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Do these oil cooler vents really work?

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Old 09-01-2009, 10:22 PM
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fletcher0780
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Originally Posted by TroyN
Not to ask a stupid question but are you sure it's really at 240? That's really hot for street driving.
My gauge says just below 250*

Originally Posted by A930Rocket
Yes, the fan is on the oil cooler located in front of the right front wheel. 250* is WAY too hot. You are cooking your oil. The fan should come on at about 230*, which is hot for me. Mine runs about 200-210* around town. 212* is actually good to burn off any condensation.

Do you have a stock temp gauge or a numerical gauge? On a stock guage, the 9 o'clock position is 212*.
my gauge is numerical and lists the following temps 120 180 210 250 300. 210* is at about 9 o'clock. My car runs at a good temp while driving, but climbs in traffic or while at idle to 240*. I'm thinking I have a bad fuse, relay, fan thermostat, or fan.

Thanks for the help.
Old 09-01-2009, 11:28 PM
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A930Rocket
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You can unplug the fan and apply power to it to see if it's good. Then you'll need to check the other items mentioned. A new fan is crazy money ($350?) which is why I mentioned a fan from Jegs or Summit.

You may also want to check you oil thermostat in the right rear wheel well. If it's not opening all the way, it won't cool very well. I think DonE posted here (or Pelican) recently about it.

http://forums.pelicanparts.com/showthread.php?t=491680
Old 09-02-2009, 04:47 PM
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Mark Houghton
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Originally Posted by A930Rocket
Yes, the fan is on the oil cooler located in front of the right front wheel. 250* is WAY too hot. You are cooking your oil. The fan should come on at about 230*, which is hot for me. Mine runs about 200-210* around town. 212* is actually good to burn off any condensation.

Do you have a stock temp gauge or a numerical gauge? On a stock guage, the 9 o'clock position is 212*.
Interesting. On my stock gauge, I've never seen it at the 9:00 position...about 8:00-8:30 is about as high as it's gotten, and that on a hot summer day just cruising down the freeway. And I don't believe I've ever heard the fan running either (probably not hot enough for the fan thermostat to kick in). Guess I'm just not driving aggressive enough.

I wonder if my oil thermostat is stuck wide open, or gauge calibration issues. Guess I'll drop a thermocouple down into the oil tank next time she's nice and warm as see what the actual temp is.
Old 09-02-2009, 07:10 PM
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fletcher0780
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My fan actually came on today after I played with the connections. I'm guessing they were a bit oxidized from sitting for so long. I got stuck in construction and the highest I saw the temp go was about 230-240. I think I'd like to see the fan come on around 220, instead of 235 though.
Old 09-02-2009, 08:38 PM
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Dino oil begins to break down at 300 degrees F. Synthetic has a higher limit than that.
Just because Bruce Anderson says 240 is "too damn hot" doesn't mean that it's harming the engine.
Old 09-02-2009, 08:51 PM
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Originally Posted by Metal Guru
Dino oil begins to break down at 300 degrees F. Synthetic has a higher limit than that.
Just because Bruce Anderson says 240 is "too damn hot" doesn't mean that it's harming the engine.
So true. I read his comment to mean that 240 is atypical, not necessarily injurious. I would be more concerned with EGT's getting up there commensurate with oil temps, and coking in the turbo.
Old 09-03-2009, 09:59 PM
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Originally Posted by fletcher0780
I saw these on ebay and thought they looked like a neat idea, but I'm curious if they really do anything other than ridding me of $95: http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT My temp usually hangs around 240* after it's warmed up.
Yes, they work. I like the looks.
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