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Discussion summary
YOUR RESEARCH90,000 miles, and I was told this would not happen!
Leading reported evidence
Clean cooling system
Suggestion or failed attempt
No successful repair reported for this finding.
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1
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Suggestion
Another frugal tip of getting through the intermix economically is to drain and clean the cooling system and use a fe
90,000 miles, and I was told this would not happen!
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Leading evidence: 'Clean cooling system' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean cooling system' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
Thank you for sharing a positive 996 repair story!
90,000 miles, and I was told this would not happen!
Replace ngine was required
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Suggestion · Original poster
I even spoke to Jake Ruby, and at that time he also agreed that replacing the ngine was required.
90,000 miles, and I was told this would not happen!
Run strong
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90,000 miles, and I was told this would not happen!
Use fe
Suggestion or failed attempt
No successful repair reported for this finding.
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Reported fixes
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion
Another frugal tip of getting through the intermix economically is to drain and clean the cooling system and use a fe
90,000 miles, and I was told this would not happen!
Coverage and how to read this overview
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
30 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
Tried to find a used head, but all I found were also cracked, and in the same spot, looked at a new head, which was $3,000, and then found a machine shop in CA that had fixed many of the heads.
https://rennlist.com/forums/attachme...1&d=1502980821
On a road trip yesterday my odometer turned over 90,000 miles. While many have far more miles this was a big yardstick for me. Some of you many remember that in 2008 at about 48,000 mile my engine had a major intermix with the coolant like vanilla pudding and the oil like a chocolate shake. At the time th dealer where I bought the car and my indie all said the only fix was a new/remanufactured engine. I even spoke to Jake Ruby, and at that time he also agreed that replacing the ngine was required. All said tha with the coolant I the oil the bearings would be damaged. Etc. And the cost of a remanufactured engine back then was $8,000 to $10,000 from Porsche.
Changed the oil and coolant and parked the car until the next spring when I dropped the engine in my driveway and started to take the engine apart. Soon found a crack in the 1-3 cylinder head. At that time most thought you could not fix these heads. Tried to find a used head, but all I found were also cracked, and in the same spot, looked at a new head, which was $3,000, and then found a machine shop in CA that had fixed many of the heads. $500 plus shipping to fix the crack and do a valve job.
Put it back together, did some other work and parts replacement and put it back on the road. So now 90,000 miles, with the same bearings, hoses, etc. and it is running fine! But I do have an oil leak and need to reseal one of the cam covers, which is a real pain, so one of these days.
In any case I am happy and celebrating 90,000 and looking forward to the next 90,000!😄
I got mi e yeas ago on Amazon or eBay, I forget which. Simple plastic, they came with glue, but do yourself a favor and use just tabs of clear silicone caulk, will will hold and is easy to clean up. If you get the glue on the instrument faces it never comes off. Look on eBay now, search Porsche 996 instrument trim rings and there are sets for sale for less than $40.
LOVE this story. So many many people on this forum fixing things that are not broken and worrying day and night about oil, smoke, rattles, mice, ghosts, goats, and Game of Thrones . It's a machine, that's it. It can break and it can be repaired. Not every mechanical problem requires a complete engine replacement (some do). And it is always nice to see proof of that fact.
Agree. I've seen so many machines "in their last leg" that just continue hopping around and won't die that I no longer try to anticipate the death of a machine unless it's obvious (no oil pressure). Of course, there's also a phrase "nothing is so obvious that it's obvious."
Kind of makes you wonder when someone who looks young and healthy just suddenly dies, versus an old fart who's in their 80's looks like they could croak at any minute, and then just continues on for another decade or two.
Lastly, the reason why anything is expensive, in the end, comes down to time. Someone could in fact build their own parts if they had enough time. For those with more time than money, like myself, having a Porsche can be affordable.
The ethylene glycol / bearing damage theory is well known and has been around for decades. The glycol turns acidic and attacks the lead/tin outer thin layer of the bearing turning it dark in color, and pitting. Porsche m96 engines do NOT used lead in the outer layer, they are bimetal material with steel backing and an aluminum hard surface. The m96 crankshaft is hardcoated (nitrated) and requires a hard bearing shell. This bimetal material is more reluctant to acid damage than the lead/tin layer of the trimetal bearings. Although the acid can cause pitting of the crankshaft its self, they key is to get rid of the oil quickly as was done in the above example. Another frugal tip of getting through the intermix economically is to drain and clean the cooling system and use a fe
w gallons of brake cleaner to absorb the oil that will have soaked into the rubber hoses. I bought a car that had intermix about 7 years ago and after 70k miles and 7 years the hoses are still pliable, but not spongy or brittle. Congradulations of a successful and frugal repair !!
Pictured is a rod bearing from a friend of mines 1999 996 3.4 that had suffered a intermix from a cracked head, he also had scoring on #6 cylinder and opted for a 3.8 rebuild, bearings looked ok.
Hurray and congratulations on the mile marker with the motor. That is awesome and refreshing to hear hope it continues going strong and thank you for your multiple contributions. Which have help me in various occasions, now keep driving the hell out of that beast and rolling more miles on the odometer.
