Cleaning EGR Scum

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Cleaning EGR Scum

08-12-2000, 07:27 PM

Chris Haney Chris Haney is offline

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Join Date: Apr 1999

Location: Apex, NC USA

Posts: 176

Noticing the thick layer of black sludge beginning at the EGR port I have removed the crossover duct and the intake mainfold. These I can clean easily but what about the head. I can see the same layer of scum on the head walls and the valve stem.

Is there some way to deal with this or isn't it worht it?

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1991 350 SDL
125,000 miles

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