New CV Flange won't fit half moon washers. Do i need them? | FerrariChat
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New CV Flange won't fit half moon washers. Do i need them?

Discussion in '308/328' started by Speedsterbeast, Mar 30, 2024.

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  1. Speedsterbeast

    Speedsterbeast Rookie

    Nov 20, 2018
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    Thunder Bay Ontario
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    Cory Zyromsky
    #1 Speedsterbeast, Mar 30, 2024
    Hi gang, I just replaced my inner cv boot and flange on 1982 308. I didn't notice unti I greased it and went to install it, that the new flange has extruded dimples that will not allow the half-moon washers to be used. The original flange got bent a bit when I removed, but I guess I could reuse it. Although I'd have to clean and rebuild it again. Does anyone know if these dimpled ones simply do not require the washers? Do I just use regular flat or lock washers? Or do I try and straighten and rebuild with original flange? Any help would be greatly appreciated. Thanks for reading!

    -Cory Z
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  2. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    Jan 11, 2001
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    30°30'40" N 97°35'41" W (Texas)
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    Steve Magnusson
    #2 Steve Magnusson, Mar 30, 2024
    That flange design just requires washers IMO. The "forming" provides the same extra support that the arced pieces provide, but it will be a rather special washer -- about same thickness as the arced piece (which is rather thick for a 10mm diameter washer) and a rather small OD for a 10mm diameter washer. I think a flat washer would be fine, but this style of lockwasher would be OK, too (and it has the necessary extra thickness and small OD):
    https://www.mcmaster.com/91190a560
     
  3. smg2

    smg2 F1 World Champ
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    SMG
    #3 smg2, Mar 30, 2024
    They're tq distribution plates. Even Porsche used them, but they are shaped to fit. This is what you'd be looking for. Porsche bolts the reverse of Ferrari, the output flange on the Porsche is threaded so the bolt passes thru the other way. Ferrari uses captive nuts, so make sure the nuts will be held captive by the Porsche style flange.

    https://www.pelicanparts.com/More_Info/91133219100.htm?pn=911-332-191-00-M127&msclkid=0482c0b24bfc194aad8da6bad608d953&utm_source=bing&utm_medium=cpc&utm_campaign=Shopping%20Ads%20-%20Porsche&utm_term=4580634170083223&utm_content=Porsche%20Catch%20All
     
    350HPMondial likes this.
  4. smg2

    smg2 F1 World Champ
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    #4 smg2, Mar 30, 2024
    Steve Magnusson and 350HPMondial like this.
  5. Speedsterbeast

    Speedsterbeast Rookie

    Nov 20, 2018
    31
    Thunder Bay Ontario
    Full Name:
    Cory Zyromsky
    #5 Speedsterbeast, Mar 31, 2024
    Maybe I'll just grind out the OEM ones that I already have to fit. Thanks for the help all!
     

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