Reply With QuoteFirst check very carefully that it isn't actually black smoke. If it is black, then that is what it is supposed to do.
Other colours are a bit more of a worry.
Master
SubscriberMy defender 300tdi diesel smokes on start up, every time it starts, hot or cold, it doesn't smoke when running. I'd call it white smoke. What should i be checking...cheers.
ForumSage
SupporterFirst check very carefully that it isn't actually black smoke. If it is black, then that is what it is supposed to do.
Other colours are a bit more of a worry.
1973 Series III LWB 1983 - 2006
1998 300 Tdi Defender Trayback 2006 - often fitted with a Trayon slide-on camper.
Wizard
SubscriberWhite smoke is I think usually water. Was with my diesel Delica. Gray smoke is oil or just a bit to much fuel. Black smoke is to much fuel. Any other colour and it`s time to give up the party drugs.
Cheers Hall
Fossicker
Defender 300tdi Diesel – Black Smoke on Start Up!
Lots of information back in 2010 on this very subject – Black Smoke
d-90.com/forum/showthread.php't=26438
Hope that helps…
Master
My mechanic says the same, they are supposed to do it, Remember its a british diesel not a japper, they are designed different.
RoverLord
black smoke is normal...
its to do with the governor.
very very basically
when the engine is stationary there is no resistance to the full fuel spring so the engine gets full fuel for start up, theres no dynamic advance wound in so injection is happening later than normal for the first couple of firings.. as the engine speeds up the governor flyweights take over and bring everything back to idle (or whatever engine RPM is being requested by the throttle input)
Dave
"In a Landrover the other vehicle is your crumple zone."
For spelling call Rogets, for mechanicing call me.
Fozzy, 2.25D SIII Ex DCA Ute
TdiautoManual d1 (gave it to the Mupion)
Archaeoptersix 1990 6x6 dual cab(This things staying)
If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
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Master
Subscriberthanks for replys, just bought it and really don't need head problems. Got a disco 2 thats had the top end rebuilt and that really did not impress SWMBO. Divorce material. Another explanation on a diferent forum...
It's a mechanical controlled injection pump that is at min fuel-delivery during start up. As the starter motor brings the engine only to a speed that is below normal idle the fuel quantitiy is too high during the first revs (or in other words, it's not enough air for the injected fuel). This results in black smoke...
My 4bd1 normally asperated diesel only blows smoke when being pushed real hard so was a wee bit worried...thanx for replys and saving the marriage
Fossicker
should be a nice puff of black smoke on start up if white smoke comes out for first 100yrds or so the fuel pump has a diagram that gets stuck and it means recon fuel pump about $1200
Wizard
SubscriberBlack smoke is incomplete combustion
And white smoke is no combustion at all.
Have a look at this, some good simple explanations.
Diesel Smoke tells YOU a Story…
Cheers,
Paul.
Paul.
77 series3 (sold)
95 300Tdi Ute (sold)
2003 XTREME Td5
I thought I was wrong once, but I was mistaken.
Moderator
and black smoke is entirely normal at startup for a Tdi, they all do it, as Dave explains above.Originally Posted by harro
Black smoke is incomplete combustion
And white smoke is no combustion at all.
Have a look at this, some good simple explanations
Diesel Smoke tells YOU a Story…
Cheers,
Paul.
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