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Another newbie question - what is this?
Hi guys - thanks for the help with that cracked hose I found on the the other thread.
While looking for vacuum leaks I found this - which is just open to the air - which can't be right.  Can anyone tell me what it for and where it is supposed to be connected to? Thanks in advance for the help, much to learn. I did manage to remove all of this crap that the PO sloppily installed so making some progress. 
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10-05-2011, 03:09 PM
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Isn't that the connection to the BACK of the airbox?
Doyle
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Recording Engineer, Administrator and Entrepeneur Designer of Fine Studios, Tube Amplifier Guru 1989 Porsche 911 Carrera Coupe 25th Anniversary Special Edition Middle Georgia |
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10-06-2011, 03:26 AM
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Hi Doyle - just ran the garage and check and yes it does. There is a "Y" connection where a long thin metal tube goes to the air box. One of the "Y" had a hose connected to it but the other junction with the red arrow above is open.
Where should that cut hose (indicated with the red arrow) connect to? |
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10-06-2011, 03:47 AM
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Join Date: Mar 2008
Location: Tulsa, Oklahoma
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What year is your car?
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1983 Porsche 911SC - Arrow Blue lightweight '74 Carrera look http://forums.pelicanparts.com/porsche-911-technical-forum/498568-overdue-intro-sc-hotrod-project.html |
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10-06-2011, 04:05 AM
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'74 but has a Motronic 3.2 in her.
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10-06-2011, 04:45 AM
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Location: sectors R&N, SE Pa
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I'm with Doyle - Looks like you're in the vicinity of the drivers side eng bay, but a wider angle pic might help give a better perspective. It could be to your cruise control, but from your other thread, I didn't think you had one.
Hard to tell from the pic, but is it going to a "Y" transition on the lower right? Some cars have a separate vac line to the brake booster, but I don't know which year, so it might be an extra line for your 3.2 in the '74 (was it?). (on edit - 74 - I see now :-) You could try plugging it for the time being and do the whistle check.
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Dan '87 Targa Carrera 3.2 - Fabspeed Cat Bypass, M&K Muffler, SW Chip Venetian Blue |
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10-06-2011, 07:34 AM
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Location: sectors R&N, SE Pa
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hope this helps.
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Dan '87 Targa Carrera 3.2 - Fabspeed Cat Bypass, M&K Muffler, SW Chip Venetian Blue |
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10-06-2011, 07:37 AM
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Location: DE
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Hy
I am almost sure itīs the hose for your brake booster in the front. |
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10-06-2011, 07:39 AM
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Hi guys - thanks for the info. I looks like that it is - that "Y" interaction is on the driver side and goes to the airbox so the connections all match the diagram above. As a matter of honor I did look in the Bentley Service Manual this AM but missed that diagram.
Since this goes to a non-existent booster (since my car is a 1974) I should just cap it, right? Having it open would result in a leak as well as allowing crap into the airbox post filter which can't be a good thing. Thanks! |
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10-06-2011, 10:05 AM
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It is sufficient to seal the hose with a cap.
Otherwise the engine runs badly because of the leak |
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10-06-2011, 10:58 AM
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tdskip,...just to qualify (as I've been absent),..my experience with my 89 (early days, that is) involved leaving the rear airbox connection disconnected because I forgot to DO IT.....although I don't recall any subsequences from this (as I always double-triple checked everything before firing her up,..YES: I caught myself overlooking (re)making this connection upon reassembly). NOT SURE, AT ALL,..if such is related to your "cause",..so: not to distract....I wouldn't know jack about "a "74 with a Motronic",..well,..maybe a little,..but NOT specifics, although I love to read the stuff......,..(but that's all it is)....I'm a bit busy these days to indulge this SO desired knowleadge realm.....
ANYWAZE,..your pic reminded me of the days of my oversight (not necc'y "technical,....sorry)... BEST! Doyle
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Recording Engineer, Administrator and Entrepeneur Designer of Fine Studios, Tube Amplifier Guru 1989 Porsche 911 Carrera Coupe 25th Anniversary Special Edition Middle Georgia |
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10-06-2011, 03:43 PM
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