New to me manual 400GT 24649 | Page 2 | FerrariChat

New to me manual 400GT 24649

Discussion in '365 GT4 2+2/400/412' started by Jaredsalinsky, Apr 5, 2024.

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  1. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
    667
    tampa FL
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    Jared salinsky
    Very cool. Thank you for pointing that out!
     
  2. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
    667
    tampa FL
    Full Name:
    Jared salinsky
    Ok update:
    I got to drive Corina (the name I’ve given to my 400- means ‘pretty’ in Italian) around 20 miles today! I must say… truly glorious at speed! Smooth like riding on a cloud. Soft driver seat and the sweet sound of the carb’d V12 with the windows open….
    However inevitably found a few things. I will list them:
    1- with engine off, and with engine on at idle the speedo shows 15-20 mph. Weird. Not sure if this is normal for this car,
    2- left rad fan squealing / failing. do I revise the Lucas or replace with the Mercedes fans as I’ve been reading. Lots of options. I will take any opinions. Please and thank you
    3- AC def dead. Compressor groaning and absolutely no cold air. Will likely replace as previously discussed
    4- visor clip broken. Ordered
    5- left and right blinkers blink fast or not at all. Will first change bulbs . Then explore circuitry if no bueno. Can we use led bulbs or does that require an adapter? Or is the consensus to stick with traditional H1 bulbs?
    6- int lights not coming on when either door open. Bulbs vs switch
    7- turned on my headlights to check ‘em. Left one started blinking… not the light bulb…the actual pop-up light! I’ve never seen that before in any car. It just would pop up and down without stopping even when I turn the lights off or when I turn the lights on. Then it sort of stopped on its own. I did the test again and the same thing happened. Maybe six or eight times. Finally stopped. I’m guessing something wrong with the relay? Maybe a short in the motor?
    8- gotta reupholster the dash and change out the radio. Will likely do at the same time
    9- last thing- there’s a light on the dash and I think it’s the catalytic converter light. Yellow coily light. Will get pics in am. Stayed on the whole drive. Guessing cat needs to be changed? Any input is appreciated.
    Thanks!
     
  3. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
    667
    tampa FL
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    Jared salinsky
    Figured out 9
    Rear window heater was on…
     
  4. 3POINT8

    3POINT8 F1 Veteran
    Rossa Subscribed Silver Subscribed

    Jan 23, 2014
    5,223
    congrats!
     
  5. Il Tifoso

    Il Tifoso Formula 3
    Owner Silver Subscribed

    Oct 22, 2013
    1,637
    SF Bay Area, CA
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    Ruben
    #1 is definitely “normal” - it’s like this in every 365/400/412. Essentially, the initial 15-20 mph don’t matter! ;)

    Congrats, it’s a rare unicorn indeed - enjoy it in good health!
     
  6. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
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    Jared salinsky
    #31 Jaredsalinsky, Apr 20, 2024
    Last edited: Apr 20, 2024
    Ok so I think I want to be proactive and do the clutch on Corina. Although no gears are grinding the clutch engages very high, and sometimes slips. My question is: has someone put together a ‘kit’ to buy that includes all necessary parts? Or can someone from the group direct me to where I can source all necessary parts? Obviously I already did the Eurospares search and they have the clutch page there- but I don’t want to buy every part if there are only specific parts I should be getting.

    I already bought new used rad fan motors and the Detomaso Pantera fan shroud- so we’ll see if they help!

    thanks!
     
  7. raemin

    raemin Formula 3

    Jan 16, 2007
    2,306
    Lyon (FR)
    Full Name:
    R. Emin
    Pop-up lights is usually dried grease on the electric path of the lifting motors. Removing the rubber boot of the motor is a pain, but the repair is quite easy.

    For cooling you can retrofit the three fan setup of the 400i. The injected cars were updated with a third (yellow) fan made by ASTI. This is plug and play.

    I've also retrofited the lucas with a shroud that was designed for DeTomaso (same Lucas fan). Makes AC much better in the traffic stops.
     
  8. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
    667
    tampa FL
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    Jared salinsky
    Thank you very much. I will be examining the fans later today; will def add the shroud in the front, and may add the third ‘puller’ behind.

    and I will also be checking out the lights today. Biggest thing I took away from previous threads was to disconnect the battery before working on the light-lift motors to avoid pinched fingers. Will update as I find stuff out

    any recs on the clutch?

    one last thing any recommendations on the fuse panels and relay boards? do people upgrade them? Are they reliable or is it only a matter of time before they burn out?

    thanks!
     
