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new valve stems for Dino

Discussion in '206/246' started by Pantdino, Feb 2, 2006.

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  1. Pantdino

    Pantdino Formula 3

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    #1 Pantdino, Feb 2, 2006
    I'm replacing the tires on my 246. Are the original "nut on the outside" valve stems available, or is everyone going with the newer "nuts on the inside" type?

    Jim
     
  2. racerboy9

    racerboy9 F1 Rookie
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    #2 racerboy9, Feb 2, 2006
    Rutland's had these not too long ago. I bought a set from them--nut on the outside.
     
  3. MARQ

    MARQ Formula 3

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    #3 MARQ, Feb 3, 2006
    I've also seen the 'outside nut' type on eBay quite frequently.
     
  4. dm_n_stuff

    dm_n_stuff Four Time F1 World Champ
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    #4 dm_n_stuff, Feb 3, 2006
    My dealer had them last time.

    So did my dog before that fateful trip to the vet. :D

    DM
     
  5. Pantdino

    Pantdino Formula 3

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    #5 Pantdino, Feb 4, 2006
    Imagine my surprise when the tire installer at America's Tire had them in stock! I worried needlessly.
     
  6. 8valve

    8valve Formula 3

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    #6 8valve, Feb 4, 2006
    Can you post a pic? And how much were they?
     
  7. Pantdino

    Pantdino Formula 3

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    #7 Pantdino, Feb 5, 2006
    Last edited by a moderator: Sep 7, 2017
    Beneath the nut is a chrome washer--it's not a nut-and-washer-in-one-piece. These are on Cromodoras, not the chairs and flares wheel.

    These are not the same stems as are on my Campagnolos on my Pantera--those have no washer and the nut has a rounded edge, which fits into a rounded depression in the wheel.
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  8. Verell

    Verell F1 Veteran
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    #8 Verell, Feb 5, 2006
    A tip: The back of the valve stem has an o-ring that seals against the wheel. Sometimes the o-rings supplied with new valves aren't quite thick enough to seal properly & you'll have to locate a slightly thicker o-ring.
     
  9. carl888

    carl888 F1 Veteran
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    #9 carl888, Feb 6, 2006
    Last edited by a moderator: Sep 7, 2017
    Hi Jim,

    As far as I know, that is not the correct stem for any of the Dino variant wheels. All Dino wheels had an alloy stem.

    Although on a 16" wheel, the stem should be like this on in the pic.

    Regards,

    Carl.
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  10. Pantdino

    Pantdino Formula 3

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    #10 Pantdino, Feb 7, 2006
    the pic you posted appears to be what's on my Pantera's Campy wheels. So I'm sure you're right about it being correct.

    The ones I got were only a few dollars each and worked for the last 19 years of ownership, so they'll do in a pinch.
     
  11. ENZOSON

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    #11 ENZOSON, Feb 7, 2006
    Last edited by a moderator: Sep 7, 2017
    This is the valve stem type on my 71 246GT. The spare (an original 35 year old Michelin "X") also has this type. So I will assume that this is the original style.

    Hope this helps.


    Pietro
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  12. Pantdino

    Pantdino Formula 3

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    #12 Pantdino, Feb 8, 2006
    Actually that looks like the same thing I got at America's Tire with a rubber grommet added and a different cap. Maybe the factory used more than one type.
     
  13. abstamaria

    abstamaria F1 Rookie

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    #13 abstamaria, Feb 13, 2006
    I have been puzzling over the correct type stem as well. The 1972 Dino I have is supposed to be very original and unrestored (I have had it only a month). It has Pietro's steel stems on three wheels (rear and spare) and two shorter ones (front), also chromed steel. I have the Campagnolo wheels. I was thinking of fitting the aluminum stems Carl showed (available from Ferrari dealers), simply because they are lighter and look better, but I wonder if they are "original." A later model Italian car I have (1974-76) has had from new Campagnolos with the aluminum stems.

    Andy
     
  14. ENZOSON

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    #14 ENZOSON, Mar 8, 2006
  15. abstamaria

    abstamaria F1 Rookie

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    #15 abstamaria, Mar 8, 2006
    Although I prefer the short, aluminum stems found on most Ferraris, the more cars and pictures I look at, the more it seems that the long steel stems, like Pietro has shown, are the original item for the 246 (mine is a Tipo E).
     
  16. ENZOSON

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    #16 ENZOSON, Mar 8, 2006
    Andy,

    I cannot confirm w/ 100% cetainty that the valve stems that I have are originals but, the tires that I have on the car were replaced in 1976 (yes 30yrs ago) and the spare is a Michelin X (which is original./... 1971 vintage). The car has not been out of our site for 30 + years so it is a good assumption that that is what they are supposed to look like. Hope this helps.


    Pietro
     
  17. synchro

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    #17 synchro, Mar 9, 2006
    Chairs and Flares Dino #05702 has the same stems and sleeves as Carl888's in post #9

    Added:
    I've seen the stems as in #7 at the local tire shop in packs of 5
     
  18. Pantdino

    Pantdino Formula 3

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    #18 Pantdino, Mar 9, 2006
    That's the same thing I got from America's Tire for $2.00 each.
    It comes with two rubber grommets so it will fit wheels with two ranges of openings.

    I think Carl888 shows what was original--as on my Pantera with Campys.

    It's also possible, however, that different wheels have different openings. Note that Carl888's require a shoulder inside the hole for the retaining nut to fit against. They couldn't be used with a straight hole.

    Jim
     
  19. Pantdino

    Pantdino Formula 3

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    #19 Pantdino, Mar 9, 2006
    Actually I should say those are the same thing i got from America's Tire except that mine are shorter.

    It is not surprising to me that stems that have been on cars since the late 70's are not the original ones, as all businesses like to sell people stuff they don't really need..."Why not shiny new valve stems while you're at it, Sir?"
     
  20. HMB-Dino

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    #20 HMB-Dino, Aug 4, 2011
    The aluminum tire valve stems I bought from McCann's (PN 105069) apparently are too small for the opening in my wheels, so they could not be used. I found what appears to be about the same as ENZOSON's old post #11 of his 71 246GT (same year as mine), but they're available in 2 diameter's; .453" or .625". Which is correct for Cromodora's?

    http://priertiresupply.biz/index.php?main_page=product_info&products_id=809
     
  21. HMB-Dino

    HMB-Dino Formula 3
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    #21 HMB-Dino, Aug 4, 2011
    I should also point out that they have two lengths of the valve stem; one is effective length of 1.25", the other is 2.00". Which is correct for Cromodora wheels?
     
  22. abstamaria

    abstamaria F1 Rookie

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    #22 abstamaria, Aug 4, 2011
    Ron, sometimes just using larger rubber seals on the aluminum valve works. Andres
     
  23. abstamaria

    abstamaria F1 Rookie

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    #23 abstamaria, Aug 6, 2011
    Last edited by a moderator: Sep 7, 2017

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