Metallic rattle sound from engine

Recently, I have been getting this strange metallic rattle sound from engine. It’s not constant be come on frequently, all I can describe it like when you have a lawnmower with a roller and you drag it over stones, you get a high pitched sound.
It doesn't get louder with engine revs.
I’ll try to load up a video, but engine seems to be running ok. I had my heat shield underneath removed a while ago, so wondering if it could be another rattly shield somewhere.
 
I had this, turned out a heat shield over the exhaust on the bottom had dropped off but left a small circular bracket which was hitting the exhaust.
 
Yea its the cover they become loose and rattle I seen someone's guide on a k12 and they put an exhaust clamp over the part to prevent movement.

Edit
Had a look at mine today. Didn't notice anything that would move around have a clamp spare just in case tho that could possibly fit if needed.
 
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Many thanks for the direction, today I have discovered where it is coming from definitely from this shield (behind the Rad), as the cover broken away from the bolt and can flex.
I will try to clamp it or Jubilee clip it somehow.
 

John_D

Club Member
Radio Code Guru
Yea its the cover they become loose and rattle I seen someone's guide on a k12 and they put an exhaust clamp over the part to prevent movement.

Edit
Had a look at mine today. Didn't notice anything that would move around have a clamp spare just in case tho that could possibly fit if needed.
Had to do that with mine to stop the rattle.....
 
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Cheers, many thanks for the replies I'll see if can get a jubilee clip for it, have to measure around the circumference. I don;t have one that large!
BTW what is that unit out of interest, the shield is covering?
 

John_D

Club Member
Radio Code Guru
Cheers, many thanks for the replies I'll see if can get a jubilee clip for it, have to measure around the circumference. I don;t have one that large!
BTW what is that unit out of interest, the shield is covering?
I used a 'U' bolt exhaust clamp, found that a jubilee clip got far to hot there to last very long.....
 

John_D

Club Member
Radio Code Guru
Its shielding the cat. You can also remove the heat shield. Plenty run without it.
On the K12 it shields the down pipe (and is actually part of it, being welded on), immediately after the CAT, the CAT, which is connected directly to the exhaust manifold and isn't under the car, is shielded by a simple plate shield at the front of the engine
 
On the K12 it shields the down pipe (and is actually part of it, being welded on), immediately after the CAT, the CAT, which is connected directly to the exhaust manifold and isn't under the car, is shielded by a simple plate shield at the front of the engine
IT looks like a k11 to me And Its in the k11 section.
 
Interesting, my 94 lacked that HS, I had them all removed though after the last MOT the ones hanging on was making a proper racket.
 
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Interesting, my 94 lacked that HS, I had them all removed though after the last MOT the ones hanging on was making a proper racket.
I had to have the one underneath removed a while ago as that was making a right racket. I have ordered a Jubilee clip for this and see how I go. I don't want to remove it unless really have too.
 
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