News

Has this happened to you?

Discussion in '348/355' started by Night life, May 4, 2009.

  1. Night life

    Night life F1 Veteran
    Rossa Subscribed

    Dec 1, 2007
    6,649
    The city that rhymes with fun in Canada
    Full Name:
    Roberto Giannini
    Driving on the weekend the car is running perfect, stop at a light go to take off and I heard a bang then loud popping sound and loss of power...(I peed my pants a little.lol.)

    Pulled over open engine (fearing the worst) look couldn't find anything at first then notice that one of the plug wires was popped off???? I refit and re start, same thing except this time the plug wire and plug were blown out as well????

    Call my mech he knew what the problem was he said that plugs heat up and cool down at different temp than the housing and some times they loosen off. He showed up with a new plug refit and voilà she ran perfect. But he noticed a slight ticking noise so we checked the rest of the plugs and 6 out of 8 were loose. We re tighten and no more ticking and runs perfect PHEW!

    Has this happened to anyone else?
     
  2. To remove this ad click here.

  3. Marco Bussadori

    Marco Bussadori Formula Junior

    Aug 6, 2007
    430
    London
    Full Name:
    Marco Bussadori
    If you are using the specified plgs and tightened them to spec, eg. finger tight plus 3/4 turn, they will never "pop" off... If you had 6 of 8 loose, someone forgot to tighten them at the last service.

    Glad the problem was a 10 minute fix at the cost of a wrench.
     
  4. PAP 348

    PAP 348 Moderator
    Moderator Owner

    Dec 10, 2005
    86,834
    Mount Isa, Australia
    Full Name:
    Pap

    Good to hear it was an easy fix Roberto! :):)

    Im with Marco, I reckon they were not tightened properly last service. :):)

    Has never happened to me, or any of the cars I have owned. But, I have seen it many times before. The "backyard" mechanic usually replaces them and leaves them loose. :p:p

    Not sure what happened in your case, but at least no harm was done. :):)
     
  5. mags355

    mags355 Karting

    Oct 29, 2007
    70
    Sydney
    Full Name:
    maged
    seems your mechanic new the problem quick smart. (im not so convinced about his reason to why it happened)
    maybe he forgot to tighten them up last time.
     
  6. mseals

    mseals Two Time F1 World Champ
    Lifetime Rossa Owner

    Sep 9, 2007
    24,468
    Kuwait
    Full Name:
    Mike Seals
    What did he charge you for the 'service call'???

    Maybe he has a retirement plan that no one else knows about!

    :D

    Mike in Kuwait
     
  7. To remove this ad click here.

  8. 285ferrari

    285ferrari Two Time F1 World Champ
    Sponsor

    Sep 11, 2004
    20,002
    Southern Md
    Full Name:
    Robbie
    Glad it was minor--I wouldn't crapped myself at first also....
     
  9. saw1998

    saw1998 F1 Veteran

    Jun 8, 2008
    8,237
    San Antonio, Texas
    Full Name:
    Scott
    I would have had to be hospitalized! :)
     
  10. Joe G.

    Joe G. Formula 3
    BANNED

    Dec 9, 2003
    1,077
    Los Angeles
    Full Name:
    Joe Gazzani
    + uno
     
  11. All ON U

    All ON U Formula Junior

    Feb 25, 2005
    334
    London, UK
    Full Name:
    Sonu
    That happened to me on my old F355.... basically they were left loose from the last service !! i crapped myself thinking ohhh noooooo...... what has gone wrong !! called the dealer and he immediately sent someone out and it was a quick fix !! Now I always ask them after a service if they have been tightened.
     
  12. To remove this ad click here.

  13. James-NZ

    James-NZ F1 Veteran

    Jun 26, 2007
    5,760
    Hamilton, NewZealand
    Full Name:
    James
    Wow, I think I may have needed heart medication after that!

    Glad it was easy Roberto, I hope there was no damage to the thread in the head. I agree with everyone else here, I have never had this sort of thing happen in any of my cars, a correctly tightened spark plug will not come loose by its self in my experence.
     
