TwinTurbo.NET: Nissan 300ZX forum - blue smoke, rough idle, lots of watery soot :(
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Subject blue smoke, rough idle, lots of watery soot :(
     
Posted by eyes007 on April 24, 2008 at 10:44 PM
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Message Last week i took the Z out of winter storage and it was such a nice day i decided to go for joy ride.. I let the car warm up for 15-20 min and headed out on the highway. Boost level was set on low and after about a 10 minute drive on the highway i pulled off at the first stop light switch the boost to high and opened her a bit 14-15lbs.. Car drove fine all day. Yesterday I started it up and noticed the car was idling fairly rough at 1500-1700 rpm's and there was quite a bit of smoke more so than usual coming out of the exhaust. As well i noticed quite a large amount of soot after a few revs on the ground under the exhaust pipes and appaered to be fairly watery.. i drove it around and seemed to be a bit sluggish but not running to badly. Tonight i went to start it up to check it out and noticed after about 4-5 minutes the idle did not stabilize at 1000rpms as it usually does after a few minutes. It stayed at 1700rpms' idling a bit on the rough side and then the blue tinge smoke started barreling out and after a few revs the watery soot was sprayed out of the exhaust. My Z has not done this before and usually runs very well. Any ideas on what the problem may be? Did i push it a bit to hard too quick after winter storage which could of caused possible damege to any valves?

     
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