Just did this with a 1.9 wasserboxer engine (now being converted to a
1.9TD).  Basically I used a lot of HOT water and let it run through the
cooling system catching what came out the other side in a big bucket.  I did
this for about 30 minutes and at the end there was no oil in the system at
all or at least no oil that was coming free.

David Marshall

Fast Forward Automotive Inc.
4356 Quesnel-Hixon Road
Quesnel BC Canada  V2J 6Z3

http://www.fastforward.ca    mailto:sales@fastforward.ca
Phone: (250) 992 7775        FAX: (250) 992 1160

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-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf
Of Dyer Lytle
Sent: November 4, 2003 1:49 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Cleaning cooling system with engine out.

Hi all,

Does anyone have a recommendation for how to clean out the
cooling system on an '84 Westy while the engine is out being
rebuilt?  This engine failed by breaking a head stud and there
was coolent leakage into the oil as well as oil leakage into
the coolent.

I am rebuilding the engine and I will remove the radiator and
take it to the shop for cleaning/testing but I not sure how to
get the oil/water/emulsion out of the hoses and pipes under
the vehicle.

When I took 'auto mechanics' in high school we had a device called
a "Zoo Flush Gun" which was a nozzle device to which was attached
a water source as well as a compressed air source.  The output was
a high velocity, high volume water froth.  This would probably be
great for this application, assuming that I disconnect the radiator
and heater cores and flush them seperately.  But I don't know where
to find such a device.

Thanks,

  -Dyer Lytle in Tucson