 5k rpm)

[frostbyte]

So here I am with another possible issue. I'm starting to love french cars

If I press the pedal down and accelerate, I can hear a throaty rattling sound. It stops around 4k - 5k rpm, maybe even less. It sounds a bit like grinding metal and also as if 2 systems are synchronising.

Seems that this guy has had a similar issue:
http://www.cliosport.net/threads/funny-noise-when-accelerating-hard-in-low-gears.98760/

I am not sure if it's also doing it while stationary, I will check tomorrow.

I have checked engine mounts, heat shields, it's not one of those things.
Any thoughts?

 

[liam burbidge]

I had a similar rattle mine was were the manifold meets down pipe(middle of car) there's a exhaust clamp that looks like a sleeve mine was lifting abit so added a new one. Possible gear box mount causeing engine to rock a little more

 

[DuD3]

Is it a standard exhaust and is it blowing at all? If so Check your centre silencer just had to have mine cut out as the welds had gone on the box and was rattling on the pipe.

 

[Antti O]

Those sounds are strange. My car gives rattle when i press clutch down in high revs.

 

[RossWoods93]

Is it a standard exhaust and is it blowing at all? If so Check your centre silencer just had to have mine cut out as the welds had gone on the box and was rattling on the pipe.

I second this! Had the exact same noise mentioned here, and the weld was completely gone!

Rewelded, problem solved.

 

[Antti O]

I have to check exhaust today, i will report if i have same problem.

 

[DuD3]

I second this! Had the exact same noise mentioned here, and the weld was completely gone!

Rewelded, problem solved.

View attachment 115747View attachment 115748

I just had i straight through pipe welded in yet to find out from neighbors if they prefer the tractor noises or rally car ones.