Author Topic: Engine Flush... dirty radiator water  (Read 73 times)

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Offline via3d

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Engine Flush... dirty radiator water
« on: October 13, 2017, 12:57:50 AM »
Resurrecting a 79 firebird 403

Issue:  The radiator water is dirty and sooty looking.... black.

-Sitting a few years.
-Brand new radiator.
-no oil in water is evident. 
-have filled & drained radiator 4 times now. seems to be dissipating to some, but still significant i wont her this way.

What is easiest / best way to flush engine?
I figured at this point I need to get 3 way adapter/short piece of 3/4" heater hose &  flush with engine running from the front side heater hose/top of water pump with radiator cock open ???

Do I perhaps have a bigger issue with dirty black sooty water?