Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: johnrobert on December 11, 2007, 07:12:29 PM

Title: Black smoke
Post by: johnrobert on December 11, 2007, 07:12:29 PM
I seem to get a small puff of black smoke out exhaust in the morning.Could you please tell me what is causing this.Thank you.
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Post by: Bubba on December 11, 2007, 08:49:30 PM
do you start it with ya foot to the floor
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Post by: johnrobert on December 11, 2007, 09:37:12 PM
NO.
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Post by: Ric Jacques on December 11, 2007, 09:57:53 PM
No need to shout !!  :D
Title: Re: Black smoke
Post by: tim_aka_tim on December 11, 2007, 10:07:49 PM
Quote from: "johnrobert"
I seem to get a small puff of black smoke out exhaust in the morning.Could you please tell me what is causing this.Thank you.


The diesel engine under the bonnet. Most diesels smoke when you start them, especially older ones.

If it's not starting easily in this cold, then you might have a glowplug or two out, that will make it smoke more on start.
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Post by: dtooth on December 12, 2007, 04:41:41 PM
black smoke in a diesel is over fueling normally.

see minicabs pulling away   :dro_smoke
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Post by: johnrobert on December 12, 2007, 04:54:39 PM
Thank you all.
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Post by: tag on December 12, 2007, 05:02:47 PM
Black smoke is as Dtooth said,  you can see it on on new diesel cars when they put their foot down,  white smoke is un burnt fuel, you may have a dodgy injector, thats dripping into one of the cylinders when it's stood.............
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Post by: Dave69 on December 13, 2007, 10:02:35 PM
black smoke is unburnt diesel white smoke is too much air in the system i.e air leak in the air intake. blue smoke is burnt oil. i was always concerned about exhaust smoke when i had my diesel untill i saw modern diesels and what they kick out, then i wasn't bothered at all