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Guest Message by DevFuse

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Dealing with the blown head gaskets aftermath

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4 replies to this topic



    Eat, Live, Breath Subaru

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  • 264 posts
  • Oak Ridge, NJ

Posted 27 July 2006 - 08:24 AM

Anyone know the best way to clean the inside of the radiator and overflow tank to get rid of the residual oil from the blown head gasket?

#2 Jerry DeMoss

Jerry DeMoss

    Pushrods 'O' Fury

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  • Colorado

Posted 27 July 2006 - 10:40 AM

The radiator is best to go have it hot tanked.Same for the overflow.

#3 NorthWet


    Eeyore Incarnate

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  • Bremerton, WA

Posted 27 July 2006 - 03:53 PM

Any of the detergent-based cooling system cleaners should work.

#4 nipper


    Semi Elite Master of the

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  • Long Island NY

Posted 27 July 2006 - 08:43 PM

the older subaru section loves to use DAWN dishwashing liquid.


#5 porcupine73


    Obligate carnivore

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  • Buffalo, NY

Posted 28 July 2006 - 07:17 PM

FYI, I used Prestone Radiator Super Cleaner not too long ago, and man that stuff makes the coolant foam like it's a washing machine.

I built my own cooline system flusher with a 3/4hp pump from Harbor Freight, some PCV piping and valves, and hose, and flushed about 10 gallons distilled water through a couple times, and it was foamy like washing machine discharge. [remove thermostat, reinstall housing incl/ gasket, pump into water pump intake, collect discharge at radiator outlet] -Louis :)

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