Hi all. I got a new clutch put in last Friday, and within 50
miles of picking it up, while idling at rest, I suddenly noticed
a steam cloud coming from behind, then out the window I
could see a big stream of coolant spreading out from my
motor area. No warning lights or temp issue because it happened
just then, all at once and I shut it off immediately. I got it towed
to the nearest Porsche dealership to be locked away safely for
the night...
I'm calling the shop that did the clutch (another official Porsche
shop) today...

Joe

 

Ahhh...that sux, Joe! I hope it gets taken care of quickly.

 

maybe a ruptured hose? normally a clutch job wouldn't cause such leak unless they somehow messed up the hose. the hose runs thru the middle of the car. so it's possible.

 

They have to disconnect the coolant lines to drop the tranny. My guess is they didn't get one back on tightly....

 

Lucky you caught it quick and didn't damage the engine.

 

I have removed my tranny a few times and have never had to remove any coolant lines? My guess is it was just an old hose that failed. Or one of the glued in coolant fittings came out from the block.

 

The shop did replace all the coolant when they did the clutch, so they
had worked on some fittings...

 

I seem to remember that the heater lines loop over from the driver's side into the metal z shaped tubes that go under the middle of the trans. I think you have to unclip and remove them up by the shift cables....

 

I asked Kevin of UMW and he said there are two coolant hoses connecting the
motor to the hard coolant lines going to the front of the car, one on each
side, and there is an O-ring+circlip on each end of each line, and 3 of the 4 have
the same size circlip, but the engine side of the righthand hose is smaller, and
if they get mixed up, that hose will come off.
He also says that while we're down there, the aluminum tangs on the hose
ends are too stressed, and Porsche upgraded these parts for the 997tt, so it's
cheap insurance ~$120 to replace these with the newer parts...
I'm still waiting to talk to the shop that is going to do the initial diagnosis...
Joe

 

joe thanks for telling us about the upgrade ... what's the parts number for the 997tt coolant hose?

 

Dunno yet, but I'll post them when I find out....

 

I had the SAME issue two Summers ago. Apparently Porsche originally used an adhesive that connected the hoses to the hard pipe, which was what failed in my case. You may want to inspect your MAF after the repair is complete in case there is any coolant residue.

 

We have seen this a number of times... I think JohnD and 911-007 have both had this happen recently.

 

I've had a similar problem, although mine was in the front.

https://www.6speedonline.com/forums/...e-problem.html

 

I saw that failure personally (actually, the pipe that the hose fits onto is glued into the junction box) in a friend of mine's 996tt on the track during a DE session last year at the end of the straight into a blind apex (high speed turn ~ 140+ MPH).

Unfortunately, a trailing GT2 caught the puddle and hit both walls. Driver and Instructor in the GT2 walked away, shaken and bruised, but not hurt.

I despise those ****ty fittings ...