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PCV on a B20 120-130

posted by  Phil S. on  Sat Aug 6 08:17 CST 2005
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last visit: Fri Oct 24 13:18 CST 2014
[RELATED]

Stan,

A B20 runs fine with the PCV hooked up like a B18, and vice versa. You can do it either way, but you cannot mix and match the two versions. That will cause problems.

B18 airflow:
Air cleaner -> valve cover cap -> crankcase -> teardrop w/ flame trap -> PCV valve -> intake manifold w/o restriction

B20 airflow:
Air cleaner -> teardrop w/o flame trap -> crankcase -> valve cover cap w/ flame trap -> intake manifold hooked to a restricted fitting.

If you do the B18 method, the big end of the PCV valve connects to the teardrop.






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