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Smoke on start up and engine stutter

Started by ridout, 16 August 2010, 10:08 AM

ridout

I have a 1974 280se. Ran fine for the first week replaced the alternator. Now there is a stutter in the exhaust and lack of power whilst driving cold and hot. Poor start up, smoke and feul smell on start up. The car was standing for a while and mybe ran some bad fuel through the injectors. Replaced leads,spark plugs oil and oil filter. Mechanic(not a specialist) says poor compression on the sixth cylinder. Does not burn any oil and runs well at high speed once going????Plugs look very black except the sixth one looks brown.