AC System Removal
 

Ive been removing components of my a/c system. Ive take the compressor out, the accumalator out and the hose between the two out. Since i've taken those out my car now makes a tinny rattling sound on start up and idle. It still runs fine though(I can hit 110mph easy). Any clues as to what is up?

RE: AC System Removal
 

Check the heat sheild for the exhaust.
And look for anything else that could possibely be loose.

RE: AC System Removal
 

Im dumb. sorry. where and what is the heat shield?

RE: AC System Removal
 

Hi Mr Racer,

The Heat Shield is a two-piece plate surrounding the exhaust manifold on the B230 engines. It ducts warm air to the air box through a silver/serrated hose that runs along the front of the engine bay.

If you remove the (12 or 13? I forget) mm bolts you will see that the heat and vibration will have cracked the metal. Then the vibration of the engine will allow a resonance.

I have found that the silver metal hose can also rattle in it's clips.

If you are actually racing the car, you don't need the ducting and hose!



Cheers

RE: AC System Removal
 

There is also another one on the downpipe.The pipe after the manifold.