Engine out and much more | Page 2 | FerrariChat

Engine out and much more

Discussion in '348/355' started by blackcross, Oct 20, 2009.

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  1. blackcross

    blackcross Karting

    Jun 23, 2007
    100
    #26 blackcross, Oct 22, 2009
    Last edited: Oct 22, 2009
    Completely forgot to mention that we also discovered that one exhaust valve on cylinder 3 was missing the inner return spring!

    Looking at that cylinder, the seals on the head, the marks on the outer spring etc, we came to the conclusion that the spring was never installed at the factory. Could be wrong but I believe Claudio given his transparency, attention to detail and work ethic.
     
  2. PAP 348

    PAP 348 Ten Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2005
    100,232
    Mount Isa, Australia
    Full Name:
    Pap
    Wow! Glad he found it! :D:D


    Too many glasses of Barolo at the factory in the engine room when they put your engine together perhaps? :eek::eek:
     
  3. 50hdmc

    50hdmc Formula 3

    Oct 10, 2006
    1,211
    Michigan
    Full Name:
    mark s
    ..looks awesome....nice work indeed!
     
  4. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    9,741
    You have an excellent eye!

    200 PSI ?!
    What does this convert back to in xx:1 compression ratio?
     
  5. saw1998

    saw1998 F1 Veteran

    Jun 8, 2008
    8,237
    San Antonio, Texas
    Full Name:
    Scott
    Yup, Erine and Pap are very bright guys. However Mitch, you're pretty slick yourself there with some of your informative posts.


    With regards to the post. The engine looks great. You must feel very satisfied and comfortable knowing that it been done correctly. In addition, this is one more post that exemplifies the reason why a proper 30K service should be performed with the engine out, rather than in situ. The quality of the job, attention to detail, and the high probability of noticing other problems makes it, at least to me, a no-brainer.
     
  6. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    9,741
    I was kind of disappointed in myself for having seen the pictures and not seen the headwork itself. I usually catchs this kind of detail. So I'm sort of kicking myself on this one.
     
  7. Kayearc

    Kayearc Rookie

    Oct 22, 2009
    36
    Florida
    Full Name:
    Chris
    how would that happen?! doesn't the exhaust flow away form the engine, in to the cats (and pre-cats before those) then out the muffler at the tail pipe?
     
  8. Kayearc

    Kayearc Rookie

    Oct 22, 2009
    36
    Florida
    Full Name:
    Chris
    #33 Kayearc, Oct 25, 2009
    Last edited: Oct 25, 2009
    I dont believe there is a accurate relationship between results from a compression test (cyl pressure) and the static compression ratio.. much having to do with cam profile (overlap), ring/quide leakage, etc. I'm not a Ferrari expert at ALL.. but that is my understanding of typical four stroke engines.
     

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