 Vacuum hose goes to ?, Some mods have been done by a PO on my 75 2.0 |
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| porschefile2010 |
 Oct 30 2011, 03:33 AM
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#1
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Member  Group: Members Posts: 228 Joined: 26-May 11 From: Whangaparaoa, New Zealand Member No.: 13,118 Region Association: Australia and New Zealand  |
Hi again. Help! I have noticed oil or oil condensate gathering at the front left of the engine on the tin and vacuum lines. Also the car isn't idling perfectly and the plugs are a bit black except for the electrode which looks the right colour. I also notice today a bit of smoke in off throttle situations coasting down hill, but not under power??
So I went hunting the forums and thought maybe the vacuum lines were loose or split. The car appears to have had a new exhaust setup put in and I can't find any trace of a charcoal filter or emmissions pump or whatever they used to have so there have been changes. But to the point. There is a vacuum hose coming out of the tinware front left of the engine right next to #2 plug. In my car it is poked out through a small hole in the rear firewall??? and not plugged in to anything. Can anyone tell me where this should go? I figured it might be meant to go to the charcoal filter but if that is removed where then. It also looks like there used to be a vacuum line terminal at the narrow end of the air cleaner which had something screwed or bolted to it and this has been closed off? One other mod has been the points taken out of the distributor and an electronic unit substituted if that has any bearing on it. Thanks in advance. Richard |
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| TheCabinetmaker |
Oct 30 2011, 11:52 AM
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#2
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I drive my car everyday Group: Members Posts: 8,304 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
The one from # 2 and "3 meet at a collection box (anti flashback valve) and go on to the air filter via a third hose. In the diagram, hose 5 and 6 go to the valve and 4 goes from there to the air cleaner.
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| porschefile2010 |
Oct 30 2011, 12:11 PM
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#3
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Member Group: Members Posts: 228 Joined: 26-May 11 From: Whangaparaoa, New Zealand Member No.: 13,118 Region Association: Australia and New Zealand |
Yes, thanks - got that one ok. But Hose 1 goes into a filter at the bottom and comes from the very top left of the diagram. What is that that it is coming from. That's the one in my car that goes nowhere. I'm ok with the ones going to the flashback, it's just this one that comes out of the tinware in the front left car near the fan/alternator. Appreciate your help. Thanks
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Posts in this topic
porschefile2010 Vacuum hose goes to ? Oct 30 2011, 03:33 AM
vsg914 That is not a vacuum hose, but a head vent hose. T... Oct 30 2011, 07:16 AM Jeff Bowlsby These may help. From here: http://bowlsby.net/91... Oct 30 2011, 08:37 AM
porschefile2010 Thanks guys.
The engine is defiantely original. GC... Oct 30 2011, 11:29 AM porschefile2010 Sorry. So in that diagram, where the long hose sho... Oct 30 2011, 11:35 AM Jeff Bowlsby Hose #1 is just an air supply tap off the fan plen... Oct 30 2011, 02:17 PM malcolm2
Hose #1 is just an air supply tap off the fan ple... Jan 8 2012, 10:01 PM porschefile2010 Hi Jeff. That's the answer I needed. Thanks ve... Oct 30 2011, 05:26 PM Jeff Bowlsby The air supply nipple on the 1975-76 cars should b... Jan 8 2012, 11:08 PM |
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