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Registered
Join Date: Apr 2009
Location: Israel
Posts: 352
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Main vent switch question
Hi Guys
I have attached 2 pictures with the "main vent switch" that I have. I was wondering how this switch should look like since mine is broken... There are actually 2 and they do work. I was wondering if I can press on both of them or only one at a time? I just dont know what should happen... I can build some small metal device that will enable the plastic lever to press on those switches.. Thanks!  
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Porsche 928S 4.7L 1980 European redhead 
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06-15-2010, 04:03 AM
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I have the same switch in mine and it boggled me for months. I think you can just flip the switch up so the lever catches it. Try it and report back.
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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior 1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior **SOLD** 
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06-15-2010, 08:57 AM
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Location: Israel
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I think that there is something missing there so the lever itself cant put pressure on those 2 micro switches...can the both micro switches be pressed in the same time? or only one at a time?
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Porsche 928S 4.7L 1980 European redhead
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06-16-2010, 01:22 AM
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flip the switch up and on the inside of the lever. You'll see what I mean once you do it. Lever will then make contact. Kinda brushes the top of it.
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1981 Porsche 928 "Euro" Auto Gunsmoke Metallic Flat - Black Interior 1983 Porsche 928S "US" Auto Light Bronze (Copper) Metallic - Brown Interior **SOLD**
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06-16-2010, 05:05 AM
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Location: Israel
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Thanks! I will try to do that!
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Porsche 928S 4.7L 1980 European redhead
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06-17-2010, 12:50 AM
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OK, so it was not possible to lift the switch since it has predefined place and it cant go up towards the lever.
I have disassembled this switch from its place and then I noticed that something was missing since it had small holes for a missing shaft that probably was connected to some metal piece that pressed on the 2 micro switches... I then created a "V" shaped metal strip and using a thin metal pin I have created a shaft and combined them together. I put everything to its place and here is the result:   Now the lever brushes that metal strip and activates the 2 micro switches one by one 
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Porsche 928S 4.7L 1980 European redhead
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06-20-2010, 05:43 AM
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