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1983 911SC Engine Cooling Air Fan Blade Chip

Vehicle Information: Model: 911SC; Year: 1983; Body Type: Targa; Total Mileage: 178K;

I would like to know if a small chip out of one of the blades of theeleven blade fan will effect anything? It is a very small chip on theback side of one of the blades.

1980 911SC Exhaust System For Increased Performance

Vehicle Information: Model: 911SC; Year: 1980; Body Type: Coupe; Total Mileage: 137000;

I'm looking to get more performance out of my SC and heading towardsgetting performance mufflers of any type or brand. I prefer horsepowergains and good sounds to long life. What do you think about the Burschmufflers?

2.7 Liter Engine Oil Leak

Vehicle Information: Model: 911-engined dune buggy; Year: 1975; Body Type: Convertible; Total Mileage: 1000;

1976 911 Exhaust Valves

Vehicle Information: Model: 911; Year: 1976; Body Type: Targa; Total Mileage: approx 50,000 since last rebuild;

Last month I decided to put headers on my Euro 2.7 motor, shortly ran thecar with the headers then decided to install early heat exchangers. WhenI pulled off the headers I noticed that cylinders 4 and 5 exhaust valveshad what appears to be sodium built-up around the base. What are thechances of a full breakage; assuming they are cracked now, if I continueto run the car? Could this substance be something other than sodium?

1981 911SC Engine Hesitation at Low RPM

Vehicle Information: Model: 911 SC; Year: 1981; Body Type: Targa; Total Mileage: 157,000;

1977 911S Cam Installation and Cylinder Head Repair

Vehicle Information: Model: 911S; Year: 1977; Body Type: Coupe; Total Mileage: 112,000;

1977 911S Poor Performance Over 4000 RPM

Vehicle Information: Model: 911s; Year: 1977; Body Type: Targa; Total Mileage: 77k;

1980 911SC Runs Rough When Cold

Vehicle Information: Model: 911 sc; Year: 1980; Body Type: Convertible; Total Mileage: 43,000 on rebuilt;

This is an update on my previous question on rough running in cold orafter sitting for 8 or more hours. I checked all that you mentioned andthe problem is still there. I have two questions:1) Why does it clear up after 5 mins of running?2) Does the valve in the black air box have anything to do with it? Thevalve blew off one time when the car backfired and I glued it back.

1980 911SC Rough Running When Cold

Vehicle Information: Model: 911 sc ; Year: 1980; Body Type: Convertible; Total Mileage: n/a;

I have a 1980 911SC that has a rough running problem--the idle is up anddown and when I take off from drive way the car bucks and will not goover 2500 rpm. The thing I know is that it seems to happen in colderweather and after about 5 -10 mins of driving its almost perfect. You canrev thecar, with the clutch disengaged and it revs fine up to 6500 rpms, but assoon as you engage the clutch, the engine runs poorly (as if it isrunning on 3 cylinders with a little dark smoke).

1983 911SC Black Oil When Drained

Vehicle Information: Model: 911sc; Year: 1983; Body Type: Coupe; Total Mileage: 118,000;

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