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348 alternator removal & rebuild

Discussion in 'Technical Q&A' started by ernie, Mar 12, 2007.

  1. ernie

    ernie Two Time F1 World Champ
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    Okay guys, I recently removed and rebuilt the alternator in my 348. F-Chater jm3 rebuilt the alternator in his 355 using updated parts. Here is the thread were he listed the parts he used http://ferrarichat.com/forum/showthread.php?t=124504&highlight=transpo

    The old Transpo regulator (part #IN220) has a tendancy to go bad, and I think they are a piece of junk. I had the alternator rebuilt a few years ago and the shop that rebuilt it used the standard Transpo parts and they ended up failing on me again. The battery light would also come on when I would get into the upper rpm's. Well since the alternator crapped out on me I wrote down the part numbers that jm3 used on his rebuild and went to the the alternator shop to order them.

    Here are the Regitar part numbers:

    regulator - #VRH2005-4A
    rectifier - #RN-02

    Well when I ordered them the supplier to the shop told them that a company named USI made a better regulator than the Regitar. Not that the Regitar was a bad regulator but that the one USI made was just better. So I figured why not and ordered the USI regulator. That way we have two alternatives to choose from over the crappy Tranpso part. I still used the Regitar rectifier though.

    Here is the USI part number:

    regulator - #00632, 71-30003/SCP

    Unit2 electric in Ventura was a big help in getting the parts for me.

    Since I had all the stuff I figured you guys would like a how-to on the removal and rebuild, and yes I did take pictures. Oh yeah one more thing, this is for the Nippondenso alternator, so you can use the parts for a 348 or a 355.
     
  2. ernie

    ernie Two Time F1 World Champ
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    Total removal time is about 30 minutes. I took me 50 minutes, but that was because I was screwing around with the camera so much, trying to get the best shots for you guys.

    Okay now for the rebuild.
     
  3. ernie

    ernie Two Time F1 World Champ
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    #3 ernie, Mar 12, 2007
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  4. ernie

    ernie Two Time F1 World Champ
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    #4 ernie, Mar 12, 2007
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  5. ernie

    ernie Two Time F1 World Champ
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    #5 ernie, Mar 12, 2007
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  6. ernie

    ernie Two Time F1 World Champ
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    #6 ernie, Mar 12, 2007
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  7. ernie

    ernie Two Time F1 World Champ
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    #7 ernie, Mar 12, 2007
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  8. ernie

    ernie Two Time F1 World Champ
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    #8 ernie, Mar 12, 2007
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  9. ernie

    ernie Two Time F1 World Champ
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    #9 ernie, Mar 12, 2007
    Last edited by a moderator: Sep 7, 2017
    Now be sure to support the bottom of the alternator, then remove the bolts. The bolts slide out from the back, towards the engine not the firewall.
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  10. ernie

    ernie Two Time F1 World Champ
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    #10 ernie, Mar 12, 2007
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  11. ernie

    ernie Two Time F1 World Champ
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    Total removal time is about 30 minutes. I took me 50 minutes, but that was because I was screwing around with the camera so much, trying to get the best shots for you guys.

    Okay now for the rebuild.
     
  12. ernie

    ernie Two Time F1 World Champ
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    #12 ernie, Mar 12, 2007
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  13. ernie

    ernie Two Time F1 World Champ
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    #13 ernie, Mar 12, 2007
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  14. ernie

    ernie Two Time F1 World Champ
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    #14 ernie, Mar 12, 2007
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  15. ernie

    ernie Two Time F1 World Champ
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    #15 ernie, Mar 12, 2007
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  16. ernie

    ernie Two Time F1 World Champ
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    #16 ernie, Mar 12, 2007
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  17. ernie

    ernie Two Time F1 World Champ
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    #17 ernie, Mar 12, 2007
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  18. ernie

    ernie Two Time F1 World Champ
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    #18 ernie, Mar 12, 2007
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  19. ernie

    ernie Two Time F1 World Champ
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    #19 ernie, Mar 12, 2007
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  20. ernie

    ernie Two Time F1 World Champ
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    #20 ernie, Mar 12, 2007
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  21. ernie

    ernie Two Time F1 World Champ
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    #21 ernie, Mar 12, 2007
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  22. ernie

    ernie Two Time F1 World Champ
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    #22 ernie, Mar 12, 2007
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  23. No Doubt

    No Doubt Five Time F1 World Champ
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    #23 No Doubt, Mar 12, 2007
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    Nice work. You rock, Ernie!

    Stooges rule!
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  24. Gimme Fuel

    Gimme Fuel F1 Veteran

    Mar 15, 2003
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    Fantastic job Ernie!!! :):):)
    Hope you'll manage to put it back together :)
    If you have these pics in high-res, then please store them ;);)

    Thanx for posting!
     
  25. ernie

    ernie Two Time F1 World Champ
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    #25 ernie, Mar 12, 2007
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