Gs, Gi indicators | FerrariChat

Gs, Gi indicators

Discussion in '365 GT4 2+2/400/412' started by DaveO_48, May 30, 2015.

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  1. DaveO_48

    DaveO_48 Karting

    Jul 29, 2013
    184
    Henderson, Nv
    Full Name:
    David Odland
    I'm trying to understand if there is a problem with the charging system. The amp meter shows charging above idle, but the Gs and Gi indicators illuminate sometimes. As of yet I can't figure out if there is a pattern to when they illuminate.
    Where should I start to trouble shoot this problem? Or is this "normal" to have one or both of these lights illuminated occasionally?
    I can only guess that this is one of the "weak spots" in the electrical system. I probably have wiring issues elsewhere as I now have found a black wire (18ga or smaller) disconnected from the ignition switch and hanging below the dash.
    It all brings back memories of my fun with "Lucas Prince of Darkness" components on British motorcycles of the 60's.
    Any help or guidance would be appreciated.
     
  2. bundas

    bundas F1 Veteran
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    Dec 31, 2005
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    mitchell barnes
    Dave, the GS/Gi are air shock indicators. lh/rh air pressure. have you figured out where the steering leak is located? pump was just purchased from ferrparts as used. head light may be a the round black relay near the lamp assy. a porsche shop can source the part for less than 20
     
  3. Schumi

    Schumi Formula Junior
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    Jun 5, 2002
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    Missouri
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    Daren
    I think the Gs and Gi are for the upper and lower alternators.
     
  4. It's Ross

    It's Ross Formula 3

    Jul 30, 2007
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    #4 It's Ross, Jun 5, 2015
    Last edited: Jun 5, 2015


    The split indicator light is indeed for the alternators. They need to see a certain voltage at the field winding before they will generate. It is common for them to remain on until a blip of the throttle to get them going. If they are flickering at idle you may have; too low idle speed or failing voltage regulators, perhaps a grounding issue.
    IF these are the type Bosch alternators I think they are the regulator and brush assembly is easily serviced separately. Removing the alternators will be the fun part.
     
  5. bundas

    bundas F1 Veteran
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    Dec 31, 2005
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    Thanks for correcting my wrong info. It would have helped if I read😀
     
  6. DaveO_48

    DaveO_48 Karting

    Jul 29, 2013
    184
    Henderson, Nv
    Full Name:
    David Odland
    I have decided that since they only illuminate occasionally and only at idle it's likely a low idle issue. I'm dismantling the doors to take the lock in to have a key made. I managed to get a key made for the ignition but the locksmith had to mill an additional groove into the blank as there was no exact blank available. I'm going to start searching for a couple of blanks for each of the trunk/fuel key, door key and ignition key.
    Once the doors go back together I'll remove the alternators and have them bench run and load tested.
    While the doors are apart I'm planning on reconditioning the side mirrors. They have surface rust on the back of the mirror housing, cosmetic problem only, and I like to fix problems in groups rather than take the doors apart several times.
    This was my introduction to drive by wire door glass. I've seen many window regulators but this is quite different. Is this common on European cars? Both of them work fine. I'd like to find a procedure for cleaning and adjusting them as I don't have any experience with wire drive windows. Anyone have a synopsis for tuning them up?
    My project list keeps getting longer as I look into each item. Actually this is just what I wanted and my wife was hoping for. Now she knows that I'm either taking a nap or in the shop working. "Retirement" with a purpose.
     
  7. bundas

    bundas F1 Veteran
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    Dec 31, 2005
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    a thread on this a long time ago. the motors and cables are new. a really hard thing to find. there are new electric circuits. to increase the amps. continental auto Sports had extra key blanks. I had some. they show up in ebay. they are very cheap. I will ask ferrparts and T Rutlands.
     
