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Question about battery/alternator function at idle.

Discussion in '348/355' started by The Outcast, Jun 28, 2017.

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  1. drbob101

    drbob101 F1 Rookie
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    Nov 26, 2012
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    Bob Ferraris
    #26 drbob101, Jun 29, 2017
    Last edited by a moderator: Sep 7, 2017
    Lol. That's with the engine out.

    This is the left side engine in. There's a rubber hose on the other end of that you can't see in that pic. I have no clue how you get to that insitu.

    Thankfully it wasn't my issue. Ricambi doesn't even stocknthem.
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  2. Dave rocks

    Dave rocks F1 World Champ
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    #27 Dave rocks, Jun 29, 2017
    Well, clearly Dennis did it so it must be accessible ;)

    IMO, the bigger issue is containing the fuel from getting all over the engine when you start disconnecting the lines. I believe the entire fuel rail may contain fuel so that's a fairly large volume.

    Regarding the part, It's Bosch 0280160564, $227 :) (BTW, the fuel rail is Bosch too)

    Fuel Pressure Regulator Fuel Pressure Regulator BOSCH 0280160564 Ferrari 167321
     
  3. drbob101

    drbob101 F1 Rookie
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    #28 drbob101, Jun 29, 2017
    Well hopefully he'll explain how he did that and what disassembly was necessary. I was thinking the approach had to be from above but just taking that picture required maneuvering.
     
  4. The Outcast

    The Outcast Formula 3

    Apr 19, 2011
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    #29 The Outcast, Jun 29, 2017
    Just take off the back tire and reomove the shields, and there it is, attached to the fuel rail.
     
  5. Dave rocks

    Dave rocks F1 World Champ
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    #30 Dave rocks, Jun 29, 2017
    Dennis - how did you contain the fuel?
     
  6. The Outcast

    The Outcast Formula 3

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    #31 The Outcast, Jun 29, 2017
    I didn't. I will smell like gasoline until Sunday.
     
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  7. Dave rocks

    Dave rocks F1 World Champ
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    #32 Dave rocks, Jun 29, 2017
    Dennis - be sure to wash down the engine bay so you don't burn the car to the ground... :(
     
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  8. The Outcast

    The Outcast Formula 3

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    #33 The Outcast, Jun 29, 2017
    Since it's well forward of the shock tower, there's a surprising amount of room. If you're 5'8"...
     
  9. The Outcast

    The Outcast Formula 3

    Apr 19, 2011
    1,562
    Royal Oak Michigan
    #34 The Outcast, Jun 29, 2017
    Yep...sprayed the bay down with Bike Brite and rinsed her off.

    I gotta believe every F355 owner has fantasized about his/her car going up in flames at least once...
     
  10. mike32

    mike32 F1 Veteran

    May 13, 2016
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    #35 mike32, Jun 30, 2017
    Looks similar to my lawn mower engine, does not take long to cut the grass on a sunday afternoon. !!
     
  11. ///Mike

    ///Mike F1 Veteran

    Dec 11, 2003
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    #36 ///Mike, Jun 30, 2017
    Ha! I'd love to see your mower. 8500 RPM must be hell on blades. :D

    Not much fuel to contain when changing a regulator. Wrap a rag around the fitting as best you can and have at it. The spilled fuel will be evaporated by the time the wheel well liner is reinstalled, although the smell will remain for a while. Plastic gloves are your friend.

    Glad you got it fixed, Outcast. Figured it was an injection issue but didn't really suspect a regulator based on the symptoms mentioned. How did you arrive at that conclusion?

    FWIW, battery issues can indeed cause similar problems so it was worth considering even though it wasn't the first place my mind went. With an older battery it's certainly something to think about. A load test or battery condition tester would quickly confirm or deny the theory.
     
  12. mike32

    mike32 F1 Veteran

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    #37 mike32, Jun 30, 2017
    You need running shoes to keep up with it.
     
  13. Dave rocks

    Dave rocks F1 World Champ
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    #38 Dave rocks, Jun 30, 2017
    I guess "much" is subjective as you will have the volume in the line before the regulator and the volume of the fuel rail - I'd guess it's 1/2 a coffee cup...
     
  14. The Outcast

    The Outcast Formula 3

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    #39 The Outcast, Jun 30, 2017
    Last edited: Jun 30, 2017
    It was a two-component Scientific Wild-A** Guess, based on 1) the fact that my injectors were given a clean bill of health when the car had a comprehensive Major Service one year ago and, 2) the fact that the car's idle dove sharply below 1000 RPM after sustained higher-RPM activity when I took my foot off the gas, suggesting something related to vacuum. Those two things, combined with Dave Rocks' assessment of the behavior as possibly fuel-related, which was also suggested by a highly-regarded Ferrari technician with whom I'm acquainted, drove my actions. Luckily, it worked.
     
  15. The Outcast

    The Outcast Formula 3

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    #40 The Outcast, Jun 30, 2017
    Last edited by a moderator: Sep 7, 2017
    I guess that would depend on the size of your coffee cup, Dave...
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  16. taz355

    taz355 F1 Veteran
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    #41 taz355, Jun 30, 2017
    Daves a machinist engineer so he prefers cutting fluid to gasoline.
     
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