03-06-2021, 10:49 AM
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#1
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,617
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Quote:
Originally Posted by CharlesE
Also the oil that came out looked fine. The dipstick looked normal. But I think my AOS might be going bad.
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If your AOS was going bad, the sump vacuum level would be too high, which would help get rid of the moisture. Your problem lies elsewhere.
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“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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03-06-2021, 11:37 AM
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#2
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,984
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Quote:
Originally Posted by JFP in PA
If your AOS was going bad, the sump vacuum level would be too high, which would help get rid of the moisture. Your problem lies elsewhere.
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Not enough driving, or perhaps too many short trips..?
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03-06-2021, 05:04 PM
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#3
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Registered User
Join Date: Feb 2017
Location: NorCal
Posts: 171
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Quote:
Originally Posted by Gilles
Not enough driving, or perhaps too many short trips..?
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I'm in this camp
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2001 Boxster 986 (base) #414
-PCA GGR: Class Champion AX12 '18, '19, '20; CC06 '21; CC05 '22; PAX 5th '19, 3rd '20, '21, & '22
-PCA Zone 7: Class Champion P14 '18, '19; P02 '20; P-03 '22; PAX Champion '20 & '21
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03-06-2021, 06:14 PM
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#4
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,617
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Quote:
Originally Posted by Gilles
Not enough driving, or perhaps too many short trips..?
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Possibly, but the water could be coming from an internal source as well.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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03-06-2021, 06:28 PM
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#5
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Registered User
Join Date: Mar 2016
Location: Sicklerville, NJ
Posts: 69
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Quote:
Originally Posted by JFP in PA
Possibly, but the water could be coming from an internal source as well.
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I drive it alot and i dont drive slow so i know its gets warm enough. I did notice a really slow coolant leak but I dont know where its coming from I just see the level drop every month or so. Could this be a factor?
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03-06-2021, 08:30 PM
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#6
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Registered User
Join Date: Jul 2010
Location: California
Posts: 1,859
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Quote:
Originally Posted by CharlesE
I drive it alot and i dont drive slow so i know its gets warm enough. I did notice a really slow coolant leak but I dont know where its coming from I just see the level drop every month or so. Could this be a factor?
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First thing I thought of when I saw the photo is a coolant leak into the oil system. The residue under the oil cap is not normal. Hopefully it is something simple like the Oil Cooler.
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Jäger
300K Mile Club
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03-06-2021, 09:53 PM
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#7
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Registered User
Join Date: Jul 2019
Location: Finland
Posts: 345
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Depends also of the climate you're at.
We used to have 'normal' 20-30 years ago that if you do not get the car hot for a long time at least couple of times a week (if driven daily) during winter when the temps do hover between 30-0 F, then the oil cap looked just like on the OP's picture. Summer was never a problem.
Also, the coffee color stuff is so small amount, that makes me to believe the current colder weather could be the culprint of this - or very recently started small mix of water to oil.
__________________
Boxster 2.7 2001 Manual
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03-08-2021, 06:02 AM
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#8
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Registered User
Join Date: Mar 2016
Location: Sicklerville, NJ
Posts: 69
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Quote:
Originally Posted by pilot4fn
Depends also of the climate you're at.
We used to have 'normal' 20-30 years ago that if you do not get the car hot for a long time at least couple of times a week (if driven daily) during winter when the temps do hover between 30-0 F, then the oil cap looked just like on the OP's picture. Summer was never a problem.
Also, the coffee color stuff is so small amount, that makes me to believe the current colder weather could be the culprint of this - or very recently started small mix of water to oil.
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This sounds like it could be whats happening. I did let the car sit for a week so I dont daily drive it. I'm not worried about it but I'll try to find the coolant leak to see if its a problem. Thanks!
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03-07-2021, 07:22 AM
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#9
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Registered User
Join Date: Aug 2018
Location: Woodland Wa
Posts: 1,309
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Quote:
Originally Posted by CharlesE
I drive it alot and i dont drive slow so i know its gets warm enough. I did notice a really slow coolant leak but I dont know where its coming from I just see the level drop every month or so. Could this be a factor?
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First thing to do is pressure test the cooling system and see if you can determine why your coolant level is dropping and where it is going. Once you know the answer to where the coolant is going you will know if you need to be worried about the moisture on the oil filler cap or not.
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03-08-2021, 04:23 PM
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#10
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,984
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Quote:
Originally Posted by JFP in PA
Possibly, but the water could be coming from an internal source as well.
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Bad O-rings on the heat exchanger could be the cause for this issue as well..?
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Last edited by Gilles; 03-08-2021 at 05:22 PM.
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03-08-2021, 04:24 PM
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#11
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Registered User
Join Date: Oct 2014
Location: California Central Coast
Posts: 1,476
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[QUOTE=Gilles;631655]Bad O-rings on the he heat exchanger could be a cause then, right?
.[/QUOTE
NO. This is physically not possible. 4 O-rings that contain pressures greater than atmospheric (oil at 15-50 psi and coolant at ~18 psi), cannot leak into each other separated by 2+ inches through the atmosphere @0 psi (14 psia) unless the O rings were gone and the leak was so bad they drained into the other from residual on the engine. But then I think the fluid on the ground would be hard to not notice.
Edit If I ruined a long standing joke like foglights then I apologize.
Last edited by 911monty; 03-08-2021 at 05:32 PM.
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03-09-2021, 08:21 PM
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#12
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Registered User
Join Date: Aug 2017
Location: Tucson,az
Posts: 762
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hopefully you have some oil that you could send out to get analyzed might help find the answer..
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03-17-2021, 07:37 AM
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#13
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Registered User
Join Date: Sep 2010
Location: Orlando/NY
Posts: 143
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Could be a cracked cylinder head..I would get it checked out before it gets worst.
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