  9. raemin

    raemin Formula 3

    Jan 16, 2007
    2,306
    Lyon (FR)
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    R. Emin
    The early relay panel (till 400i gen1) are bullet-proof, you may want to upgrade the fuse panels as the quality of nowadays torpedo fuses is "so-so", but the panel itself is good.

    As for the lifting motor, they are easy to disconnect: there us a fastin-fastonn connector burried in the fender.

    Good luck with the door lights: the socket are usually corroded beyond repair. Fortunately the socket is the same as the side markers that are easy to source (eurospares, superformance, etc.)
     
  10. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
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    Ok I’ll leave the fuse panels alone for now

    Yup I’ll try to get in there to disconnect the light motors once I see what’s causing what

    The door lights I’m ok with (at least one works- the other I changed the bulb, and checked continuity in the bulb holder, but still no light)- it’s the interior dome lights that aren’t coming on when the doors are opened. So I thought it might be the little button by the door hinge. Btw is there any way other than opening the doors to turn the dome lights on?
     
  11. Schumi

    Schumi Formula Junior
    Owner Silver Subscribed

    Jun 5, 2002
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    Daren
     
  12. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
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    Yep, I just read that this morning in… Guess where… The product manual! When in doubt read the directions! Thank you for following up
     
  13. Theruse

    Theruse Karting

    Jan 17, 2014
    179
    Maryland
    Full Name:
    Prescott Russo
    I also have a carbed 78. Wonderful sound of the Webers and have more HP than later FI models

    The fast blinkers are not the bulbs. The blinker relay is the culprit and easy to access under the dash near the steering wheel. Standard part found at any autoparts store. I replaced the fans with SPAL fans and wired them directly to the battery with a relay. Works beautifully and never goes past 90. For the A/C remember that you probably have a dual unit for the front/rear and that the speaker type grill on the rear window tray is not a speaker but part of the rear A/C unit. REplacing the bullet style bulbs with LEDs are easy and unlike modern cars that still had tungsten bulbs, the LEDs will not need a resistor to trigger a warning light. One benefit of old school technology. I replaced the door switches and notice that mine are adjustable by turning the plastifc button.
     
  14. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
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    tampa FL
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    great to know you! what is your serial #?
    The rads - I thought about doing the direct to battery radiator conversion with separate relay similar to what I have in my 456, but for now I'm going to try to keep it as 'stock' as I can; I'm rebuilding the Lucas motors and adding the DeTomaso fan shrouds.
    the blinkers - thanks for the input!- I figured it wasn't the bulbs. I will check the relay in short time
    the AC - I do not have the dual AC...I guess that will make it easier?
    the bulbs - Just so I understand correctly you mean there should be no problem switching to LEDs?
    Lastly I'm not sure what you mean about the door switches, and adjustable by turning a plastic knob? But I'd love to know!!

    I'm still having a heck of time getting to this last bolt/nut to get the bottom valence off; they are rusted and extremely difficult to even reach! I'm wondering if the obvious thing to do is remove the fans and the plate to which they are attached? I think it's just remove the tube at the top of the fan, and disconnect the wire? Once that's out sure would be a lot easier access to not only the difficult bolt/nut but also general inspection of everything under/around there.

    thanks again!
     
  15. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
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  16. Theruse

    Theruse Karting

    Jan 17, 2014
    179
    Maryland
    Full Name:
    Prescott Russo

    My serial number is 23613. On the door switch button that protrudes from the door frame (mine is white,) if you turn it is is adjustable in or out. LEDs were easy to replace. Just make sure your get the color balance you want.
     
  17. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
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    Yep, I was in a fog. I just realized what you meant about the door switch. Yes in my troubleshooting I realized it was my misuse of the overhead dome lights. I didn’t realize if you click them forward or backward it would put lights on, or lights on with door open, or lights off. Anyway, turns out my door switches are fine.

