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Registered
Join Date: Mar 2008
Posts: 51
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Too many hoses
I recently purchased a basket case 74 911S (literally in many boxes). There is one hose connection I can't figure out from the diagrams I have. It is on the cold start valve just below the electrical connection. It is about 1/2 inch ID. Can anyone tell me where this hose should be connected?
Thanks, Jim |
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03-24-2008, 10:05 AM
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Original Owner
Join Date: Dec 2002
Location: San Antonio, Texas
Posts: 1,907
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It is the air bypass line connection to get air past the throttle plate on cold start.
Connect it anywhere above the throttle plate but after the sensor plate. Normally it goes to the back of the boot. Here is a plastic flange that the cold start valve mounts on. 
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tsuter 78 911SC Turbo Targa Thaaaats Right!! |
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03-24-2008, 10:14 AM
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Registered
Join Date: Mar 2008
Posts: 51
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Thanks. Can you tell me at what temperature the "cold" start valve should actually start working?
Jim |
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03-24-2008, 11:10 AM
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Designer King
Join Date: Mar 2004
Location: Toronto, ON Canada
Posts: 5,499
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According to the Bentley, any testing for the CSV and the TTS has to be done w/ the engine @ no more than 45C/113F, so it looks like it would work @ any temp less than that. How long it fires is temp dependant and controlled by the Thermo Time Switch.
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Paul Yellow 77 Sunroof Coupe/cork interior; 3.2L SS '80 engine/10.3:1/No O2; Carrera Tensioners; 11 Blade Fan; Turbo tie rods; Bilstein B6; 28 tube Cooler; SSI, Dansk; MSD/Blaster; 16x7" Fuchs/205/50 Firestone Firehawk Indy 500s; PCA/UCR, MID9 Never leave well enough alone |
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03-24-2008, 01:03 PM
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Registered
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Anyone
does anyone have a cold start valve for a 74 2.7?
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04-28-2011, 11:32 AM
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What's the ID number?
Quote:
I have a few extra CSV (0-280-170-412) in my parts bin that I use for my SC's and 190E. The marking is located on the side of the blue plastic plug. Not sure what the 2.7 liter engines use. Tony Last edited by boyt911sc; 04-28-2011 at 12:03 PM.. |
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04-28-2011, 11:59 AM
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Oooooops!!!!
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PRE-H20, We just hijacked someone's post! Sorry for the intrusion. Tony |
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04-28-2011, 12:07 PM
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Pre- H20
