Engine block leak down test

[Dave2001S]

Yep, you guessed it, mixing oil in the coolant. The chocolate milkshake. First time Porsche owner here too. My childhood dream is starting out on rough terms. I'm hoping its limited to a blown head gasket, but still its a nerve-wracking and wallet-lightening experience. I'm having the IMS replaced and RMS at same time.

[JFP in PA]

Originally Posted by Dave2001S

Yep, you guessed it, mixing oil in the coolant. The chocolate milkshake. First time Porsche owner here too. My childhood dream is starting out on rough terms. I'm hoping its limited to a blown head gasket, but still its a nerve-wracking and wallet-lightening experience. I'm having the IMS replaced and RMS at same time.

Experience has shown that these engines do not blow head gaskets, but they do crack heads. A second, and common source of intermix is a failed oil cooler, which is relatively cheap and very easy to replace. They can also be pulled and pressure tested outside the car easily.

[Jake Raby]

Its an '01- it has a cracked head. I only have a dozen 00-01 engines underway at this present that had intermix from this.

You probably lost the water pump first, you just didn't know it and you didn't know that it would lead to this type of symptomless failure.

We've had one single heat exchanger fail and lead to this. We have NEVER seen a head gasket blow. We just saved another car with intermix this week.

Good thing you are changing the IMSB, as 1% of coolant intrusion into the IMSB equates to an increase in bearing wear of 83%. Lots of people don't realize this and then after an intermix experience they lose an IMSB shortly thereafter.

Of all the failures out there, this one is taking out more engines than anything else at the present. See a ton of pics of engines we have saved in our photo albums at www.facebook.com/fixabrokensix

[Trey T]

What heat exchanger - radiator, engine oil cooler, or tranny oil cooler?

How did you come up with the number, percent coolant intrusion vs bearing wear percentage?

Originally Posted by Jake Raby

...

We've had one single heat exchanger fail and lead to this. We have NEVER seen a head gasket blow. We just saved another car with intermix this week.

Good thing you are changing the IMSB, as 1% of coolant intrusion into the IMSB equates to an increase in bearing wear of 83%. Lots of people don't realize this and then after an intermix experience they lose an IMSB shortly thereafter.
...]

[Dave2001S]

Thanks, I had the oil cooler pressure tested and it showed tight (according to my mechanic). Had the seals replaced anyway. Found out a few hours ago one of the head gaskets is blown in several places. Should know by Tuesday if either of the heads are cracked. Please say a little prayer for my Boxster, feel like its on life support.

[Jake Raby]

Originally Posted by Trey T

How did you come up with the number, percent coolant intrusion vs bearing wear percentage?

Directly from our bearing Engineer and the manufacturers of the bearings as well.

[Dave2001S]

Update, one of 2 heads confirmed cracked. Gaskets blown as well. Any suggestions as to where I can find a cylinder head for a 2001 S? Also looks like the clutch flywheel is thrashed. Will likely overhaul transmission as well. I'm in a fetal position. Kids' college education vs Porsche.

[BYprodriver]

Originally Posted by Dave2001S

Update, one of 2 heads confirmed cracked. Gaskets blown as well. Any suggestions as to where I can find a cylinder head for a 2001 S? Also looks like the clutch flywheel is thrashed. Will likely overhaul transmission as well. I'm in a fetal position. Kids' college education vs Porsche.

Dave where in SoCA are you? & what shop has your car?