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348 Engine blew 367 days after last major...

Discussion in '348/355' started by axarunner, Mar 10, 2021.

  1. steved033

    steved033 F1 Rookie
    Silver Subscribed Owner

    Apr 12, 2017
    3,391
    Atlanta, GA
    Full Name:
    Steve D.
    they DID put oil back in, right?

    sjd
     
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  3. flash32

    flash32 Formula 3

    Aug 22, 2008
    2,452
    Central NJ
    Full Name:
    Dominick
    My bet is the tensioner froze

    Sent from my moto g(7) using Tapatalk
     
  4. axarunner

    axarunner Karting

    Sep 8, 2019
    75
    Glen Ridge, NJ
    Full Name:
    Dan Murphy
    You mean that these cars don’t rev to 12,000 rpm? Seriously, I’ve been a proper caretaker of this TS. No expense has been sparred in the mechanical well being of the car. Despite that Murphy’s Law intervened.




    Sent from my iPhone using FerrariChat
     
  5. KevZep

    KevZep Formula Junior

    Feb 17, 2020
    253
    New Zealand
    Full Name:
    Kevin Bennett
    Oil pressure was normal according to the OP.
     
  6. INRange

    INRange F1 Veteran
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    Jan 27, 2014
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    JD
    Or....how much oil did they put in? Running on half the oil would give you pressure off and on depending on the rpms.
     
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  8. Miltonian

    Miltonian F1 Veteran

    Dec 11, 2002
    5,964
    Milton, Wash.
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    Jeff B.
    Three possibilities come to mind:

    1) As KevZep suggests in post #25, we have seen issues in the past where the "fences" on the camshaft drive pulleys have come off when the spot welds fail, allowing the belt to crawl off the pulley. Instant failure with no warning.

    2) If your engine has the black plastic timing belt cover, we have seen these covers crack and fail, most commonly when the cover is being removed or re-installed. If a broken piece of the cover falls into the gear/belt pocket, it could jam the belt. The aluminum belt covers shouldn't have this trouble spot.

    3) Did you actually see the old timing belt after the service? A NEW belt should have about 0% chance of failure on its own. If the original belt was still in there (due to laziness or really shoddy business) it wouldn't be a surprise if it didn't last long after the service. I believe these belts have a production date inked onto them, and they shouldn't be more than five years old when installed during the service.
     
  9. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,688
    New England/FL
    One other issue that could account for the teeth being stripped of the belt. Again, could be associated with oil change. If oil was spilled on the belt the result can be a weakening of the teeth at the root. Then varying torque applied to the belt can shear the teeth. This is most common at the crank pulley where the shear force applied to the teeth is usually the greatest.

    Is there any sign of oil contamination of the belt?
     
  10. ghardt

    ghardt Formula 3
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    Apr 18, 2004
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    Jerry
    I’ve seen reasonable used motors selling for 5-7.5K. Used motor is the least painful thing to do. Gonna cost a lot more to rebuild your existing motor and won’t improve the value of the car. Then sell it.
     
  11. ghardt

    ghardt Formula 3
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  13. bjwhite

    bjwhite F1 Rookie

    Mar 17, 2006
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    Brian White
    It doesn't sound this original poster knows any answers to any of the technical questions here.
     
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  14. Ferrarium

    Ferrarium F1 Rookie
    Rossa Subscribed

    Jul 28, 2018
    3,002
    Central NJ
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    Eric
    How many miles since major service?

    If tensioners were done it could be those failing, the 360 oil pump chain tensioner update requires a tad more extra care.

    Scary stuff definitely sorry to hear about your luck.

    Sent using FerrariChat.com mobile app
     
  15. axarunner

    axarunner Karting

    Sep 8, 2019
    75
    Glen Ridge, NJ
    Full Name:
    Dan Murphy
    10 quarts of AGIP with a video verification. Thanks for your concern.


    Sent from my iPhone using FerrariChat
     
  16. INRange

    INRange F1 Veteran
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    Jan 27, 2014
    5,188
    Virginia
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    JD
    It is just speculation now. Have the engine torn down and find out what the problem was. It is worth the expense to get the answer then you can decide if you want to repair it or put the car and engine on BAT.
     
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  17. allandwf

    allandwf Karting

    Aug 27, 2011
    222
    Scotland UK
    Let us know what siezed causing it to lose the teeth, some or all the teeth?
     
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  18. POLO35

    POLO35 Formula Junior

    Feb 21, 2005
    475
    Treasure Coast Florida
    Full Name:
    MATT
    You never know with these cars. I remember years ago a guy in the 328 section had just performed a major and popped a belt. After investigating, the cause was a coin had somehow flipped up from the road or fallen down into the belt housing and caused the belt to slip and strip. They actually found the coin embedded in the belt face and bent into a curve shape!
     
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  19. SoCal1

    SoCal1 F1 Veteran
    Owner

    Jun 14, 2011
    8,236
    SoCal LA/OC
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    Tim Dee
    Cars like 100 years old stuff happens. Belt fences let go anything from the road can kick up
    Very sorry used motor seems like a good deal
     
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  20. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    10,667
    San Carlos, CA
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    Mitchell Le
    We're all just guessing. Let the mechanic do his job. When he is done, we will know.
     
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  21. emac

    emac Formula Junior
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    Sep 14, 2014
    781
    upstate SC
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    ernest
    That would be boring....much more fun to speculate, point fingers, and cancel people!
     
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  22. Ferrarium

    Ferrarium F1 Rookie
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    Jul 28, 2018
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    Central NJ
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    Eric
    The fundamental problem with rebuilds is there's no guarantee the guy who rebuilds it will do that right either.

    Another guy out here had a 355 built two weeks later but popped again he's having to have it built again.

    You just never know, I have no faith in rebuilders, I'd probably take it to to a Ferrari dealer and have them do it because there you will get a warranty.

    Sent using FerrariChat.com mobile app
     
  23. desmomini

    desmomini F1 Rookie
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    Nov 18, 2003
    3,446
    Upstate SC
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    Jeff
    Not sure why no one is answering the original question.

    My vote is to have it repaired, then keep or sell it based on how you feel at the time.

    Sorry this happened!
     
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  24. AceMaster

    AceMaster Three Time F1 World Champ

    Feb 6, 2009
    31,039
    Calling a penalty
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    Mike
    Repair it and keep it
     
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  25. POLO35

    POLO35 Formula Junior

    Feb 21, 2005
    475
    Treasure Coast Florida
    Full Name:
    MATT
    Wait for damage report....repair or replace depending on damage
     
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  26. 26street

    26street Karting

    Jan 30, 2021
    82
    Westchester New York
    Full Name:
    Mark k
    If you really like the car repair it either a engine swap or rebuild if you feel nervous then sale it and find something else not saying anything else you buy outside of new will not fail either that’s the chance we take with used


    If it was me in this position I would swap the engine (after a service was done) and I would go over the old one to see where the failure happened and possibly rebuild it keep it or sale it
    No one can predict internal failures but good servicing will reveal potential failures and that’s why it’s so important to have qualified experience tech who really know what to look for when servicing not just going through the motions

    Sad truth nowadays is that there’s not a lot of real qualified techs around and not a lot of younger kids are interested in the trade leaving a huge void I know some dealer managers are always complaining about this most of there too guys leave and start their own shops or move on to our brands for more money opportunities

    Anyway good luck on what ever you plan on



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  27. crinoid

    crinoid F1 Veteran
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    Apr 2, 2005
    8,128
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    LaCrinoid
    You could go crazy and put a F430 engine or something.
     
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  28. wilhit10

    wilhit10 Rookie

    Feb 18, 2004
    31
    axarunner and crinoid like this.

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