  14. rbellezza

    rbellezza F1 Rookie
    Silver Subscribed

    Jun 18, 2008
    2,727
    Henderson, NV
    Full Name:
    Roberto Bellezza
    Glad to hear it was a simple fix .... and thank you for your advice about the floor mats, I just put the order in, let me know about the ashtray flags when you can.
    Thanks again Roberto.
    ..... the other Roberto
     
  15. Cavallino Aficionado

    Oct 3, 2006
    1,992
    Lk. Tapps/Buckley WA
    Full Name:
    Brian
    Phew, glad it was an easy fix Roberto. I had a buddy that this happened to a couple times. Yes, a COUPLE! Turns out he did the work himself and used some sort of liquid wrench lube to get them off the first time and voila- they "got themselves off"!
     
  16. Night life

    Night life F1 Veteran
    Rossa Subscribed

    Dec 1, 2007
    6,649
    The city that rhymes with fun in Canada
    Full Name:
    Roberto Giannini
    #13 Night life, May 5, 2009
    Last edited: May 5, 2009
    HA ha ha NICE..;)

    He was gracious enough to do it for $100 instead of $200 but wants to do an engine out to make sure.











    HA HA HA JUST KIDDING..:p of course he did it for free Mike he absolutely loves this car and says so to all the Lambo boys..:D

    Yes I was so glad it was nothing major.

    There was no thread damage but there was heart failure on my part lol. I know they have products for plugs to prevent this I have seen it so it must happen I just never heard of it on here in all my viewing nor has it ever happened to me with any of my vehicles.

    Oh well we will log it as a first for the Brotherhood and something that should be included in routine maintenance checks.
     
  17. PSk

    PSk F1 World Champ

    Nov 20, 2002
    17,673
    Tauranga, NZ
    Full Name:
    Pete
    It's called a torque wrench :).

    Nobody should tighten a plug in by guess and the supposed rough whatever extra of a turn ... use a torque wrench and set to the correct torque. 21 ft/lbs in an alloy head and 25 for a cast iron one is what my father always said to me.
    Pete
     
  18. FandLcars

    FandLcars F1 Rookie

    Aug 6, 2006
    3,043
    Tempe, Az
    Full Name:
    Rick Schumm
    #15 FandLcars, May 5, 2009
    Last edited: May 5, 2009
    +1 And re-checking during routine services is also a good idea, just to be sure. Only takes a couple minutes. 348 WSM shows 16 N-M for plug torque.
     
  19. Night life

    Night life F1 Veteran
    Rossa Subscribed

    Dec 1, 2007
    6,649
    The city that rhymes with fun in Canada
    Full Name:
    Roberto Giannini
    Thanks just bought a torque wrench a month ago I will do another check on all my plugs, are we certain about the 21lbs setting or are you guessing..lol.would hate to over tighten.

    If someone knows the proper setting please feel free.
     
  20. PSk

    PSk F1 World Champ

    Nov 20, 2002
    17,673
    Tauranga, NZ
    Full Name:
    Pete
    Would be best to confirm ... my memory might be wrong :).

    Pete
     
  21. FandLcars

    FandLcars F1 Rookie

    Aug 6, 2006
    3,043
    Tempe, Az
    Full Name:
    Rick Schumm
    The 16N-M on page B-88 of the 348 WSM that I previously mentioned is just under 12ft-lbs. I would not feel comfortable at all with 21 ftlbs... that may be applicable to older plugs with larger threads.
     
  22. PSk

    PSk F1 World Champ

    Nov 20, 2002
    17,673
    Tauranga, NZ
    Full Name:
    Pete
    Sorry yes I was talking older large plugs. As FandLcars says, use what the manual says :).

    Pete
     
  23. Night life

    Night life F1 Veteran
    Rossa Subscribed

    Dec 1, 2007
    6,649
    The city that rhymes with fun in Canada
    Full Name:
    Roberto Giannini
    Thanks Rick and Pete will check...
     
  24. dkilka

    dkilka Formula Junior

    May 8, 2007
    282
    Australia
    Same thing happened to me back in the UK with my 1992 348tb. Popped N0 7 cylinder HT lead off the plug. The plug was also loose! Crept home on 7 cylinders and discovered the issue once I got home to my garage.

    Sounds like you have a good mechanic if he diagnosed it over the phone!
     
  25. Night life

    Night life F1 Veteran
    Rossa Subscribed

    Dec 1, 2007
    6,649
    The city that rhymes with fun in Canada
    Full Name:
    Roberto Giannini
    Ya he is pretty good, plus he does free delivery lol

    Mine was cylinder #8
     

Share This Page