I thought I knew the answer to this question, but am now unsure. My engine has some blowby and I notice that after motoring under load for an hour or so I will get smoke in the cabin - worst when I don't run the blower, not very bad at all when I do. I have noticed that my blowby is worse now than it was a year ago. At the same time that my blowby has become worse, I get elevated carbon monoxide readings on my detectors - they used to always read zero. However, I have also done a recent exhaust system overhaul (I kept the original manifold, but everything else is new). At first I assumed the problem was with the installation of the exhaust flange. I took it off and saw that only one gasket was used, so I put two on. That seemed to help the problem a little. QUESTION: does crankcase blowby contain carbon monoxide to the extent that it would cause elevated readings on detectors? Does blowby contain as much carbon monoxide as exhaust?
Before I screw around with my exhaust installation more, I was thinking about getting PCV kit to see if stopping the blowby would cure my problem.
Before I screw around with my exhaust installation more, I was thinking about getting PCV kit to see if stopping the blowby would cure my problem.
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