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Old 10-09-2010, 05:15 PM
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getting oily sludge out of cooling system

Just wondering what anyone has used to get it all out? I tried cascade but that didn't work, moved up to simple green that got out most of it but I still have alittle that comes up in the coolant bottle after I drive for 2 days. I'm thinking putting simple green in one more time and see if that does it. Any other products that might work?
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Old 10-10-2010, 06:52 AM
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I think your on the right track but it will take a while. I would also pull the block plug and drain the engine down as far as you can and rinse it with the garden hose. Do this with the radiator as well. Hook all the hoses back up and do the simple green thing again once or twice then drain it all and use distilled water when you put coolant back in.
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Old 10-10-2010, 07:04 AM
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go to a local parts house and get a good detergent base coolant flush (nothing costic) and run it, it will help strip any oily residue from metal parts.
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Old 10-10-2010, 08:50 AM
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I tried putting simple green again today twice and ran it on the highway for 30-40 mins inbetween and it seems to be working. Probably need to do it 1 to 2 more times and it will be good to go.
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Old 10-10-2010, 09:07 AM
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The Ford procedure is 3 gals of Simple Green and run it for an hour or so. I think Greased Lightning does a better job of cutting the oil but the key is a strong concentration and time running at temp. So don't skimp. Load it up with 3 gals and run it for an hour or more then flush the livin' he11 out of it before putting coolant back in. This is the perfect time to switch it over to ELC.
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Old 10-10-2010, 09:15 AM
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I'm going to do it one more time and I'm going to run it a couple hours tomorrow. I just finished doing it a couple minutes ago and there was very little left and the bottle in almost completely clean but I'm going to do it one more time just in case.
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