Liquid oil in the exhaust.... and other oddities - 986 Forum - The Community for Porsche Boxster & Cayman Owners

maytag · 11-05-2018, 12:43 PM

aaaahhhhhhh..... Bach. ($5 to anyone who recognizes that reference, haha)

Okay. thanks to Radium King, JFP and 911Monty, My eyes have been opened. YEah, I can see it now... makes total sense. that ALSO leads me to understand what MaxD was getting at, about the engine turning backwards....

y'all are a wealth of knowledge here.

now, excuse me while I back-up a little bit, as I take a long look at the way Porsche engineers designed that entire system, and shake my head in wonder. (as in: I wonder why in hell they still had jobs after that mess?)

Of course, I've seen worse, because I've owned Jaguars, RangeRovers and Maseratis.

911monty · 11-05-2018, 12:55 PM

Quote:

Originally Posted by maytag

aaaahhhhhhh..... Bach. ($5 to anyone who recognizes that reference, haha)

Okay. thanks to Radium King, JFP and 911Monty, My eyes have been opened. YEah, I can see it now... makes total sense. that ALSO leads me to understand what MaxD was getting at, about the engine turning backwards....

y'all are a wealth of knowledge here.

now, excuse me while I back-up a little bit, as I take a long look at the way Porsche engineers designed that entire system, and shake my head in wonder. (as in: I wonder why in hell they still had jobs after that mess?)

Of course, I've seen worse, because I've owned Jaguars, RangeRovers and Maseratis.

In your previous thread, Post #12, I asked if you got the clutch released before going backwards in your spin when I asked about the scavenge pumps. Have you checked their condition? The sources for pressure in these engines come from compression/combustion, thermal/ water, and mechanical/ oil pump. Since you don't have water in the oil there is really only 2 sources you need to evaluate for pressure in the valve covers. The AOS is a source of vacuum not pressure. It is basically a regulator between the intake vacuum and the crankcase.

maytag · 11-05-2018, 03:28 PM

Quote:

Originally Posted by 911monty

In your previous thread, Post #12, I asked if you got the clutch released before going backwards in your spin when I asked about the scavenge pumps. Have you checked their condition? The sources for pressure in these engines come from compression/combustion, thermal/ water, and mechanical/ oil pump. Since you don't have water in the oil there is really only 2 sources you need to evaluate for pressure in the valve covers. The AOS is a source of vacuum not pressure. It is basically a regulator between the intake vacuum and the crankcase.

Thanks Monty. I had to go back and look, because I didn't remember you asking about the motor spinning backwards. Shonuff: you asked. I may not have seen it, as it is a "PS" at the bottom, which I might've dismissed as a sig-line. Either way: I appreciate that you were looking ahead for me. :-)

No, I haven't yet inspected the scavenge pumps. Any second now. haha.

Seriously, I haven't really had any time to do much of anything yet. I've got too much else distracting me right now. When I find a minute to work on the porsche, it's usually just that: a minute.

Hopefully after my business-related fires, my son's wedding, my daughter's Missionary-departure (we're Mormons over here :-) ) and my wife's various and sundry honey-do's... (that's Wife's, not Wives'... even though we're Mormons over here, haha).....

I'll get to it sooner or later.

911monty · 11-05-2018, 04:37 PM

Ha sounds familiar. My daughter served the Cebu mission in Philippines. We dropped her off the MTC and the next day was the BYU vs Texas game that was delayed due to lightning and flooding. Shoulda seen it coming, 3 days after arriving in the Philippines was the massive earthquake and then of course typhoon Yolanda tried to drown them all. And we thought the hardest thing was for her to have to wash clothes in the river. HA! We're thankful she made it home. Hope yours goes better.