The "T" is metal. I think I have a pressure relief valve that sticks sometimes. Sometimes my engine flings oil and sometimes it doesn't. When it does, it is definitely coming out from behind the bottom pulley and getting on the belt. This started about a couple of weeks ago, I have just not had the time to really troubleshoot it. When I would clean the engine bay and drive around for awhile, it would be just as clean as when I started. Other times, when I wasn't looking for it, I wold notice an arc of oil drippings on my driveway and open the hood and find a mist of oil everywhere. I read the Bentley manual last night as well as the John Muir book concerning flinging oil. I found out a stuck pressure relief valve will cause the oil pressure to get too high, pushing it past the oil slinger, and cause engine temps to sky rocket. And yesterday, I had a nice spray of oil all over the engine compartment. Not sure if that is the cause of my problem, but it is a cheap and easy place to start. Luckily I have nothing planned for this weekend; no work, no "honey-do's", no school work, nothing. I don't have any other form of transportation, so I had to drive it to work today. I'll take it easy on the drive home, then once it cools off to a comfortable temp, I'll check the relief valves. The last thing I need is a popped oil cooler or cooked engine.
when you say "breather", i think of the hose that comes out of the oil filler neck which curves down and opens up below the cooling tin. When it comes to a breather that evacuates from the valve covers, I don't have one. I have looked at them, but never bought a set. I have included an old picture of my engine. Notice the tube coming out the the filler neck and going down. I have asked the local VW shop many times if I should upturn that tube and put a little filter on it since starting the engine causes negative pressure which could potentially suck in dirt. They have always told me I didn't need one.
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