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348 major service - repair or replace?

Discussion in '348/355' started by Dalema, Apr 3, 2019.

  1. yelcab

    yelcab F1 Veteran
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    Nov 29, 2001
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    San Carlos, CA
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    Mitchell Le
    The 348 water pump is particularly harder than the 308/328 and the 355.
     
  2. AceMaster

    AceMaster Two Time F1 World Champ

    Feb 6, 2009
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    Mike
    I remember reading somewhere about pressing the seal (or pressing something back together) and there is zero margin for error or it will leak.
     
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  3. yelcab

    yelcab F1 Veteran
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    Nov 29, 2001
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    Mitchell Le
    That is one thing that is common among all WP rebuilds. The 348 water pump is used as a idle bearing on the timing belt and has an inverted pulley which is not intuitive to remove. When it fails, the timing belt goes kaput and the engine coughs up a valve or two. On the 308/328/355, when it fails, you see a puddle on the floor, steam coming off the engine bay, and you normally have time to pull over and shut it off. Those water pumps can also be changed with the engine in the car. Not so for the 348, its engine has to come out for that. Due to the higher risks of collateral damage and the engine out requirement and the new water pump being only $400, it is better just to replace the water pump every 10 years (every other engine out service).
     
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  4. Ricambi America

    Ricambi America F1 World Champ
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    Dec 7, 2003
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    Daniel
    Said one Ferrari designer to another, "hey, let's use the back of the timing belt to run the waterpump -- what could possibly go wrong?"
    Said another engineer sitting in a nearby cubicle, "If everything goes right, it's genius!"

    Said the marketing guy, "No worries gentlemen! We only have a two year warranty on these cars anyway!"
     
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  5. yelcab

    yelcab F1 Veteran
    Consultant

    Nov 29, 2001
    8,775
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    Mitchell Le
    Those are the same three guys who made the decision to drill through the oil pan twice to get to the gearbox? Yes, those three.
     
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  6. Dalema

    Dalema Rookie

    Jun 21, 2018
    24
    Bay Area
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    Matt Dale
    Thanks. You are talking about part 170787? Is that the HE bearing in the above Ricambi listing. Looks like they replaced that in my last major.
     
  7. Dalema

    Dalema Rookie

    Jun 21, 2018
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    Matt Dale
    Couple of questions:

    - When I look up the TSB10-34 kit on Ricambi it also lists part 144488 (driven gear). Is that required by the TSB?
    - Should the oil pump be replaced while there - wasn't sure on what to look for on that or how long they should go?
     
  8. steved033

    steved033 Formula 3
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    Apr 12, 2017
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    Steve D.

    on the 144488, most of us have the fences welded instead of buying a new one.

    sjd
     
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  9. Ricambi America

    Ricambi America F1 World Champ
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    Dec 7, 2003
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    144488 is certainly not 'required' as long as you have the capacity to properly weld the fences in place.
     
  10. Ferrarium

    Ferrarium Formula Junior
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    Jul 28, 2018
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    Eric
    Weld before buy, they are pressed on, even new ones. Tacked ones you wont have to worry about. Even if I bought new ones I would tack them. I tacked mine.
     
  11. Wade

    Wade Two Time F1 World Champ
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    Mar 31, 2006
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    Wade O.
    LOL. :)
     
  12. Ricambi America

    Ricambi America F1 World Champ
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    Dec 7, 2003
    15,147
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    Daniel
  13. brent Lachelt

    brent Lachelt Formula 3
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    Dec 6, 2003
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    Brent R.Lachelt

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