328 injector bushing O ring seal size (The thin one) | FerrariChat

328 injector bushing O ring seal size (The thin one)

Discussion in '308/328' started by Derek Boulton, May 16, 2021.

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  1. Derek Boulton

    Derek Boulton Rookie

    Mar 12, 2020
    8
    Greeley, Colorado USA
    Full Name:
    Derek Boulton
    #1 Derek Boulton, May 16, 2021
    Can someone advise me the part number, and size if possible, of the 328 injector BUSHING O ring. This is the thin one that goes between the injector bushing and the intake air box, (NOT the small fat one that seals the injector to the bushing. I have those). Many thanks, Derek
     
  2. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    25,123
    30°30'40" N 97°35'41" W (Texas)
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    Steve Magnusson
    #2 Steve Magnusson, May 16, 2021
    Ferrari PN 101031
    Ones that I've purchased from AFP in the past measured:
    ID (free state) = 17.3~17.5mm
    cross-section (free state) = 2.5~2.6mm
    color = black
    material = unknown

    McMaster-Carr PN 9464K28 would also work OK:
    ID (free state) = ~17.1mm
    cross-section (free state) = ~2.6mm
    material = viton
     
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  3. Derek Boulton

    Derek Boulton Rookie

    Mar 12, 2020
    8
    Greeley, Colorado USA
    Full Name:
    Derek Boulton
    #3 Derek Boulton, May 20, 2021
    Many thanks, I did find some on-line at AW-Italian. Postage cost more than the O-rings but, hey, this is all part of owning a Ferrari I guess. On a related note, I would appreciate some advice from anyone who has experience of a good method to pull out the 328 injector sleeves without damaging them. Thanks in advance, Derek
     
  4. smg2

    smg2 F1 World Champ
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    Apr 1, 2004
    15,511
    Dumpster Fire #31
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    SMG
    #4 smg2, May 23, 2021
    In all honesty... I've tried just about everything I could think of over the yrs... No luck. Total luck of the draw. If they are 'fused' in place they are not leaking and best left alone. They are made of a compressed fibrous material that simply pulls apart like an onion and breaks apart in the most annoying ways. Best done with the runners off the engine. I'm not 100% sure if there's replacement ones, there might be. Point is, if your taking them out aquire replacements first.

    If they don't pop out easy... Leave them alone. Granted that's if they are not damaged or leaking.

    The 'C' clips are a bugger too if rusted.
     

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