white smoke on starting (fiat 2.3)

Discussion in 'Tech/Mech General' started by cranky, Feb 11, 2015.

  1. cranky

    cranky Funster

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    Had a few days away last week and, having been parked up for 3 days, when i started up, clouds of white smoke and engine running lumpy. after a few minutes as it warmed up it all settled down and was fine on the drive home. A friend suggested fuel filter as apparently all diesel now contains a percentage of bio diesel which tends to block the filter much quicker than before. It is going in for service/mot anyway but has anyone had similiar experience?
     
  2. Snowbird

    Snowbird Funster Life Member

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    What did the white smoke smell of. Was it a diesel smell ?.
     
  3. Lenny HB

    Lenny HB Funster

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    Water in the fuel, have you checked the fuel filter drain?
     
  4. Fireman Sam

    Fireman Sam Funster

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    New pope elected?
     
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  5. cranky

    cranky Funster

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    I didn't notice much of a smell at all. ( not from the smoke anyway as thoughts of huge garage bills flashed through my mind:D)
     
  6. cranky

    cranky Funster

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    No. will do. thanks
     
  7. MikeD

    MikeD Funster

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    White smoke is usually something to do with water. If it ran ok when you parked it up I would agree with the other posts. (y)
     
  8. scotjimland

    scotjimland Funster Life Member

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    Copied from net.. (I'm not that clever)

    White smoke is caused by raw, unburnt fuel passing into the exhaust stream. Common causes include ..

    • Incorrect fuel injection timing
    • Defective fuel injectors
    • Low cylinder compression
    Low cylinder compression may be caused by leaking valves, sticking piston rings, ring wear, cylinder wear, or cylinder glaze.

    When white smoke occurs at cold start and then disappears as the engine warms up, the most common causes are fouling deposits around piston rings and/or cylinder glazing.

    Continuous evidence of white smoke indicates a mechanical defect, or incorrect fuel timing.

    Water entering combustion spaces will also create white smoke. Faulty head gaskets and cracked cylinder heads or blocks are a common cause of water entry .. unfortunately, expensive mechanical repair is the only proper solution here
     
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  9. maxsdad

    maxsdad Funster

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    I would go with the cracked head or block/head gasket theory, black smoke is usually sign of overfueling
    Check the water level in the radiator, not the plastic header tank this can be full but no water in the radiator, what you really need is block test where a container filled with chemical is connected to the water filler neck, when the engine is run from cold the chemical will change colour if it detects exhaust gases in the water I have one here but it's no good 300 miles away is is, hope it turns out to be somthing simple though
     
  10. jockaneezer

    jockaneezer Funster

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    With the cold temperatures, it might just be a dodgy heater plug for a particular cylinder letting unburned fuel through till the cylinder warms up. Head gasket problems would still be putting out white smoke once the engine was warm. What's it like when you start it from warm ?
     
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  11. cranky

    cranky Funster

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    glo plug was my first thought. It was fine once warm and re started fine when warm.
     
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  12. Enword

    Enword Funster

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    Agree with jockaneezer, If it ran lumpy then clean & starts fine when warm Id check glow plugs first, sometimes at first they don't break down enough to register on the warning light but don't heat up enough. which would cause on burnt fuel to smoke white. Always look at the simple stuff first. Also dirty injector will dribble & not spray (y)
     
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  13. PeteH

    PeteH Funster

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    Star with the cheap things like test and replace? glo plugs? (I used a Jump lead across the battery to test once removed and a pair of leather gloves!! Bloody hot!!) I had similar on a 6.4 GM TD with just a broken wire! The "Tags" on certain glo plugs corrode off. (Spade type terminals). Any "nasty" rumblings?. Overfueling COLD can produce white smoke, Unburnt, Hot tends to produce black Part burnt. IF your not losing water then it is unlikely to be the cylinder head. I once ran an old Peugeot 205 for 2 years just topping up a couple of times a week though!!!
     
  14. Wildbill

    Wildbill Funster

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    as petterH but it could just be it was very cold waxing in the disale if it dose not do it after five or six HR lay up its nothing to worry abut
    BILL
     
  15. cranky

    cranky Funster

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    Thanks for all your suggestions. Will keep you posted when I find out what it is.
     
  16. WynandJean

    WynandJean Funster

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    Damn., I was going to say that but you beat me to it.

    Wyn
     
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  17. joncris

    joncris Read Only Funster

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    Check your coolant and it it has a milky greyish residue around the filler cap it could be a failed head gasket
     
  18. Larby

    Larby Funster

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    My son has a garage in Sible Hedingham. I can arrange a coolant system pressure test, a chemical "sniff" test all for free for a Funster. Not sure where you are in Essex.
    Are you using coolant?
     
  19. Techno

    Techno Funster Life Member

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  20. gloworm

    gloworm Funster

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    Cant believe the scaremongering, mine sometimes does the exact same thing on start up if all cylinders dont fire up there will be unburnt fuel hence the white smoke.

    Eric
     
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