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1991 Chevy Silverado 350 ci after removing valve.

Tiny
SHARPEN
  • MEMBER
  • 1991 CHEVROLET SILVERADO
  • 90,000 MILES
1991 Chevy Silverado 350 ci after removing valve covers I noticed that passenger side had way more gunk and sludge than the driver side. What would cause that? Leaking coolant at back of intake manifold so going to change valve cover gaskets while I have it apart. That is when I noticed how much more sludge and gunk on passenger side under valve covers.
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Thursday, November 10th, 2011 AT 11:05 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Comes from lack of manitenance. You need to scrape out all the sludge and open up the 2 return holes on either end. Do not let any dirt go down to the pan as it may clog the pick up screen and will starve the engine of oil.

Roy
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Thursday, November 10th, 2011 AT 1:43 PM

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