Alternator pulley mate, bearings work lose very easily, mine does it and needs changing. Nothing major but obv something that needs to be looked at

there is one bolted to the manifold, i took mine off months and months ago but getting a viper so heat build p under the bonnet aint really a concern, its the heat shield welded to the down pipes that cause the problem mine does it sounds terrible, gonna rip it off when the engine re-build is complete

do you need the heatshield right at the front of your engine bay? cos mine is rattlin and could easily be pulled off.

Well I spent about 10 minutes listening last night and it seemed to be coming from either deep or underneath the engine...

Ive got it booked into Blakes for tuesday night - my gf works there so its v handy :)

Ive just had my kit fitted though so I am a bit warey about giving it to them.

could be the bearings on one of the pulleys mate

No cos they wouldnt replace the downpipes jus connect to them, you need an after market manifold, get a janspeed one

If I had a full custom system fitted would they fix the problem then?

i used to have this,
was the exhaust manifold (downpipe) heatshield thingybobby!

just unbolted, straighten it out a bit, reattached to really tight, and never rattled again!

but then the exhaust pipe began to rattle!!

Ive just checked & it actually does when I just rev it! Thought it was only when pulling off but its not.

Its get louder when you let off the revs...

I have standard air filter at the moment but i'll check it anyway.

So if my downpipe heatshield is kaput how much will a new one cost?

thanks for the help

Don't get rid of the downpipe heatshield!! i did and since i did i went through a downpipe soooo much quicker than before

Check your air filter if you have an after market one and check that it fits tight and does not have a chance to rattle off any metal. Mine used to rattle off bodywork when i pulled away from standstill

So are these heatshields not needed then?? Can I just cut them off and have none?

I must have to replace them with another one...

nah the heat shields are bolted on, its just the one on the down pipes, get the hacksaw out and cut it off, also check the heat shield on the manifold

Ok, thanks for the advise, im fairly new to this so would you reccomend doing it myself or is it a job for a pro?

there are a few heat shields, they are above the exhaust silencers, the main one that is a bugger is the down pipes, they are wrapped in a metal heat shield and its welded on, when this rusts loose metal and that gets between the shield and downpipes and rattles, you have to smash the thing off

Thanks, ill give it a check when I get home :)

exhaust heat shield

Ive only had this corsa a couple of months but ever since ive had it there's been a rattle coming form the engine mainly when I pull off from standing.

Ive just had my bodykit fitted so this rattle is really letting the side down :D

Is there anything thats proan to working loose in the engine?

The car drives fine so I wouldnt imagine its anything major.

Any ideas would be great.