Question about replacing the AC compressor in a 308 QV | FerrariChat
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Question about replacing the AC compressor in a 308 QV

Discussion in '308/328' started by johnk..., Apr 21, 2025.

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  1. johnk...

    johnk... F1 World Champ
    Owner

    Jun 11, 2004
    11,151
    CT
    Full Name:
    John Kreskovsky
    #1 johnk..., Apr 21, 2025
    Hi guys. I have an 85 308 GTB QV and I want to replace the York style compressor with a new similar unit. Not a conversion to the Sanden type. Having done my own belt changes I am familiar with removing the compressor so that's not a problem. But does anyone have any experience removing the clutch/pulley assembly from the compressor? Do you need any special pullers and such? I saw a thread last year where a guy replaced his but can't find it. Appreciate any insight would be helpful.

    Thanks
     
  2. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    36,769
    Cowboy Capitol of the World
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    Brian Crall
    #2 Rifledriver, Apr 21, 2025
    The ID of the hub is threaded. The 8mm or whatever retaining bolt comes out and a large bolt threads in and pushes against the snout of the crank. Its a taper and just pops off.
    Thats for the clutch. A large snap ring retains the pulley bearing and its not a tight fit.
    It pretty easy if you have the correct bolt. Its around 3/4 or so.
     
  3. johnk...

    johnk... F1 World Champ
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    Jun 11, 2004
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    #3 johnk..., Apr 21, 2025
    Thanks Brian
     
  4. Dockboy

    Dockboy Formula Junior
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    May 11, 2013
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    Maryland
    #4 Dockboy, Apr 21, 2025
    FYI
    The large bolt you use to screw down on to the shaft to push off the clutch assembly is SAE threads not metric.
     
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  5. johnk...

    johnk... F1 World Champ
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    Jun 11, 2004
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    John Kreskovsky
    #5 johnk..., Apr 21, 2025
    Good to know.

    Thanks
     
  6. Dockboy

    Dockboy Formula Junior
    Silver Subscribed

    May 11, 2013
    541
    Maryland
    #6 Dockboy, Apr 22, 2025
    Just looked through my notes...

    The bolt you need to press off the clutch is a SAE 5/8-11.
     
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