Crankcase/cambox ventilation
Posted: November 2nd, 2010, 8:17 pm
Evening Guy,
A tedious question which I am having difficulty in answering. My two A4 files of the Lancia factory manual do not appear to help much. The Integrale crankcase ventilation seems to operate as follows. Fumes from the upper cylinder are vented to a sealed tank via a pipe from one end of the cambox. Crankcase fumes also pass to this tank via another pipe. A third pipe connects this tank to another outlet(or inlet?) on the crankcase via a flame trap. There is also a connection, via a one way valve , from this pipe to the inlet manifold. So it looks as if any separated oil drains back to the lower part of the crankcase and fumes to the inlet manifold.
So, the questions are;
(a) Am I on the right lines and
(b) if I want to replace this system with a catch tank, apart from blanking off the inlet manifold take-off point, any advice on how to pipe this little lot up, bearing in mind that commercially available catch tanks seem to be born with just two pipe connections.
Andy
A tedious question which I am having difficulty in answering. My two A4 files of the Lancia factory manual do not appear to help much. The Integrale crankcase ventilation seems to operate as follows. Fumes from the upper cylinder are vented to a sealed tank via a pipe from one end of the cambox. Crankcase fumes also pass to this tank via another pipe. A third pipe connects this tank to another outlet(or inlet?) on the crankcase via a flame trap. There is also a connection, via a one way valve , from this pipe to the inlet manifold. So it looks as if any separated oil drains back to the lower part of the crankcase and fumes to the inlet manifold.
So, the questions are;
(a) Am I on the right lines and
(b) if I want to replace this system with a catch tank, apart from blanking off the inlet manifold take-off point, any advice on how to pipe this little lot up, bearing in mind that commercially available catch tanks seem to be born with just two pipe connections.
Andy