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Mondial8 not starting when it's warm/hot.

Discussion in 'Technical Q&A' started by Dino 208gt4, Jun 2, 2005.

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  1. Dino 208gt4

    Dino 208gt4 F1 World Champ

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    #26 Dino 208gt4, Aug 29, 2005
    It seems the former owner has had the same problem so he put an extra relais in. It car started well and problem started after I had it for a few months. As I well understand the extra relais is to give an extra 'boost' for the "getting worse" starter.
    So now also the "extra" relais doesn't work anymore it seems the starter has gone VERY bad now.
    Could this also be the reason the new extra relais isn't working too?


    Is it enough to change the selenoid are do I have to replave the whole starter??
     
  2. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    #27 Steve Magnusson, Aug 29, 2005
    You don't have to replace the whole starter assembly -- if you can source the parts separately (sometimes this is a problem and a supplier will only sell the whole assembly). The starter solenoid and the starter motor are quasi-independent -- i.e., if you replaced the starter solenoid (and it engaged properly when asked), but the starter motor didn't turn, then you'd replace the motor portion too (and be upset for not buying a complete starter originally ;)).

    To test the motor portion -- touch a very large jumper wire (or a metal screwdriver blade) to electrically connect the two large threaded studs at the back of the starter solenoid. If the starter motor is OK, it will spin (but not engage the flywheel since the solenoid is not actuated).

    Do you know the F PN of your starter assembly or have the 10-digit Bosch PN that is stamped into the outer case of the starter solenoid?
     
  3. Dino 208gt4

    Dino 208gt4 F1 World Champ

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    #28 Dino 208gt4, Aug 30, 2005
    Yesterdayevening it wouldn't start (while still cold)
    This morning I walked into the garage and turned the key and engine ran in 2 seconds....................it's getting me mad.
    I think Steve is reight, it's better so change the selenoid. I think the startermotor is ok, the bad part is the selenoid.
    I will test them ,like you mentioned, this week and will try to replace the selenoid.
     
  4. Dino 208gt4

    Dino 208gt4 F1 World Champ

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    #29 Dino 208gt4, Aug 30, 2005
    My manual says:

    startmotor FIAT 103959

    or

    Startmotor BOSCH 106966

    Will have to take it if. Couldn't see the number or brand with a flashlight.
     
  5. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    #30 Steve Magnusson, Aug 30, 2005
    Unfortunately, I don't have any part sourcing information corresponding to those numbers.

    If you're a hard-core DIYer, the next likely step would be getting the stamped 10-digit Bosch PN off of the solenoid case and then trying to do some cross-referencing and source the part yourself.

    If not, you might try contacting RicambiAmerica and see if they would be interested in establishing an alternative source for F starter solenoids -- I see a business opportunity here since Ferrari (the company) doesn't seem to be serving this need very well IMO.

    Let us know how it works out.
     
  6. Dino 208gt4

    Dino 208gt4 F1 World Champ

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    #31 Dino 208gt4, Aug 30, 2005
    I am gonna take it of this thursday and will bring it to a "specialist" for a revision. I will tell him it is a Fiat startmotor :D
    I'll let you know how it ends!!
     
  7. Dino 208gt4

    Dino 208gt4 F1 World Champ

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    #32 Dino 208gt4, Sep 8, 2005
    Last edited by a moderator: Sep 7, 2017
    I want to thank all the fellow Fchatters who helped me out on this forum.
    I got the startmotor of and brought it to a company for a rebuild.
    Nex bendix, wiring and startrelais. Told him the startmotor was from an old Fiat ;) and costs me 115 euros ($95).
    Yesterday I found time and it was just a 15 minutes job to put it on again.
    I made some pictures of the "proces"

    Thanks again guys!! This is where Fchat is all about.
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  8. Dino 208gt4

    Dino 208gt4 F1 World Champ

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    #33 Dino 208gt4, Sep 8, 2005
    Last edited by a moderator: Sep 7, 2017
  9. Dino 208gt4

    Dino 208gt4 F1 World Champ

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    #34 Dino 208gt4, Sep 8, 2005
    Last edited by a moderator: Sep 7, 2017
  10. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    #35 Steve Magnusson, Sep 8, 2005
    Well done.

    So do you now have just 1 (new) added relay between the start command line from the ignition key and the starter solenoid, or are you back to "stock" with the start command line from the ignition key going directly to the starter solenoid?
     
  11. ninot

    ninot Karting

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    #36 ninot, Sep 8, 2005
    It is simple physics
    Ohms Law - the hotter it all gets the more resistance - it doesnt help when the battery is in the front of the car and the engine at the back as the lenght of wiring provides resistence and therfore also has an effect on the current.

    yes it can be rather embarrassing...
     
  12. Dino 208gt4

    Dino 208gt4 F1 World Champ

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    #37 Dino 208gt4, Sep 10, 2005
    Hi Steve,
    Yes, I am back to "stock" configuration.
    With a new startrelais I asume I don't need the extra relais for a few years!! :)
    Thanks for helping me out with this problem!!
     
  13. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    #38 Steve Magnusson, Sep 10, 2005
    Thanks for the information -- "stock" is my preference just for less complexity.
     
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