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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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03-26-2015, 11:12 AM | #1 |
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Removing dirty oil from oil cooler and lines
Has anyone determined how to remove dirty oil from a cooler setup? I have the Mishimoto cooler kit, and I am wondering if its possible to use air pressure somewhere on sandwhich plate with or without filter in place to lightly pressurize system to push oil oil out of the cooler.
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03-26-2015, 11:25 AM | #2 |
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sonic cleaner.
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03-26-2015, 11:53 AM | #3 |
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I have built a oil purge system from a cheap used pressure cooker and a couple of AN fittings.
You just fill the cooker with cheap oil, connect it to one end of the cooler lines, stick the other end in a bucket and pressureize the cooker with air. It will blow all of the old oil out. And one idea we had but havent tried was to unbolt the cooler, and strap a random orbital sander to it and turn it on while flushing to dislodge any particles. If you ever detonate an engine with an oil cooler, BUY A NEW COOLER! |
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03-26-2015, 11:55 AM | #4 |
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You never get all the oil out anyway. That half liter or whatever in the cooler doesn't really matter.
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03-26-2015, 01:35 PM | #5 |
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What he said. All my rotary race cars had the huge stock FC oil cooler on them, and I never once worried about it. If you're really worried about how much of a difference that little bit of dirty oil makes, just change yout oil at 6500 miles instead of 7000 miles. My oil has been near spot less at 7000 miles. I'm amazed at how clean these things run. Though, I do come from a completely different tuning world.
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03-26-2015, 02:08 PM | #6 |
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I was always under the impression that the oil in the cooler is just mixed with the new oil. That's what happens already with a normal oil change, the interior of the engine doesn't drain completely.
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03-26-2015, 02:56 PM | #7 | |||
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So that is ~4 quarts in the lines out of ~9 quarts total. Mid-engine with coolers behind the front bumper.... |
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03-26-2015, 03:50 PM | #8 |
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30', that sounds efficient... Yay Porsche! That's why we used to see so many oil coolers in the rear spoiler. Good thing the car in question is not mid-engined.
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Last edited by Hyper4mance2k; 04-08-2015 at 11:06 AM. |
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03-26-2015, 04:09 PM | #9 |
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We're not talking about your race car. We're talking about twins with a few feet of hose.
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03-26-2015, 05:01 PM | #10 |
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Thanks for the suggestions, but I was wondering how to extract used oil from cooler system while mounted on the car. But most of you are right, no need to worry about the small amount of oil in cooler and lines anyway. Again, as mentioned above, there is still plenty of residual oil in engine after draining.
I am already changing syn oil at 3000 miles, lol! Oil is cheap compared to replacing major engine parts. |
03-26-2015, 05:13 PM | #11 | |
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03-26-2015, 05:48 PM | #12 |
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03-26-2015, 05:55 PM | #13 |
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Autoxing and tracking car and it gets really hot and dusty in s. texas.
PS Dave, I am going to try and make a record run up to Denver in my car next week, lol. My son lives in Denver and drives an STi Launch edition. Just going up to hang out with him. |
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03-26-2015, 06:14 PM | #14 | |
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I was responding to the people who commented on WHY I feel the need to flush MY OIL cooler. Are we no longer allowed to respond directly to questions if they are slightly off topic? WTF are you the thread police?? |
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