308 Heater Hose fitting on RH Cylinder Head | FerrariChat
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308 Heater Hose fitting on RH Cylinder Head

Discussion in '308/328' started by bitsobrits, Jan 17, 2023.

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  1. bitsobrits

    bitsobrits Formula Junior
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    Nov 12, 2011
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    Steve
    #1 bitsobrits, Jan 17, 2023
    I tried a bunch of searches here and via Google, but can't seem to find an answer.

    In order to clean up the female threads of the hose fitting hole in the LH end of the RH cylinder head I need to know the thread size/form so I can use the correct tap. PN of the fitting is 106227 and parts sources show it as a nominal 16mm diameter, but is it tapered? Did Ferrari typically use BSP or BSPT threads in these applications? NPT? Some Italian standard?
     
  2. Rifledriver

    Rifledriver Three Time F1 World Champ

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    Brian Crall
    #2 Rifledriver, Jan 17, 2023
    BigTex likes this.
  3. bitsobrits

    bitsobrits Formula Junior
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    Nov 12, 2011
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    Steve
    #3 bitsobrits, Jan 17, 2023
    I like simple. I already have a 3/8 NPT tap, and it appeared temptingly close in dimension. Thanks!
     
  4. smg2

    smg2 F1 World Champ
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    SMG
    #4 smg2, Jan 18, 2023
    Ferrari used metric taper threads, yeah not a common thing. They exist but as Crall pointed out, switch for NPT to make it easier and simpler.
     
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