Guest Anonymous Posted December 29, 2001 Share Posted December 29, 2001 i have my intake off to clean things up a little bit and i noticed that they is deposits of some sorts inside the intake from where it meets the head all the way to the TB not sure what it is?? Quote Link to comment Share on other sites More sharing options...
Guest Tom Scala Posted December 29, 2001 Share Posted December 29, 2001 I had the same thing in mine. It was from a bad PCV valve sucking oil out of the crankcase up to the intake. It must have been happening for years because it was baked on and was tough to clean out. Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted December 30, 2001 Share Posted December 30, 2001 thanks it must have happened before i replace the pcv valve. yeah mine was caked on there too i took the dremel and cleaned it all out Quote Link to comment Share on other sites More sharing options...
johnc Posted December 30, 2001 Share Posted December 30, 2001 Actually, a PCV valve is supposed to purge the crankcase of oil vapors. Maybe there's an excessive amount of blow-by? Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted December 30, 2001 Share Posted December 30, 2001 if i had blow by wouldnt i be burning oil? my car doesnt smoke a bit and i havent lost any oil even on the 1500 mile drive to get to my new station. Quote Link to comment Share on other sites More sharing options...
johnc Posted December 30, 2001 Share Posted December 30, 2001 I'm not sure. My racing motor burned a quart of oil every couple hours of use yet had very little blow-by. The intake manifold and intake ports were spotless. I did run Mobil 1, changed the oil after every event, and ran the stock PCV system. The valve cover vent ran to a catch can (per the rules.) For some reason I'm thinking that intake deposits are mostly the result of fuel, not oil. But, I'm a suspension guy. Motors are just things that make the car go forward. Quote Link to comment Share on other sites More sharing options...
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