  8. samsaprunoff

    samsaprunoff F1 Rookie
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    Jun 8, 2004
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    Edmonton, AB Canada
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    Good day Dave,

    In my case my door lock tumblers were damaged, as at some point someone tried fitting a a conventional key into the locks... Since I needed new tumblers, etc I contacted Ferrari UK (https://www.ferrariparts.co.uk/Default.aspx) to see what they had. Low and behold they had the tumblers with new keys in stock! I bought two brand new door lock tumblers with matching OEM keys for 22.94 GBP (included two tumblers and two keys) + shipping (20 GBP)! The negative side to this is that if your ignition key and door keys are matched, then they will no longer be unless you "re-key" the ignition switch.

    Cheers,

    Sam
     
  9. blkprlz

    blkprlz Formula 3

    Mar 24, 2007
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  10. It's Ross

    It's Ross Formula 3

    Jul 30, 2007
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    Ross
    Other cars use a cable too, MBs of the 90's come to mind, I've changed a few of those.
    Ours is a rather crude mechanism. There is a cable pinch bolt somewhere as I recall that loosened on mine. Re-adjusting and tightening that bolt were all that was needed to fix mine. Checking that the bolt is tight would ostensibly eliminate the re-adjustment part.
    Clean tracks and felts lubricated with a silicone spray lube helps any car's windows. I don't recall if the motors are able to be cleaned or lubricated without dismantling.
    Rewiring the circuit so the switches don't carry the motor load is another way that supposedly speeds them up. Mine work fine as is.
     
  11. samsaprunoff

    samsaprunoff F1 Rookie
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    #11 samsaprunoff, Jun 7, 2015
    Last edited by a moderator: Sep 7, 2017
    Good day Bruce,

    Indeed there is some confusion...

    Going by the Owner's manuals:

    a. 365 Gt4 2+2 - Ignition and Door keys are the same (1st Pic from Manual)
    b. 400 GT - Ignition and Door keys are the same (2nd Pic from Manual)
    c. 400i (79) - Ignition and Door keys are different (3rd Pic from Manual)

    d. 512BB - Note the Different in Ignition Key Style (4th Pic)

    Now to complicate matters... If your ignition lock was replaced (i.e. faulty, damaged, etc) and the original style was no longer available (NLA), then they shop would have been forced to use the same lock (and key) assembly as used on the 308s and Boxers... and this key is different... it is still a Neiman key, but looks different and has a different keyway.

    Cheers,

    Sam
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  12. blkprlz

    blkprlz Formula 3

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    I forgot all about the OM's showing the ignition, door, & glove box keys, thanks for that Sam...& it looks to me that the ignition keys are the same for all the 365/400/412 variants, & the door keys are the same for all variants.
    But it still looks like the ignition key is a different blank altogether compared to the door key blank, so I don't see how they can be keyed alike.
    Bruce
     
  13. samsaprunoff

    samsaprunoff F1 Rookie
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    Good day Bruce,

    Take a look at the captions within the pics... The 365 and 400 GT states that the ignition key and door keys are the same.

    To further corroborate this... the replacement lock cylinders (365) I received from Ferrari UK use the same key as what would have been for the ignition.

    Cheers,

    Sam
     
  14. blkprlz

    blkprlz Formula 3

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    Aaahh, totally missed that Sam. Boy, I feel for you guys that use the same door blank as the ignition as these authentic ones are either hard to find &/or expensive.
    Bruce
     
  15. bundas

    bundas F1 Veteran
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    Dec 31, 2005
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    The local shop has these blanks in stock.
     
  16. samsaprunoff

    samsaprunoff F1 Rookie
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    Good day Bruce,

    If it was a large concern I suppose one could order replacement door lock cylinders that use the smaller and easier to find (OEM and non OEM) keys... and keep the originals (keys cylinders) in a safe place. The big issue with the original ignition and door key is that the original style is no longer made... at least by Neiman ... and so what is currently being offered for sale reflects this in the price. However, I believe that there are some non OEM key blanks that can be used... or so I have gathered from reading various tidbits on the Web.

    Cheers,

    Sam
     
  17. bundas

    bundas F1 Veteran
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    Dec 31, 2005
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    I found two, I will send them to you
     

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