    Yes, the LED kelvins Should remain consistent to keep all the lights “the same color “
     
  18. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
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    One thing forgot to mention: when I turn on my hazard lights both blinkers are fine. The rapid erratic blinking is only when I use my turn signals. Thus I don’t think it’s the relay because I believe I read that relay is for both directional blinkers AND hazards. Wonder if it’s the turn-signal stalk? will check the relay anyway….
     
  19. Zanny1

    Zanny1 Formula 3
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    Dec 19, 2003
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    Spray some contact cleaner in the area where the turn signal cam is. Be sure to hold a rag underneath to catch any runoff. Work the turn signal stalk up and down and see if anything happens. My turn signals on my '71 C4 were inop when I got the car and this was the fix. They work fine now. Your relay is fine.
     
  20. samsaprunoff

    samsaprunoff F1 Rookie
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    Jun 8, 2004
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    Good day Jared,

    Just a bit of background on Light "Kelvins" or Light Temperature (measured in Kelvins) that is used to denote the overall "color" of white LED lights. Light Temperature is not an absolute value, but is an average of light "colors" (wavelengths) that create the overall Light output and thus light temperature. Consequently, you can have two light sources that have the same lighting temperature (same Kelvin value), but will not produce the same light "color". For example, if you compare a 4000K Fluorescent Light to a 4000K LED light, you will find that the Fluorescent looks a bit "greener" and the LED more Blue. This is because the Fluorescent technology has more of a green light component in its makeup, whereas LED tend to have more blue. Also, the more "blue" the light, the more brighter the light will appear, as the human eye is not as sensitive to blue (wavelength) light and so more light photons enter the eye... and thus is brighter. With all that said if you do want very close light color matching ensure that you buy all your LED bulbs at the same time, as LED bulb manufacturers do change LED vendors from time to time along with LED manufacturing variances.

    Cheers,

    Sam
     
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  21. samsaprunoff

    samsaprunoff F1 Rookie
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    Jun 8, 2004
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    Good day Jared,

    This still could be related to the flasher. The older style flashers were designed such that the flash rate could change depending upon the current load of the lighting circuit. The reason is because the flashing was done via mechanical heating of internal components. So, a higher current load would generate more heat quicker than a lighter load and so the flash rate would change. If you have a smaller current draw (e.g. LED bulbs draw much less current than the old incandescent), then the flash rate would indeed change. Overall this may explain why your flash rate is different when the hazards are on (more lights on, so ore current load) as opposed to just the signal lights (less lights on, so lower current load). The remedy is to use a modern flasher that uses electronics for its timing circuits and is not dependent on the current load. If you do find that the newer electronic flasher results in the same issue, then you will need to dig deeper. However, I would first replace the flasher with an electronic one as a first step.

    Cheers,

    Sam
     
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  22. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
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    Random question. As I begin to design and install the Spal radiator upgrade I realized my battery (+) is front and my (-) is back. For some reason I thought I saw the opposite in some pics. Also given the offset orientation of the poles they are offset to passenger side, and again I remember seeing them in pics to driver side. The car works so it’s not THAT big of a deal… but mysterious. As if they put the wrong battery in and just yanked the leads around. But they don’t seem to be under tension. And they don’t seem to be ‘redone’ or newer or anything like that because they are quite gnarled, as if truly 46 years old.
    Any opinions one way or the other?
    Ty
     
  23. samsaprunoff

    samsaprunoff F1 Rookie
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    Jun 8, 2004
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    Good day Jared,

    Referring to the owner's manual, every picture shows the battery terminals with the posts being on the fender side. Secondly, the pictures show one terminal with a rubber/plastic cover/insulator and this would indicate the positive terminal since that the body/chassis is grounded. Compare these to yours and see if it matches.

    Cheers,

    Sam

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  24. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
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    Thank you. That is precisely how mine looks.
    And once again the moral of the story is: READ THE PRODUCT MANUAL!
    Cheers
     
  25. Jaredsalinsky

    Jaredsalinsky Formula Junior

    Feb 8, 2023
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    Another question for the group: has anyone installed a battery disconnect like in newer F models? And if so which one?
    I have the ‘knife-blade’ kind on my Jeep, and old porsche- never had a problem. But not very classy.
    The ‘race-car’ style big rotary switch is also a bit cumbersome and does not match the aesthetics of the 400
    Could just buy one of the Ferrari model disconnects like on the 456.
    Opinions welcome
    Ty
     

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