996: How can I replace the engine oil heat exchanger?
01-14-2012, 05:47 PM
#1
Track Day
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996: How can I replace the engine oil heat exchanger?
Hello:
My heat exchanger seems to have gone (oil mixing with water) and need to access the oil heat exchanger.
Do I have to drop the engine, or can I work my way to it? (removing the manifold, etc??)
Has anyone here done this before?
Thank you
My heat exchanger seems to have gone (oil mixing with water) and need to access the oil heat exchanger.
Do I have to drop the engine, or can I work my way to it? (removing the manifold, etc??)
Has anyone here done this before?
Thank you
01-14-2012, 08:36 PM
#2
Three Wheelin'
Yes certainly people have done it.
Yes you can get to it without removing the engine, and by removing the right hand side intake manifold, or at the very least the a/c compressor.
Although the oil cooler can be a source of intermix, cracked heads seem to be a more common reason.
If you remove the oil cooler, have it pressure tested to be certain it is the cause for intermix.
In addition, the intermix in your system MUST be completely cleaned out, otherwise it will eat away and destroy at the miles of hoses in the car.
Yes you can get to it without removing the engine, and by removing the right hand side intake manifold, or at the very least the a/c compressor.
Although the oil cooler can be a source of intermix, cracked heads seem to be a more common reason.
If you remove the oil cooler, have it pressure tested to be certain it is the cause for intermix.
In addition, the intermix in your system MUST be completely cleaned out, otherwise it will eat away and destroy at the miles of hoses in the car.
01-16-2012, 04:19 PM
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Track Day
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Will do, I will take some pictures once I get to the shop. Thanks by the way for the advice.
I already had the oil cooler removed -via manifold- and pressure tested...I was lucky and it was the oil cooler, it was very corroded.
I already had the oil cooler removed -via manifold- and pressure tested...I was lucky and it was the oil cooler, it was very corroded.
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06-04-2015, 06:22 PM
#8
Cruisin'
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I need to remove the heat exchanger and will try to hijack this thread. Do you mean that I need to remove the transmission in order to access the center plenum and ultimately the heat exchanger?
06-04-2015, 07:24 PM
#9
If your going to do other things as well your much better off to just drop the engine. It isn't hard at all and makes it so much easier to replace all the "while your in there" issues.
06-04-2015, 07:50 PM
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Cruisin'
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I'm not planning on doing anything apart from fixing it but I'm not sure what needs fixing at this point. Chances are I'll need to rebuild the engine so you're probably right.
Although it is tempting to just remove the heat exchanger and hope that is the cause of oil in the water.
What usually causes this in the 911?
Although it is tempting to just remove the heat exchanger and hope that is the cause of oil in the water.
What usually causes this in the 911?
06-05-2015, 12:45 AM
#11
Rennlist Member
I'm not planning on doing anything apart from fixing it but I'm not sure what needs fixing at this point. Chances are I'll need to rebuild the engine so you're probably right.
Although it is tempting to just remove the heat exchanger and hope that is the cause of oil in the water.
What usually causes this in the 911?
Although it is tempting to just remove the heat exchanger and hope that is the cause of oil in the water.
What usually causes this in the 911?
"cracked heads seem to be a more common reason."
