997 C4S - very squeaky timing belt

[Arenki]

afternoon gentlemen,

started my C4S us normal today, and immediately noticed a very squeaky timing belt of some form. couldn't locate it but it stopped once the car had warmed up. Never heard this before - belt needs changing or something more sinister en-route?

regards

[Paddymcc]

Doesnt the car run timing chains rather than a timing belt?

[Arenki]

you could well be right! i don't know!

[anonymous-user]

Sounds like the fan belt to me.

Ah , well, it sounds like fan belt issues on a normal car , I've no idea how the belts are operated on a 997.

So, ignore this post and wait until someone who knows what they are talking about comes along.....

[Popolou]

Could be a pulley. If so, I think the trick is to give a quick squirt of wd40 behind each one and see if the noise disappears to identify the culprit.

[stup]

Noise will be more than likely from the drive belt which is situated in front of/below the airbox.
Pretty straight forward to replace and not expensive if that is where the noise is from,check pulleys for wear/noise once belt removed.

[tuscman]

Agree most likely a drive belt that needs adjustment or replacing. I just had mine replaced on a 996 C4S during a major service. You have a timing chain rather than a belt and if this were slipping (highly unlikely) it would most likely be terminal very quickly !

[stup]

Spring loaded belt tensioner so can't be adjusted.
Replace and all should be fine if noise is from the location I described above on previous post