Rev limiter kinda noise (but not)

[boreddead]

Hi,
Have noticed this within the last few months, but only just got round to reporting.

When I am in 2nd gear or 1st gear and i floor the car around 4-5k revs I get a noise as if i was hitting the rev counter, i am not hitting it though.

Tonight on the way home, i watched the counter as I floored it, as i initially thought the tyres were loosing grip and/or TCS was kicking in. This is not the case though.

I do not get this in any other gear but 1st/2nd.

Any ideas? This has only started happening since I had the cambelt done.

Thanks for any help

Forgot to mention (172 Sport)

 

[caister]

What car mate? It could be the exhaust manifold hitting the subframe

 

[boreddead]

Ah sorry!

172 sport

 

[caister]

As above then it could be the exhaust hitting the subframe. Does it only do it when you floor it or does it do it when you smoothly accelerate to 4-5k. Is it a PH1 or PH2 172?

 

[boreddead]

PH2, only does it when i floor it. smoothly it doesn't do it.

 

[caister]

Yeah sounds like one of the engine mounts is worn which causes the manifold to bounce off the subframe.

 

[caister]

http://www.cliosport.net/forum//showthread.php?t=349543

 

[boreddead]

ahh ok thanks, i'll go see if i can take a look.

I guess that would make some sense.
Is it a big job to replace if they are worn?

 

[boreddead]

Ok just had the garage give the engine mounts a check over as I was getting an MOT done anyway. They say the engine mounts are not worn.

Any idea what else it could be?