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Major Service Limit

Discussion in '348/355' started by RandyT, Sep 21, 2018.

  1. Cauf61

    Cauf61 Formula Junior

    Jul 12, 2016
    557
    Belgium
    Full Name:
    Patrick
    You are probably 100% right but as they are very difficult to replace/check the 200 euro extra gives me a piece of mind. :)
     
  2. vvassallo

    vvassallo F1 Veteran
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    Aug 4, 2006
    8,198
    Palos Verdes
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    Vince V
    A lot depends on your use of the car. Red line it at the track a lot and maybe you need to stick to those 5-year intervals. Those of us who drive maybe 2500 miles per year, not so much. ;) (I can see Plugzit groaning right now). I'm on the 5-6 year interval, but maybe I'll even stretch to 7 now that I have Hill bearings installed. It should be remembered that the major involves more than the belt. It's the tensioners, alternator and alternator bearing, valve lash on 348's, fuel filters and all the annual stuff we're supposed to be doing which we probably don't. ;) I think the important message is not to put it off too long but definitely do it according to a reasonable schedule. For 348 owners, don't sweat it, your engines are pretty bulletproof. For 355 guys, I'd be only a bit more diligent only because you need to stay on top of those headers and CV bearings. Remember that the greater heat generated by 355 engines does effect greater wear on heat-sensitive components.
     
  3. Ferrarium

    Ferrarium F1 Rookie
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    Jul 28, 2018
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    Eric
    Spot welding the pulley fences is far more of a concern for me.

    Good luck!
     
  4. ernie

    ernie Two Time F1 World Champ
    Lifetime Rossa Owner

    Nov 19, 2001
    22,022
    The Brickyard
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    The Bad Guy
    I went 9.5 years and around 30,000 miles on my last belt. I changed it when something broke because I wanted to see just how long it would go. What went was the water pump impeller (made out of plastic and probably the original part from the factory), both the idler and tentioner bearing (new parts that came in a yellow box with black horsies on from the first time I changed the belt) the drive pulley bearings both front and rear (original from the factory most likely), the oil pump tensioner pad and the timing chain tensioner pad (both more than likely original parts from when it left the factory), the tentioner bearing for the alternator (original from the factory my guess again), and the valve cover gaskets where leaking. The belt Itself was in decent shape, minus the skid marks from the tentioner & idler bearings going bad (there was an audible squeal when the engine first started), and it was marginally stretched. My car currently has over 86,000 miles on it. If you want to see the play-by-play of everything I did you can read my engine out thread, which can be found in the 348 DIY sticky.
     
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  5. AceMaster

    AceMaster Three Time F1 World Champ

    Feb 6, 2009
    30,671
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    Mike
    The Legend had spoken :D
     
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  6. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,087
    New England/FL
    I love these threads. :rolleyes:
     
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  7. Ferrarium

    Ferrarium F1 Rookie
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    Jul 28, 2018
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    OP has a question, some good responses, presumably the thread is not for you, why even bother posting.
     
  8. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,087
    New England/FL
    :eek: Because I do love threads like this with widely diverging opinions, which is all they are, and a little sarcastic humor is appropriate. Mitch nailed it when he said:

    I personally have no problem going 10-12 years, but I wouldn't recommend that to anyone. It's my car and I do what I want.
     
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  9. Dave rocks

    Dave rocks F1 World Champ
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    Nov 23, 2012
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    Dave Lelonek
    When you reach more than a few weeks here you will begin to understand this place ;)

    And, wait until the next GCK thread :D
     
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  10. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,087
    New England/FL
    Why, Dave, WHY!!!! My heart can't take it. LOL!
     
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  11. yelcab

    yelcab F1 World Champ
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    Nov 29, 2001
    10,171
    San Carlos, CA
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    Mitchell Le
    So you left out the most interesting fact. It is your decision to NOT let it go this long again. Let me remind you of your changing your alternator belt by the side of the road midway to Indiana.
     
