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Registered User
Join Date: Aug 2014
Location: ireland
Posts: 16
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Misfire
My on going saga. I had an oil change done on my 82 911sc and too much oil was put in. Smoke everywhere. I drained some out and took it for a thrash all seemed to clear. Everything went well for a bit than after a short drive I tried to restart and bang backfire and blew airbox. Dropped engine and replaced airbox and fitted fitted pop off valve as per suggestions and all inlet sleeves I am pretty sure there are no leaks and the mixture is ok its not backfiring however it now seems to be misfiring and generally running like a tractor Prior to the oil overfill the car was running sweetly now it is awful.It feels as it want to getup and go but it has no pull more like a shudder when taking off. Has anyone any ideas
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10-13-2015, 06:29 AM
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Registered
Join Date: Apr 2005
Location: outta here
Posts: 53,236
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You might start with cleaning the remaining oil residue out of the intake and changing the spark plugs. You also want to be sure the oil level is correct now. I don't know if "draining some out" actually got the oil quantity to the correct level.
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10-13-2015, 06:33 AM
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