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just me
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Hanging Idle fixed
Just had my car in for a service to repair the input shaft on my rebuilt 915. apparently the early input shafts have a weak point, and mine sheared. so the shop went back in a dropped the motor and tranny to fix it.
when I got the car back the idle would hang at around 2000 once the engine was warmed up. I could get it back down to about a 1000 by dragging the clutch a little with the car in 1st at a stop. kind of annoying, so I started to look into what was happening. I had just put in a steve wong chip to match my SSI's and 93 octane available here, so I went to his site and looked at what might be possible. checked out the throttle switch and the idle position switch and both were fine. so I tested the idle by jumping the connections b and c. idle went up like it was supposed to. next I looked at the linkage up near the intake. I think we have the root of the problem. it was not smooth. felt like it was hanging up somewhere. so I started checking all the possible adjustments that should be right. I could push the linkage and get the idle right down at 800. so I got under the car and checked the linkage next to the transmission. definitely hanging up somewhere, and now the idle was up around 2400 and I could not get it back down. so I went further to where the cable goes through the rubber boot and into the car on it's way up to the pedal linkage. after plenty of jiggling and re-starting the idle finally fell back down to 800. steady as a rock. revved it from the linkage near the transmission. worked perfectly, and the same at the linkage by the intake. thanks to Pelican, Steve Wong and the bentley manual I got it fixed just right. took it out for a spin and scared myself silly... again. love these cars! 
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1975 911s, 3.2l and 915 transmission front oil cooler RUF replica bumper ducktail and SC rear flares SW chip ssi's m&k 2 in 1 out sc front calipers PF 97 pads fuchs 16 x 7 and 8 225/ 245 toyo ra-1s 22/29 torsion bars 25mm Charlie Bars Neatrix bushings lowered and corner balanced DAS bolt in roll bar kirkey seat 5 point harnesses. http://www.hairydoggrrrage.com/ |
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04-03-2010, 03:52 PM
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Northern Motorhead
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I have the same issue with mine,first it was the linkage on the gearbox that was binding and unless i have to take that apart to clean and lube it again i will go deeper like you did and follow the cable up to the pedal !
It gets annoying because it only seems to happen when i pull into a parking spot or at a traffic light when there are a lot of people around ... lol Thank you for the info ! Cheers ! Phil
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Cheers Phil 89 Coupe,Black,95 3.6 engine and the list goes on ... 1983 944 SP2 race car PCA #96 |
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04-03-2010, 05:10 PM
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Bland
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I had problems with my car ths year too. The linkage is a bit more complicated since I am running webers. I couldn't fina anywhere obvious where it could be bingin so I sprayed WURTH HHS2000 in all of the ball sockets. worked the throttle a few times and left it over night. The next day, everything was fine.
That stuff is nothing short of amazing.
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06 Cayenne Turbo S and 11 Cayenne S 77 911S Wide Body GT2 WCMA race car 86 930 Slantnose - featured in Mar-Apr 2016 Classic Porsche Sold: 76 930, 90 C4 Targa, 87 944, 06 Cayenne Turbo, 73 911 ChumpCar endurance racer - featured in May-June & July-Aug 2016 Classic Porsche |
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04-03-2010, 06:24 PM
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1975 Porsche 911s 1987 3.2l carrera
Crop Duster
Kachow
1976 Porsche 930
