Carrera Mike

Front of the car is on jack right now.. and YES I could rotate the springs by hand. My springs though are H&Rs.

My suggestion for you so the spring dont jump when car gets unloaded is to safety wire them on the bottom hat.

997_rich

thanks for getting back so quickly!

I was considering safety wire myself... I was also thinking about putting 2mm rubbery spring tray liner in the bottom. I might have some kicking around. I've had them on every BMW I've touched the struts on.

Or I could just drive the car on perfectly flat roads all time.

Thanks

997_rich

update on this: I safety wired all of the springs on the lowest coil. Still getting the noise.

Digging around further I've found that it might be the hood loop bouncing around in the hood latch. I tried adjusting the rubber hood bumpers but the center of the hood can flex a bit allowing the hood catch loop to bounce around in the hood loop. It's surprising how loud this ~2mm of slop can be.

I put a piece of foam under the hood right next to the latch to act like a spring and it seems to have reduced the noise. it keeps the load on the latch so the hood catch loop can't jump around in the hood latch. The real test will be on pothole roads.

twinsnail

I know, its 2013...a bit of a late reply
My 2007 997 tt has similar, (as did my 996tt) I have Ohlins coil-overs to ad to the mix of variables
Did u ever figure this out?
thx

997_rich

Mine turned out to be a antiroll bar end link. Even when the car was in the air I could jank hard on the antiroll bar and the links and there was no play. But I pro-actively replaced both end links on a hunch and it fixed it. there was very little play in one but it was enough to make a lot of clunking even in a parking lot.