[v12-engine] crankcase filter and vacuum again

Having spent the last few days on my crankcase filter project I have
finally completed the vacuum issue to my satisfaction. Having figured
out the stock PCV Jaguar system, I have essentially reproduced this
system with some modifications. The PCV valve is retained and the
crankcase vacuum is adjustable. I have also adopted John Napoli’s
idea of an observation tube to monitor the effectiveness of the
filter. The website has been updated with the new configurations and
some new photographs. The link is.


For those interested, I have added some pics of the PCV system in my
Jeep and my other cars. Its on my public link at:


The manual said “Windows XP or better” so I bought a Macintosh


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