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The 71 has a PCV valve, and that tube to the filler, and works well but that PCV valve as too much of a restriction with the vacuum available from the carbbed setup on the Notch. The other thing might be that Ive noticed the the Full mark on some of my dipsticks has been about a half quart overfull, and the 71 will tend to suck oil if its that high. With a full flow it can be hard to determine just how much oil the system takes but if your still stock add the 2.5 qts and see where the oil level falls. Keith Top Notch Restorations topnotch@nycap.rr.com 71 Squareback 65 Notchback "El Baja Rojo" 65 Squareback "Eggcrate" 87 golf "Winterat" 93 RX7 "Redstur" -----Original Message----- From: John Jaranson [mailto:jaransonT3@comcast.net] Sent: Thursday, June 22, 2006 9:59 PM To: type3@vwtype3.org Subject: Re: [T3] Sophy's Invasion Shake-down Run On Jun 22, 2006, at 9:50 PM, Keith Park wrote: > Check and make sure your breather parts are clear and correct for your > application, I had a leak in the Notch engine in the rear a while > back that > turned out to be a PCV valve in the late breather I was using > restricting > the airflow, I gutted it and no more oil leaks (till the latest bell > housing > issue) > I have Sophy's original 1966 small breather on there. The only difference is that I used a late oil filler tube with the drain return from the breather. I have the breather plumbed into it instead of just the little rubber one-way flapper valve on the end. Maybe that is forcing all the crankcase pressure to go into the air cleaner since the bottom of that tube is also pressurized by the crankcase. Hhhmmmmm. That might explain why I have a leak at the soft joint between the down tube on the breather and the oil filler pipe sometimes. What do the newer cars do that have this arrangement? PCV valve? Later, John Jaranson '66 Square (Sophy) '70 Fasty (Jane 2 - Type 3 Lead Sled wannabe) '71 Fasty (Jane -parts car due to rust) http://mywebpages.comcast.net/carartbyjohn/ http://mywebpages.comcast.net/jaransonT3/jaransonT3/ http://mywebpages.comcast.net/jaransonT3/2006Invasion/ http://mywebpages.comcast.net/jaransonT3/notavwclub/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~