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Registered
Join Date: Sep 2002
Location: Central Virginia
Posts: 414
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82sc idle adjustment
Got the 82 back from the shop today; mchanic at the track so couldn't consult with him:
He did some ignition work and idle adjustment because he said when I dropped it off idle was around 2000. Not sure why it was that high for him, as that wasn't the case for me. Now it's idling at 400-500 and wants to stall. Adjustment of the big idle screw had minimal effect and while it idled better after adjustment (engine hot), an hour later when cooled a bit it was stalling again. He had checked for vacuum problems etc so prbably not that. I just don;t understand why the screw has little effect. I'm tempted to mess with the adjuster nut on the cable housing.. Paul
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Paul '87 Carrera cab; '19 Ford Flex for the Dane and Lab; '17 Tacoma for truck stuff. '96 993 cab (gone, oops); '82 SC (gone) |
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11-07-2009, 03:28 PM
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Join Date: Oct 2005
Location: Capistrano Beach, Ca.
Posts: 7,235
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Wait until he returns from the track and take the car back. Explain your mystery of the 2K rpm and have him recheck everything to get the idle to its proper place. In the mean time, you could check the timing and point gap at home to see if they are in spec.
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L.J. Recovering Porsche-holic Gave up trying to stay clean Stabilized on a Pelican I.V. drip |
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11-07-2009, 03:59 PM
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Join Date: Oct 2003
Location: Michigan
Posts: 14,093
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Sounds like a vacuum leak based on the idle screw not having any effect. It lets air in/out of the idle circuit.
The timing could be off a tad but unless you know what he set it at, you'd be chasing your tail. I would wait before doing anything until you talk to the tech. It's HIS problem, IMO.
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1981 911SC ROW SOLD - JULY 2015 Pacific Blue Wayne |
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11-07-2009, 05:04 PM
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Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
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could be ther plumbing behind the CIS for the AAR and decel valve. big air leak, AAR open?
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86 930 94kmiles [_  _] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD88 BMW 325is 200K+ SOLD 03 BMW 330CI 220K:: [_ _] RUNNING: [__] NOT RUNNING:01 suburban 330K:: [_ _] RUNNING: [__] NOT RUNNING:RACE CAR:: sold |
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11-09-2009, 05:00 AM
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