Ack, what is the "time chain" problem you guys are referring to? Is the 996 prone to time chain issues?

 

i don't know of one. again, it reminded me of a soundalike timing chain issue, from porsche's of the past. tensioners failed or some such. not sure about them in m96 engines. as i understand it, they do have a timing chain, but have not heard of them failing.

 

Hey, let me give you some great free advice. You are in Foster City. Take your car to Carlson Porsche and have CHRISTIAN listen to your motor. These guys listening on ytube ...................
.its crazy I tell you
BTW you owe me a talll beer, Mike

 

The Mezger engine is..

 

what, you never played "name that bad engine sound" on the internet before? get with it man! lol

 

I have a prominent IMS rattle in my car but as far as I know, it's a pretty well known issue with the 996tt. It's annoying but normal from what everyone says.

 

Thanks Dragonman. Good to know, I keep my fingers (and wallet) crossed!

 

What does it sound like when the revs increase.In other words does it increase with revs?

 

my biggest concern would be the sudden(?) onset of this condition. even on vid, it sounds.. well... not "normal" ims chatter did you a/b your vid with the other one?

 

Seems NOT to increase with rev's . At least , listening to the video sound. that's what Ia m thinking..

 

Definitely similar I would say..
Now I am wondering it that could be clutch chatter instead. ie that should disappear when pressing the clutch then . Hm. will check and report later tonight

 

after listening a second time sounds to eratic to be inside the motor.Last 996 i heard that sounded like that had a loose flywheel/broken pressure plate.Get it to a Porsche tech .

 

could be right. i would defer to you and joe here who is capable of wheelies in his turbo. better a clutch than your ims disintegrating, i would think..and yeah.. i'm not sure i would drive it either.. take it in monday. gl w it!

 

My timing chain broke 2 years ago at 45000. Did not sound like that before it broke.
That sounds like IMS noise.
One thing I have noticed is that the IMS noise does not seam to correlate with failure.
I would have it looked but it is probably fine.

Using mobile 1 5w40 TDT or Delvac will make it quieter.

 

Anything changed prior to the sound happening?