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Registered
Join Date: Nov 2004
Location: West Virginia
Posts: 99
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Idle and air/fuel controls on SC
My first 911, a '78 SC from CA, will be here in a couple weeks. In the event that the car needs to be fine tuned to the WV climbate, how do I adjust the idle or air/fuel mix? I have a friend who owns an '83 which has the handy-dandy air/fuel screw that he uses to set the idle. I understand that the 78-79 does not have this feaure.
This borders on being a stupid question....but I honestly don't know the answer since I'm new to Porsche ownership. Aaron |
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03-27-2005, 07:40 AM
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Designer King
Join Date: Mar 2004
Location: Toronto, ON Canada
Posts: 5,499
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This is adjustable on your car. The mixture is adjustable w/ a 3mm Allen wrench via a hole in the top of the air flow sensor assembly. The idle is set by turning the wide flat screw on the side of the throttle housing.
If you do a search, you will find a lot of info. The Bentley book also shows how to do this, and I think so does Wayne's "101 Projects". I am not sure about CA. It is possible the mixture screw has a plug over it. This can be drilled out for access.
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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 Last edited by Paulporsche; 03-27-2005 at 08:08 AM.. |
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03-27-2005, 08:05 AM
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Registered
Join Date: Nov 2004
Location: West Virginia
Posts: 99
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Thanks, Paul.
The seller is including a Bentley and 101 Projets, so I'll familiarize myself with the procedure when it arrives. Don't know why I thought the 78-79 didn't have this adjustment?!? I'm looking forward to fiddling around until I find an ideal setting. The reason I asked in the first place is because my friends '83 ran great in Colorado, but crappy in WV until he adjusted the air/fuel mix. Thinner air issue I suppose. Aaron
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1978 911Sc Talbot yellow |
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03-27-2005, 08:31 AM
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