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YOUR RESEARCHNew to Porsche, 911 C4 mixing oil in water
Leading reported evidence
Clean water
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No successful repair reported for this finding.
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1
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Suggestion
Or if a minor case you may get away with doing several flushes with hot water and shout detergent....followed my several flushes with clean water.
Leading evidence: 'Clean water' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean water' (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
You can start at the oil cooler to see if the bladder is shot (there is youtube on a DIY) but I think you have a cracked head and dependent on how severe it is you may need to replace the water hoses.
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Suggestion
You can start at the oil cooler to see if the bladder is shot (there is youtube on a DIY) but I think you have a cracked head and dependent on how severe it is you may need to replace the water hoses.
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18 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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So I have traded another car for a dead Porsche 911 Carrera 4 2001. After reading about all the failures I tried to find a new engine but they were very expensive. I figure I should at least find my problem before spending that amount of money.
I figured I should try to remove the heat exchanger and see if it is broken. Any advice regarding this procedure?
Renntech will probably have some guidance on that if you become a paid member. They seem to be a great resource. Otherwise, consider getting the Bently Manual and the 101 Projects For Your Porsche books.
I mention those because it sounds like you may be doing a lot of work on your own and they're good to have around. I don't have any experience pulling the heat exchanger on the 996, so I can't help more.
Thanks, I'll look at the Renntech place and look for service manuals.
The car is silver with black and orange vinyl. Not something I would have done but it'll stay on to protect the paint while I work on it
The previous owner said he took it out of storage and then let his son borrow it. The car overheated and they found oil in the water. When I got the car the water is like caramel, light brown and seem to have been "whipped" into the water. Much like many of the BMWs I've had with cracked heads but that was water in the oil (same mixture)
The way I figure, the error must be somewhere where oil pressure is always higher than water pressure. No water is going into the oil system but a lot of oil is moving into the coolant system.
from what I have read the cooling system doesn't react well to oil coolant intermix, don't quote me but you might want to flush out the system before the mix degrades the hoses. AOS (air oil separator) may be something else to read up on.
Interesting colour combo, works with those wheels
You can start at the oil cooler to see if the bladder is shot (there is youtube on a DIY) but I think you have a cracked head and dependent on how severe it is you may need to replace the water hoses. Or if a minor case you may get away with doing several flushes with hot water and shout detergent....followed my several flushes with clean water. Either way I would get the car to a good indy but get some pricing first.
Thank you for the answers. I'll probably remove the engine to get access to everything. From what I have read I should upgrade the IMS bearing while I'm at it. Maybe I'll find some small leaks I can take care of as well
I keep these hosted for members to download. Links are:
http://www.adrive.com/public/zJ6p56/996.serv.man.99.zip
http://www.adrive.com/public/9uwGxQ/Porsche996Man.zip
Great, thanks for the links to service manuals. I will download tommorrow when I'm on the computer.
I need to read into what the AOS does. Also tried to look at what I need for the IMS upgrade. Is the LN kit with install kit the best choice or are there several alternatives out there? Different solutions?
One of the symptoms of a blown head gasket is a chocolate or creamy colored oil. Also a loss in the coolant level and steamy looking exhaust fumes. Sounds more like a faulty AOS to me though. If you are removing the engine you will find your problem no doubt.
Exhaust fumes seemed normal to me. I haven't been able to find a good explanation how the AOS works. It separates the oil from the crankcase ventilation but I would like to understand what the diaphragm does and how it is heated by coolant
Head gaskets do not blow on the m96. More than likely you have a cracked head. Depending where the crack is there are shops online that can repair them.
I'll inspect the heads a soon as the engine is out of the car. Not sure when I'll get the time. At least I drained the engine from fluids today. The water looks tasty
Yes, the
101 projects book
will definitely come in handy while you prepare for the fixes that need to done. Otherwise,
these tech articles here
should be helpful. There's a very detailed one about the IMS bearing as well.
-Luccia
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