Is your DIESEL SMOKING !!!

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Thread: Is your DIESEL SMOKING !!!

  1. #1
    Administrator kez's Avatar
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    Is your DIESEL SMOKING !!!

    in my job they continualy send us on various courses to keep you update on mechanical and electrical issues..........not a bad thing but wish they'd leave it to the younger ones lol
    anyway here is an abstract taken from one of these courses and may be useful in evaluating probable symptoms

    The Answer is in the Smoke

    We can generally understand what is wrong with a diesel engine by the colour of smoke emitted from the exhaust. There are three basic colours - black, white and blue.
    Black Smoke

    This is due to a air to fuel ratio imbalance, either the fuel system is delivering too much fuel into the engine or there is not enough clean air (oxygen ) a few things to look for:
    • Faulty injectors (injectors need attention at about 100.000 to 120 000 miles)
    • Faulty injector pump
    • Dirty air cleaner
    • Turbocharger or intercooler faulty....inc pipe work
    • Problems within cylinder head, valves clogged up due to faulty EGR (exhaust gas recycling unit)
    White Smoke

    Normally means that the fuel injected into the cylinder is not burning correctly. The smoke will burn your eyes.
    • Engine/pump timing out
    • Fuel starvation to the pump causing the pumps timing not to operate correctly
    • Low engine compression
    • Water/petrol in the fuel
    • Turbo seal failure & coolant entering the combustion process
    Blue Smoke

    The engine is burning engine oil
    • Worn cylinders or piston rings
    • Faulty valves or valve stem seals
    • Engine over full with engine oil
    • Faulty injector pump/lift pump allowing engine oil to be mixed with the diesel
    Last edited by kez; 04-15-2013 at 10:06 AM.

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  3. #2
    Saabisti
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    Re: Is your DIESEL SMOKING !!!

    No, its on the patches!!!!!

  4. #3
    Administrator aerojon's Avatar
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    Re: Is your DIESEL SMOKING !!!

    white smoke is also turbo seal failure & coolant entering the combustion process..
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  5. #4

    Re: Is your DIESEL SMOKING !!!

    And black smoke is often down to leaky pipework on the feed from the turbo to the inlet manifold via the intercooler - lots of places for it to split, wear or come loose.

  6. #5

    Re: Is your DIESEL SMOKING !!!

    BTW, Red, white and blue smoke all at the same time means that the Red Arrows just went past.

  7. #6
    Administrator kez's Avatar
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    Re: Is your DIESEL SMOKING !!!

    Quote Originally Posted by aerojon View Post
    white smoke is also turbo seal failure & coolant entering the combustion process..
    Hi aerojon have added to list m8

    have excel document would like to insert gives more in depth reference to particular area's e.g you look at what smoke you have and symptoms and it cross refs to drop down box giving poss cause more in depth e.g turbo/wastegate etc etc
    how do i go on putting such a table into a thread...................when i try it end up all over the place m8 any ideas

  8. #7

    Re: Is your DIESEL SMOKING !!!

    I am thinking of making this a sticky but where to put it....

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  9. #8
    Administrator kez's Avatar
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    Re: Is your DIESEL SMOKING !!!

    Quote Originally Posted by tonyfisk View Post
    BTW, Red, white and blue smoke all at the same time means that the Red Arrows just went past.
    tony if i had one of those engines in my car wouldnt care what colour smoke it produced.............could be pink lol

    it does mention turbo/intercooler but will had check pipes for those not so experienced and simple thing to check

    as just said to jon have a excel sheet thats goes more in depth but cant seem to insert lol

  10. #9
    Administrator kez's Avatar
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    Re: Is your DIESEL SMOKING !!!

    Quote Originally Posted by the zohan View Post
    I am thinking of making this a sticky but where to put it....
    up to the 3 of you mate good idea though................i want to add excel document as well but could be done laters and you can add to it if you make sticky.......................maybe one in each section as applies to all varients dont know mate what you think

    just thought be useful thats y i posted in this section not just 9-3

  11. #10

    Re: Is your DIESEL SMOKING !!!

    Sorry, seem to have messed up moving this thread. will endeavour to sort it out so bare with me...

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  12. #11
    Administrator kez's Avatar
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    Re: Is your DIESEL SMOKING !!!

    Quote Originally Posted by the zohan View Post
    Sorry, seem to have messed up moving this thread. will endeavour to sort it out so bare with me...
    may be cus i was trying to edit lol at same time

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