GT4 A/C compressor - shaft seal | FerrariChat
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GT4 A/C compressor - shaft seal

Discussion in 'Technical Q&A' started by Harry, Apr 10, 2007.

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  1. Harry

    Harry Karting

    Nov 1, 2003
    101
    Germany
    #1 Harry, Apr 10, 2007
    The a/c compressor of my '74 GT4 needs a new seal. The compressor is an Aspera-Frigo HG 700 AP, according to the shop manual. My a/c shop will order spare parts, but maybe needs the York (or of any known supplier) cross-reference number. Does anybody have it?

    Regards
    Harry
     
  2. pippo

    pippo Formula 3

    Sep 25, 2005
    1,913
    FL
    Full Name:
    pippopotemus
    #2 pippo, Apr 10, 2007
    Hmmmm, shouldn't a good ac shop have the cross reference numbers for you, not you for the shop??
     
  3. Harry

    Harry Karting

    Nov 1, 2003
    101
    Germany
    #3 Harry, Apr 11, 2007
    Good point, in fact the shop tries to get the part. But I can "smell" some trouble of the trial and error category. Just want to make use of the experiences made by other Ferrari owners to avoid this.

    Best regards
    Harry
     
  4. maurice70

    maurice70 F1 Rookie

    Jan 25, 2004
    4,333
    Sydney
    Full Name:
    maurice T
    #4 maurice70, Apr 11, 2007
    Harry unless you want to go for complete originality I would get rid of the Aspera(york) and upgrade to a Sanden rotary type compresso.They are more efficient.The Aspera is a 2 stage compressor whilst the Sanden is a 8 stage compressor from memory
     
  5. Lawrence Coppari

    Lawrence Coppari Formula 3

    Apr 29, 2002
    2,192
    Kingsport, TN
    Full Name:
    Lawrence A. Coppari
    #5 Lawrence Coppari, Apr 11, 2007
    It seems to me to be a touchy procedure to replace the seal on an AC compressor. Many have tried it; many have had leaks. I did one myself and it leaked. I suppose there are some who can do it properly but they are a small minority.

    Ditto previous poster's comment about originality and using a Sanden. After my bad result replacing a compressor seal, I converted to a Sanden and have lived happily ever after.......
     
  6. LarryS

    LarryS Formula Junior

    Nov 14, 2003
    302
    Fremont, CA
    Full Name:
    Larry S
    #6 LarryS, Apr 11, 2007
    I think the problem is the poor quality Aspera compressor.
    Replacing the Aspera seal seems to rarely work,
    while I have replaced york seals without problems.
    I would use a rebuilt york before trying to fix the Aspera.
    I put a Sanden on my 308...
     
  7. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,385
    Frederick, Maryland
    Full Name:
    Brian Brown
    #7 Motob, Apr 11, 2007
    The seal is close to one of the York/Tecumseh seals, but is not an exact match. I found one that worked, but needed some modifications to fit properly (custom shim/spacer)
     
  8. Harry

    Harry Karting

    Nov 1, 2003
    101
    Germany
    #8 Harry, Apr 11, 2007
    Thanks for all the suggestions.
    If I choose to put in an CCI ER210R, will the clutch of the Aspera fit?

    Regards
    Harry
     
  9. jwise

    jwise Formula Junior

    Apr 2, 2003
    781
    Portland Maine
    #9 jwise, Apr 11, 2007
    Yes- if it's the same as the 308 clutch/coil.
     

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