Vacuum Schematic for D-jet 1.7, ...anybody?? |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Vacuum Schematic for D-jet 1.7, ...anybody?? |
vesnyder |
Jul 25 2006, 08:49 AM
Post
#21
|
Senior Member Group: Members Posts: 680 Joined: 14-April 05 From: Cleveland, OH Member No.: 3,933 |
Anybody have a legible/usable vacuum schematic for a D-jet 1.7? My hose set is not complete and need to replace and it is not clear all the hoses are connected properly.
BTW - my car is idling at ~3k+ RPM so I have some serious issues! |
vesnyder |
Jul 25 2006, 12:36 PM
Post
#22
|
Senior Member Group: Members Posts: 680 Joined: 14-April 05 From: Cleveland, OH Member No.: 3,933 |
I've included the schematic and hopefully you guys can provide some clarification. Most of mine is accurate, but I have other other vacuum connectors/locations. On mine, adjacent to the fan shroud and oil filler I have three connectors - one pointing up and two horizontal - one facing back and the other facing the passengers side. I also have another connection hold very close to the MPS connector on the manifold (?). The car revs close to 4000 until I close this one off, then the car just about dies? The breather lines that come out of the valve train area - where do they connect to? Question - does the MPS have 4 wires connected to it? What is the round thing adjacent to the Air Filter, that has the two lines - one going to the manifold and another going to the intake boot? More questions than I thought?
Lastly, when testing it just now, the car revved wildly - past redline - and I had to shut it off. Last time it did that I changed the throttle cable thinking it was sticking, but now I think it is the vacuum system making it rev - WTH could be casuing this? Attached image(s) |
Air_Cooled_Nut |
Jul 25 2006, 02:24 PM
Post
#23
|
914 Ronin - 914 owner who lost his 914club.com Group: Members Posts: 1,748 Joined: 19-April 03 From: Beaverton, Oregon Member No.: 584 Region Association: None |
QUOTE ...On mine, adjacent to the fan shroud and oil filler I have three connectors - one pointing up and two horizontal - one facing back and the other facing the passengers side. This is part of the emissions system. The upward facing port goes to the air cleaner (top of it). The two horizontal ports connect to the top of the heads where the lifters (valve train) are, one hose per side. QUOTE I also have another connection hold very close to the MPS connector on the manifold (?). The car revs close to 4000 until I close this one off, then the car just about dies? Hard to say. Possibly the AAR (Aux. Air Regulator) which is only used when the engine is cold. Look for an object that has only two hoses going to it and the object has a wire coming out from the bottom of it. That's the AAR. Once it (and thus the engine) are warmed up, the rotating valve inside will cut off the air supply and removing the hose (from the top of the air cleaner side) won't have an effect and there will be no vacuum present from the hose. QUOTE The breather lines that come out of the valve train area - where do they connect to? See first comment above. QUOTE ...What is the round thing adjacent to the Air Filter, that has the two lines - one going to the manifold and another going to the intake boot? More questions than I thought? that would be the AAR as mentioned above. QUOTE Lastly, when testing it just now, the car revved wildly - past redline - and I had to shut it off. Last time it did that I changed the throttle cable thinking it was sticking, but now I think it is the vacuum system making it rev - WTH could be casuing this? A disconnected vacuum line or your idle adjustment is waaaay off. |
Lo-Fi Version | Time is now: 11th June 2024 - 11:58 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |