348 Engine blew 367 days after last major... | Page 2 | FerrariChat

348 Engine blew 367 days after last major...

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

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  1. steved033

    steved033 F1 Veteran
    Owner Silver Subscribed

    Apr 12, 2017
    7,672
    Atlanta, GA
    Full Name:
    Steve D.
    they DID put oil back in, right?

    sjd
     
  2. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    5,561
    Central NJ
    Full Name:
    Dominick
    My bet is the tensioner froze

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

    axarunner Karting

    Sep 8, 2019
    97
    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
     
  4. KevZep

    KevZep Formula Junior

    Feb 17, 2020
    563
    New Zealand
    Full Name:
    Kevin Bennett
    Oil pressure was normal according to the OP.
     
  5. INRange

    INRange F1 Veteran
    Silver Subscribed

    Jan 27, 2014
    9,992
    Virginia/Florida/Caymans
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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.
     
    steved033 likes this.
  6. Miltonian

    Miltonian F1 Veteran

    Dec 11, 2002
    5,966
    Milton, Wash.
    Full Name:
    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.
     
  7. johnk...

    johnk... F1 World Champ
    Owner

    Jun 11, 2004
    10,625
    CT
    Full Name:
    John Kreskovsky
    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?
     
  8. ghardt

    ghardt Formula 3

    Apr 18, 2004
    1,259
    Texas
    Full Name:
    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.
     
  9. ghardt

    ghardt Formula 3

    Apr 18, 2004
    1,259
    Texas
    Full Name:
    Jerry
  10. bjwhite

    bjwhite F1 Rookie

    Mar 17, 2006
    4,673
    Seattle, WA
    Full Name:
    Brian White
    It doesn't sound this original poster knows any answers to any of the technical questions here.
     
    krazykarguy and Targatime like this.
  11. Ferrarium

    Ferrarium F1 Veteran
    Rossa Subscribed

    Jul 28, 2018
    5,624
    Central NJ
    Full Name:
    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
     
  12. axarunner

    axarunner Karting

    Sep 8, 2019
    97
    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
     
  13. INRange

    INRange F1 Veteran
    Silver Subscribed

    Jan 27, 2014
    9,992
    Virginia/Florida/Caymans
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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.
     
    axarunner and flash32 like this.
  14. allandwf

    allandwf Formula Junior

    Aug 27, 2011
    267
    Scotland UK
    Let us know what siezed causing it to lose the teeth, some or all the teeth?
     
    axarunner likes this.
  15. POLO35

    POLO35 Formula Junior

    Feb 21, 2005
    712
    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!
     
    INRange likes this.
  16. SoCal1

    SoCal1 F1 Veteran
    Owner

    Jun 14, 2011
    8,562
    SoCal LA/OC/New Mexico
    Full Name:
    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
     
    axarunner likes this.
  17. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    12,661
    San Carlos, CA
    Full Name:
    Mitchell Le
    We're all just guessing. Let the mechanic do his job. When he is done, we will know.
     
    2NA, axarunner, Pangea and 1 other person like this.
  18. emac

    emac Formula Junior
    Silver Subscribed

    Sep 14, 2014
    851
    upstate SC
    Full Name:
    ernest
    That would be boring....much more fun to speculate, point fingers, and cancel people!
     
    axarunner likes this.
  19. Ferrarium

    Ferrarium F1 Veteran
    Rossa Subscribed

    Jul 28, 2018
    5,624
    Central NJ
    Full Name:
    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
     
  20. desmomini

    desmomini F1 Rookie
    Owner Rossa Subscribed

    Nov 18, 2003
    3,914
    Upstate SC
    Full Name:
    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!
     
    Challenge, axarunner and Bertil like this.
  21. AceMaster

    AceMaster Three Time F1 World Champ

    Feb 6, 2009
    34,548
    Ontario, Canada
    Full Name:
    Mike
    Repair it and keep it
     
    Ferraripilot and axarunner like this.
  22. POLO35

    POLO35 Formula Junior

    Feb 21, 2005
    712
    Treasure Coast Florida
    Full Name:
    MATT
    Wait for damage report....repair or replace depending on damage
     
    axarunner likes this.
  23. 26street

    26street Formula Junior

    Jan 30, 2021
    343
    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



    Sent from my iPhone using FerrariChat.com mobile app
     
    axarunner likes this.
  24. crinoid

    crinoid F1 Veteran
    Silver Subscribed

    Apr 2, 2005
    9,414
    Full Name:
    LaCrinoid
    You could go crazy and put a F430 engine or something.
     
    axarunner likes this.
  25. wilhit10

    wilhit10 Rookie

    Feb 18, 2004
    43
    axarunner and crinoid like this.

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