  12. Ferrarium

    Ferrarium F1 Rookie
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    Jul 28, 2018
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    Eric
    Yeah... only sightly better than a DSM forum in that regard. At least the information is really good, so there is that. :)
     
  13. ernie

    ernie Two Time F1 World Champ
    Lifetime Rossa Owner

    Nov 19, 2001
    22,022
    The Brickyard
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    The Bad Guy
    Well I’m currently past the 4 year mark since that thread. The reason the alternator belt busted was, I forgot to properly tighten down the securing bolt on the front of the tensioner. D’HO!!! So the bearing got loose, the belt walked off and got shredded. Also I changed the belt at a quick lube shop. :p

    I may change the cam belt at the 7 year mark, or I may push it to 100,000 miles. Haven’t made up my mind on it yet. If it granades big whoop. Ill just rebuild it. But I don’t think it will. I beat the hell out of that engine and it takes it like a thoroughbred on the home stretch of the Kentucky Derby.
     
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  14. desmomini

    desmomini F1 Rookie
    Rossa Subscribed Owner

    Nov 18, 2003
    3,170
    Upstate SC
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    Jeff
    I arranged for my '93 to have a major when I purchased it in 2015.

    There were questions from my mechanic as to whether it was its first, ever.

    The car did 19,000 miles in 22 years.

    Most of the decade prior my purchase was apparently sitting and being shuttled from dealer to dealer.
     
  15. RandyT

    RandyT Karting

    Aug 16, 2016
    233
    Calabasas, CA
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    Randy T
    A 22 year old virgin?... Wow, that's rare.

    Lots of good info here!
    Thanks for everyone's comments.

    I think we have our answer:
    5 years as conservative
    7 years as standard
    10 years as daring
    11+ years as Russian Roulette
     
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  16. ernie

    ernie Two Time F1 World Champ
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    Nov 19, 2001
    22,022
    The Brickyard
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    The Bad Guy
    That sounds about right from a time perspective.
     
  17. jjtjr

    jjtjr Formula Junior

    Aug 29, 2016
    402
    Vermont
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    john truskowski
    It should have more to do with how the car is used than just time alone. If the car is tracked frequently, then 7 yrs is russian roulette. If its just driven mildly then maybe 7 yrs is conservative?
     
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  18. TrojanFan

    TrojanFan F1 Rookie
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    Nov 17, 2008
    4,227
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    Peter
    Tim are you saying that is had gone 21 years without a change?
     
  19. SoCal1

    SoCal1 F1 Veteran
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    Jun 14, 2011
    8,110
    SoCal LA/OC
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    Tim Dee
    Correct, the waterpump was wasted, belts tensioners looks good 15k miles garage queen
     
  20. taz355

    taz355 F1 Veteran
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    Feb 18, 2008
    5,308
    Indio Ca/ Alberta
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    Grant
    Nice
    You saved enough money on belt services to buy that new car for the bride
     
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  21. TrojanFan

    TrojanFan F1 Rookie
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    Nov 17, 2008
    4,227
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    Peter
    Good to hear. It's been 5 years on my 355 and I don't feel like doing it just yet. I'm thinking that I'm on the 7 year plan.

    Just changed the belts and tensions on my 612. It had been done by Ferrari of Ft. Lauderdale in 2012 by the previous owner. Bearings seemed fine and the belts looked almost new. 6 years there. Used the Hill bearings so it should be good for a while.

    When I changed the belts on my 328 just after I bought it, they haden't been done in 12 years. Again bearings and belts looked fine. Doen't mean that they wouldn't have failed the next day but the made it 12 years without an issue.
     
  22. johnk...

    johnk... F1 Veteran
    Owner

    Jun 11, 2004
    8,087
    New England/FL
    FYI, water pump on my 85 308 is original with 33k miles; 355 water pump is original with 27k miles. Tensioner bearing on the 308 were change at 25 years, 27k miles. Still in fine shape.
     
  23. Nader

    Nader Formula Junior
    Silver Subscribed

    Feb 12, 2011
    990
    East of Seattle
    I'm detecting a suspicious lack of hysteria about extended service intervals…
     
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  24. ernie

    ernie Two Time F1 World Champ
    Lifetime Rossa Owner

    Nov 19, 2001
    22,022
    The Brickyard
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    The Bad Guy
    That’s because we have pretty much busted the 3 year mumbo jumbo.
     
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  25. taz355

    taz355 F1 Veteran
    Silver Subscribed Owner

    Feb 18, 2008
    5,308
    Indio Ca/ Alberta
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    Grant
    Heres my car history
    I am slowly working up to Tims belt service interval
    4, 4, 5, 7,
    Next one 10 ha ha
     
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