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458 exhaust bypass valve actuator bad

Discussion in '458 Italia/488/F8' started by triathgeek, Mar 9, 2019.

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  1. triathgeek

    triathgeek Karting

    Jul 25, 2010
    122
    Santa Clarita, CA
    #1 triathgeek, Mar 9, 2019
    Was wondering if anyone can help me out here....
    One of my exhaust bypass valve actuators has gone bad; the vacuum diaphragm is bad compared to the other side that is good. Can this item be purchased separately and relatively easily installed or do I need to buy a whole new system?
    Thank you for your help.
     
  2. PhilNotHill

    PhilNotHill Two Time F1 World Champ
    Owner

    Jul 3, 2006
    27,855
    Aspen CO 81611
    Full Name:
    FelipeNotMassa
    #2 PhilNotHill, Mar 10, 2019
    Disconnect both bypass valves. Then you will have that loud exhaust music all rhe time. Did mine and l love it.
     
  3. Rbwiii

    Rbwiii Formula Junior

    Aug 9, 2014
    606
    Cali
    Full Name:
    BW
    #3 Rbwiii, Mar 10, 2019
    +1
     
  4. Need4Spd

    Need4Spd F1 Veteran

    Feb 24, 2007
    6,678
    Silicon Valley
    #4 Need4Spd, Mar 10, 2019
    of2worlds likes this.
  5. eric355

    eric355 Formula 3
    Silver Subscribed

    Nov 30, 2005
    1,228
    Toulouse (France)
    Full Name:
    Eric DECOUX
    #5 eric355, Mar 11, 2019
    NuorderSG and Viperjoe like this.
  6. NuorderSG

    NuorderSG Formula Junior
    Silver Subscribed

    Aug 31, 2016
    294
    San Francisco Bay Area
    #6 NuorderSG, Jun 17, 2019
    Interested in knowing the parts list, source, any machining/metal work? The bracket looks great by the way!
     
  7. triathgeek

    triathgeek Karting

    Jul 25, 2010
    122
    Santa Clarita, CA
    #7 triathgeek, Jul 29, 2019
    Wow! could I get more info and what I need to make? This is what I need.
     
  8. obbob

    obbob Formula Junior
    Silver Subscribed

    Aug 14, 2017
    774
    #8 obbob, Jul 29, 2019
    I think one of my valves might be bad, I hear a metal jingle coming from the exhaust.

    Can anyone inform how you guys determined your valve was bad?
     
    alibo70 likes this.
  9. triathgeek

    triathgeek Karting

    Jul 25, 2010
    122
    Santa Clarita, CA
    #9 triathgeek, Jul 29, 2019
    obbob - The valves are open all the time. Sounds great going up and down the gears around town & canyons, but the drone at steady state on longer drives gets real old for me & the Mrs. Gots to keep the Mrs. happy so I can keep adding to the stable.
    My car is now at my great local independent specialist taking a look at installing the Ferrari recommended replacement part. Per Scuderia Parts, Ferrari said they would provide installation/adaptation instructions if I purchased them. Now Scuderia Parts says they cannot provide & I have to have the dealer install them? Scuderia Parts has abandoned me!
    I will post how this all turns out.
     
  10. triathgeek

    triathgeek Karting

    Jul 25, 2010
    122
    Santa Clarita, CA
    #10 triathgeek, Jul 29, 2019
    PS: It's the diaphragm actuator that is bad, not the valves in my case.
     
  11. PhilNotHill

    PhilNotHill Two Time F1 World Champ
    Owner

    Jul 3, 2006
    27,855
    Aspen CO 81611
    Full Name:
    FelipeNotMassa
    #11 PhilNotHill, Jul 29, 2019
    Get her some earplugs. Or if she likes music some earphones. Cheap.
     
  12. triathgeek

    triathgeek Karting

    Jul 25, 2010
    122
    Santa Clarita, CA
    #12 triathgeek, Jul 30, 2019
    Update 7/30/19: R2 Racing in Santa Clarita, CA installed the replacement diaphragm actuators (Ferrari P/N is 70003133) today in a snap; thank you Raffi!. I have the Forza remote valve controller & it's back to normal operation. Scuderia Car Parts provided very poor service on purchasing the diaphragm actuators; I highly suggest you purchase elsewhere.
     

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