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Registered
Join Date: May 2004
Posts: 758
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revs dropping low then bouncing back
1981 911SC. About 700 miles post- top end. Has been running well. Recently when coming to a stop and putting the car in nuetral or when shifting, the revs will quickly fall way down, and occassionally the alternator light will flicker, but car will not actually stall, and revs almost immediately bounce back to 950. It does it all the time, whether cold or warm. Car starts and idles perfectly. Any ideas?
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07-13-2005, 07:46 AM
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MAGA
Join Date: May 2004
Posts: 10,770
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It is most likely running a tad rich due to the hot weather. My '79 SC started doing the exact same thing when the weather got hot. I gave the mixture screw about 1/8 of a turn per others advice and the problem immediately went away!
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German autos: '79 911 SC, '87 951, '03 330i, '08 Cayenne, '13 Cayenne 0% Liberal Men do not quit playing because they get old.... They get old because they quit playing. |
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07-13-2005, 08:06 AM
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Designer King
Join Date: Mar 2004
Location: Toronto, ON Canada
Posts: 5,499
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That's counterclockwise as viewed from above to lean it.
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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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07-13-2005, 08:08 AM
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Registered
Join Date: May 2004
Posts: 758
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Thanks! I'll give that a try.
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07-13-2005, 08:10 AM
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