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10 years later...

Discussion in 'Technical Q&A' started by theunissenguido, Jul 5, 2016.

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  1. theunissenguido

    theunissenguido F1 Rookie
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    Jan 21, 2004
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    Guido
    #1 theunissenguido, Jul 5, 2016
    Last edited by a moderator: Sep 7, 2017
    Its 10 years now that I maked my own fusebox for my mondial. Because I want to put an extra ventilator on the radiator, I have to remove that fusebox and put some extra connectors for the extra relais (that I did not put at the time).
    After removing that board its clearly in very good shape and even the connectors that I put on the wires are like new.
    Since then there are more then 30 Ferraris (mondials, TR's, Testarossas,328 and some 400 series) over the world driving with my fusebox replacement and I'm still waiting for the first negatif input. I only got positif remarks.
    Since I also put stock the connectors for the extra relais on mondial...so the owners can decide if they want to put an extra ventilator.
    Pictures : the first fusebox I maked with the bigger connectors. Since the connectors are even improved

    Guido
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  2. Mantinger

    Mantinger Karting

    Jul 30, 2004
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    #2 Mantinger, Jul 11, 2016
    Hi Guido,

    Nice job! I did the same to my 328 fusebox. Replacing the three layer print with soldered wires at the back of the original fusebox. Also about 10 years ago. No problems.
    Five years ago I purchased a complete original 328 fusebox at a scrapyard in my neighbourhood, so a original spare comes with the car when sold in the (hopefully) far future.
     
  3. theunissenguido

    theunissenguido F1 Rookie
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    #3 theunissenguido, Jul 12, 2016
    Last edited by a moderator: Sep 7, 2017
    look at the gold colored connectors after 10 years, still like new. You would expect some corrosion or less brilhance of the color, but not. Seems to be very good quality.

    Guido
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  4. vrsurgeon

    vrsurgeon F1 World Champ
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    #4 vrsurgeon, Jul 12, 2016
    Very nicely done!
     
  5. theunissenguido

    theunissenguido F1 Rookie
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    #5 theunissenguido, Jul 15, 2016
    Henk,did you put also bigger connectors for wires, relais and fuses like I did ?

    Guido
     
  6. Mantinger

    Mantinger Karting

    Jul 30, 2004
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    #6 Mantinger, Jul 15, 2016
    No, I did not. I only replaced the laminated side with wires.
    Found a few connections burnt, removed them from their sockets to resolder them. Checked the clamping force inside the connectors and readjusted the gaps.
    Added WD40 to prevent wire oxidation and no problems so far.
    Every 2 or so years I repeat the WD40 treatment to protect the wires from oxidation:

    - Connectors on the relay fuse board.
    - Connectors behind the passenger foot rest.
    - Connectors flywheel sensors.
    - Connectors above the rear wheel driver side.
    - Connector microplex in the boot.
     
  7. fatbillybob

    fatbillybob Two Time F1 World Champ
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    #7 fatbillybob, Jul 15, 2016
    Last edited by a moderator: Sep 7, 2017
    I did the same thing on a very electronic intensive maranello. I lost count of the years but they have been flawless despite not moving the high amp fan circuits off the board. I always think about doing that but have not done so. These boxes are like a bowl of pasta thrown on the floor. I took this path as a temporary fix. I had plans to build proper PC boards. This old school flawed method has worked so well I have just left it.
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  8. theunissenguido

    theunissenguido F1 Rookie
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    #8 theunissenguido, Jul 19, 2016
    ++ seems strong to me. But better with bigger connectors and double pins to solder for the relais. So heat has no chance over the years..
    Guido
     
  9. fatbillybob

    fatbillybob Two Time F1 World Champ
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    #9 fatbillybob, Jul 19, 2016
    I did mine as a test. Never thought it would last. Violates many principals. But it is holding up better than OEM.
     
  10. theunissenguido

    theunissenguido F1 Rookie
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    #10 theunissenguido, Aug 12, 2016
    Last edited by a moderator: Sep 7, 2017
    Received a 328 fusebox to check. Several anomalys found. Fuse connectors to wide open, 2 heavely correded, pins for relais loose in their fittings...
    So, that Dutch 328 gets a NEW fusebox made by me. It is on his way and will make a huge difference.
    PS : by the way, the early 328 fuseboxes are the same as mondial QV, with only 2 more connections that can be done outside the box (it is'nt doing anything inside).

    Guido
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  11. Brian L

    Brian L Formula 3

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    #11 Brian L, Aug 12, 2016
    In vintage amplifier design this is known as "point to point" and the spaghetti is higher quality than any circuit board.
     
  12. Alden

    Alden F1 Rookie
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    #12 Alden, Aug 12, 2016
    Last edited by a moderator: Sep 7, 2017
    +1

    They are making new tube amps too that are hand wired point to point, most are top quality and very expensive.

    1956 Gibson tube amp of mine:
    Alden
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  13. theunissenguido

    theunissenguido F1 Rookie
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    #13 theunissenguido, Aug 29, 2016
    Last edited by a moderator: Sep 7, 2017
    I see a lot of problems caused by using those liquids. I believe WD40 (and others) are infecting the plastic layers and copper circuit used on the OEM motherboards.
    So please dont use them....
    Other thing : there are some circuits on the boards that have wire connections on 2 different white plastic connector holders, that are just connected inside the board without doing anything. Those 2 wires can be connected outside the board and so reducing heat production and bad contacts.
    See pictures for mondial (1e) and TR (2e) boards.

    Guido
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  14. KM1959

    KM1959 Formula Junior

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    #14 KM1959, Oct 4, 2016
    As an electrical design engineer I can say that this is not true. A well-designed printed circuit (PC) board will measureably outperform discrete-component point to point design in nearly everything except ease of maintenance and modification. PC boards allow for optimized shielding, multiple ground planes, and for the various electrical paths to be electrically isolated from one another. This also allows for repeatable unit to unit performance. Ever notice how Plexi-era Marshall Superleads all sound different? It's mostly because they are all wired different. This is not the case for the newer ones. Try comparing a few '73 Superleads (PC board) and you'll see that they're way more similar to one another.

    I find the magic of vintage guitar amps to be due to their high-quality transformers and over-built power supplies. You simply can not build a bad a$$ amp with a wimpy power supply as you need high current for low end thump and dynamics. Physics is physics.
     
  15. theunissenguido

    theunissenguido F1 Rookie
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    #15 theunissenguido, Oct 12, 2016
    Last edited by a moderator: Sep 7, 2017
    A QV owner has put an new fusebox in his car and there are some troubles : during installation he refused to use the white plugs and has put the wires (with female isolated connectors) direct on the male connectors of that board.
    Not needed to tell this whas'nt the good choice...several solder points broken and I needed to re-solder them. He also send me his old fusebox to check wether it has the same diagram...it does. When looking at the old fusebox it came like that...it is'nt cared the gently way.
    I hope that people care a bit more for my baby's...

    Guido
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