Ferrari Testarossa black smoke | FerrariChat

Ferrari Testarossa black smoke

Discussion in 'Technical Q&A' started by John davis, Nov 25, 2019.

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  1. John davis

    John davis Rookie

    Nov 25, 2019
    8
    Full Name:
    John davis
    Really hoping someone can help ,just bought a Ferrari Testarossa 1991 right hand drive
    On driving back 140 miles I let the fuel run a little low I filled the car up and it started bellowing out thick black smoke no idea why
    The car runs fine and ticks over fine
    And it didn’t smoke at all for the first 100 miles
    Smoke is mainly from the left side tail pipe
    Any help would be great
     
  2. JoeTSI

    JoeTSI Formula 3
    Silver Subscribed

    Dec 16, 2015
    1,433
    Huntsville, AL
    Full Name:
    Joe K.
    Sounds like it is running rich.
     
  3. Reid

    Reid Karting

    May 18, 2018
    59
    Vancouver Canada
    Full Name:
    Reid Fox
    you didn't fill it with Diesel did you??
     
  4. John davis

    John davis Rookie

    Nov 25, 2019
    8
    Full Name:
    John davis
    No mate
     
  5. John davis

    John davis Rookie

    Nov 25, 2019
    8
    Full Name:
    John davis
    I thought so just surprised how much smoke is there any thing to adjust
     
  6. Reid

    Reid Karting

    May 18, 2018
    59
    Vancouver Canada
    Full Name:
    Reid Fox
    Fuel stations make mistakes too it sounds like this started after refuelling I would drain some fuel into a glass jar let it settle and take a very close look at it
     
    ChipG likes this.
  7. Reid

    Reid Karting

    May 18, 2018
    59
    Vancouver Canada
    Full Name:
    Reid Fox
    Any CEL light? Black smoke on one side assuming the fuel is not contaminated could be extremely rich running or burning massive amounts of oil on that side - make sure engine oil is full
     
  8. theunissenguido

    theunissenguido Formula 3
    Owner Silver Subscribed

    Jan 21, 2004
    2,402
    Argent/Brasil
    Full Name:
    Guido
    Or plunjer in one of the fueldistributors got stuck in open position and is running to rich on that side.
    Guido
     
    Reid likes this.
  9. John davis

    John davis Rookie

    Nov 25, 2019
    8
    Full Name:
    John davis
    No lights on mate
     
  10. John davis

    John davis Rookie

    Nov 25, 2019
    8
    Full Name:
    John davis
    No they both are moving freely
     
  11. John davis

    John davis Rookie

    Nov 25, 2019
    8
    Full Name:
    John davis
    Engine oil is also fine mate
     
  12. ChipG

    ChipG Formula 3

    May 26, 2011
    1,727
    Santa Monica, CA
    I'd siphon all the fuel out and start with a new tank of fuel.
     
    Reid likes this.
  13. John davis

    John davis Rookie

    Nov 25, 2019
    8
    Full Name:
    John davis
    All sorted tiny turn on the screw that adjusts the height of the air sensor plate
     
    theunissenguido likes this.
  14. theunissenguido

    theunissenguido Formula 3
    Owner Silver Subscribed

    Jan 21, 2004
    2,402
    Argent/Brasil
    Full Name:
    Guido
    Can you check also if your brake fluid reservoir is still plenty !
    Guido
     
  15. John davis

    John davis Rookie

    Nov 25, 2019
    8
    Full Name:
    John davis
    Not solved after all not running on half the engine have spark and have fuel
     
  16. theunissenguido

    theunissenguido Formula 3
    Owner Silver Subscribed

    Jan 21, 2004
    2,402
    Argent/Brasil
    Full Name:
    Guido
    check first if a cold start valve is leaking, spark plugs are still dry, plunger fuel distributor is leaking, your engine is not sucking brake fluid via vacuum line, then have to start looking for leaks in vacuum sistem,....testing quantity fuel pump delivery, quantity of fuel coming out injectors...take your time !
    Guido
     
  17. jgmblair

    jgmblair Formula Junior
    Silver Subscribed

    May 27, 2010
    735
    Winnipeg, MB Canada
    Full Name:
    Jeff Blair
    #17 jgmblair, Dec 6, 2019
    Last edited: Dec 6, 2019
    Hello John, congrats on the purchase of your car. Repost your question in the Boxer/TR/M section as you will get more of a response over there. I would suggest you introduce yourself by filling out your profile and make sure in your post you identify your engine family. Do you have any documentation for your car? Work shop manual? Electrical diagrams? If not shoot me a PM and I will send you a link to download some info. A word of advise! STOP turning that mixture screw ;) You really need to find out why that bank is not functioning. If it ran well for the first 100 miles you drove it I wouldn't suspect the mixture screw would be the issue. As Guido alluded to, you need to test what the fuel delivery from the pump and from the injectors. The workshop manual clearly describes the tests to do this.
     
    Reid likes this.
  18. Wingnut

    Wingnut Karting

    Feb 11, 2005
    138
    Corolla, NC
    John
    See my "'left bank running rich" in the Mondial forum. Worked for me.
     
  19. Reid

    Reid Karting

    May 18, 2018
    59
    Vancouver Canada
    Full Name:
    Reid Fox
    That really should be set up with a CO meter make sure its on the rich side and not on the lean side it could cost you a piston. At least look at how the plugs are burning
     

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