308QV Accessory V Belts | FerrariChat
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308QV Accessory V Belts

Discussion in 'Technical Q&A' started by rfeaster, May 22, 2007.

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  1. rfeaster

    rfeaster Karting

    May 11, 2003
    52
    Sellersburg, IN, USA
    Full Name:
    Ron Feaster
    #1 rfeaster, May 22, 2007
    Never really found this information in the archives, so I'm posting this for public record. These are the belts for late 308QV's & probably 328's that use a 3 belt system:

    Alternator Belt: FPN:130496
    ---------------------------
    Gates:11M800 Dayco substitute:15315 (actually 10M800, but not available)

    A/C Belt: FPN:105046
    ---------------------
    Gates: 11M925 Dayco substitute: 15365

    Water Pump Belt: FPN: 121655
    -----------------------------
    Gates: 7M630 Dayco substitute: *none*
     
  2. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    #2 greg328, May 22, 2007
    Any reason why these wouldn't work on an early carb 308? (1977 GTB)

    Thanks,
    Greg
     
  3. rfeaster

    rfeaster Karting

    May 11, 2003
    52
    Sellersburg, IN, USA
    Full Name:
    Ron Feaster
    #3 rfeaster, May 22, 2007
    I believe on early QV's & carbed 308's, the water pump & alternator shared the same belt. If I rememeber correctly from other posts, the part number for that is 7M975 or 7M1000. Dayco's PN of 09390 is 5/8" longer than the 7M975 & 3/8" shorter than the 7M1000.
     
  4. 4redude

    4redude Formula Junior

    Jan 13, 2005
    732
    Fungus Corner
    Full Name:
    Brian Keegan
    #4 4redude, May 23, 2007
    See Service Bulletin #10-10 regarding the late QV 2 & 3 belts systems and the s/n range involved.
    Quickie tutorial:
    ALL 308 2v motors : 104336 WP/Alternator Gates #8903-0975 or 7m975.
    A/C belt is 105046, Gates #8904-0925 or 11m925.

    QV 2-belt cars (up to s/n 52349) : 107971 WP/Alternator, Gates #8903-1000 or 7m1000.
    A/C belt for USA version (York or Aspera compressor) is 105046, but for Euro cars (Sankyo or Sanden rotary compressor) itsa gonna be 124108, Gates #8904-0875 or 11m875.

    QV 3-belt cars, USA version : W/P is 121655, Gates #8903-0730 or 7m630
    Alternator belt was 123709 Continental, now 130493, Continental 10x800. A/C belt for USA cars is 105046.

    QV 3-belt cars Euro version : W/P is 121655, alternator belt is 121760 , Gates #8903-0750 or 7m750;
    A/C belt for rotary Sankyo or Sanden compressor is 124108.

    HTH
     

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