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#1
02-14-2000, 01:33 PM
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My 65 GTO is blowing oil out of the oil breather on the valve cover. The engine had been rebuilt so I don't think it is piston blow by.
What else should I look for? ------------------ A.S.D.Zimtok Thanks I'll check that out. It seems worse when I accelerate fast and my manifold vacum drops. [This message has been edited by Zimtok (edited 02-14-2000).] [This message has been edited by Zimtok (edited 02-14-2000).] [This message has been edited by Zimtok (edited 02-14-2000).] |
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#2
02-14-2000, 01:33 PM
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My 65 GTO is blowing oil out of the oil breather on the valve cover. The engine had been rebuilt so I don't think it is piston blow by.
What else should I look for? ------------------ A.S.D.Zimtok Thanks I'll check that out. It seems worse when I accelerate fast and my manifold vacum drops. [This message has been edited by Zimtok (edited 02-14-2000).] [This message has been edited by Zimtok (edited 02-14-2000).] [This message has been edited by Zimtok (edited 02-14-2000).] |
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#3
02-14-2000, 05:19 PM
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Clogged PCV Valve or tube, or tube not hooked up to intake manifold. Crankcase is designed to work at a slight vacuum (air goes in breather and out thru PCV valve and into intake manifold). If this isn't working, the crancase will eventially go positive in pressure, no matter how tight the rings are. Older vehicles (such as my '53 Chev P/U with the 216 six) had a "road draft tube" which was essentially a breather that the air rushing past the end of the tube pulled a slight vacuum on the crankcase.
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