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18 Feb 2021

Engine rough idle

A report on 911 SC engines hunting up and down 

Richard Stephens, Register Technical Advisor, reports 
If you have had your 911 SC engine hunting up and down when started from cold or it has a rough idle, then here are few thoughts about the subject. I have a 1978 model 911 SC (built June 1977), which has had this problem on cold start. I purchased it in 1993 and, in winter when it was cold, the engine hunted around a lot at first start-up. People thought I was purposely blipping the throttle to make lots of noise!

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