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Registered
Join Date: Sep 2003
Posts: 199
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car sluggish after sitting for 3 months
I have a 1979 911 SC with CIS which I have owned for 5 years now. I recently took my car to a consignment used car dealer where it sat for about 3 months.
When I dropped the car off it was running great and when I picked it up last week, it is running so sluggish. We live up a hill and I could barely get it into 2nd gear where normally I could get it up to 3rd or even 4th. No pinging, just sluggish. The car always seemed to pull in each of the gears with no hesitation. I put in 92 octance about 8 gallons last night and put in some fuel injector cleaner as well. Me and my buddy pulled each plug and cranked the engine and got spark to each of the 6 cylinders. We also adjusted the air mixture on the fuel distributor and adjusted the timing. The car idles at about 950 RPM's, idles smooth, and runs very sluggish until around 4200 RPM's where it then pulls fine. Anything under 4200 seems like you are in too high of a gear and it bogs way down. Any ideas. Thanks, TBAHR |
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11-14-2004, 08:23 AM
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Driving member
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Could possibly be the gasoline has gotten old. You might need to drain the tank and change the fuel filter.
It also just may need to be driven 
__________________
Jerry '86 coupe gone but not forgotten Unlike women, a race car is an inanimate object. Therefore it must, eventually, respond to reason. |
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11-14-2004, 09:15 AM
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Registered
Join Date: Sep 2003
Posts: 199
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Thanks for the response. I am taking the car to San Diego this week, so hopefully that will blow out the old gas and the car will come back to life.
Me and my buddy just swapped out the warm up regulator and that did not help. I am thinking about replacing the fuel filter tomorrow. |
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11-14-2004, 06:19 PM
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Registered
Join Date: Oct 2002
Location: Monument, Colorado
Posts: 266
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Same thing happened to my car after sitting a while. I had a plugged injector and 2 more with feeble spray patterns. Hopefully the injector cleaner will fix the problem. Drive the car with new gas and a good quality cleaner like Techron.
If the problem still persists, you may want to check the injector spray pattern. If you check the spray pattern at the engine be sure to unplug the coil, you don't want any sparks. A safer way to check the pattern is to remove the injector from the engine, put a little carb cleaner in it, and blow air through it at 55-60 psi. I used a rubber tip nozzle that sealed against the end of the injector. You should see a fine, even spray pattern for about a second.
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Jeff 1981 911SC Coupe - SSI's + Dansk, MSD, AC delete, Heater Backdate, Euro ride height, polygraphite bushings, Rennshift 1998 F-150 4x4 - Snow Time 1998 Yamaha WR400 - Mountain Ride |
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11-15-2004, 06:44 AM
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Senior Member
Join Date: Jun 2000
Location: N. Phoenix AZ USA
Posts: 28,943
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Another vote for a plugged injector. Try using some Berylmans injector cleaner on it and taking it out on the road.
JoeA
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2013 Jag XF, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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11-15-2004, 06:47 AM
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Registered
Join Date: Mar 2004
Location: Summerville, SC
Posts: 2,057
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How far has the car been driven so far? If it was just a short distance could a brake caliper be sticking?
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11-15-2004, 07:26 AM
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1986 Porsche carrera coupe 3.2
