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Daytona Cromadora Wheels

Discussion in 'Vintage (thru 365 GTC4)' started by Dino6304, Jun 28, 2023.

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  1. Dino6304

    Dino6304 Formula Junior

    Jul 27, 2020
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    Laurence
    #1 Dino6304, Jun 28, 2023
    My shop has just refinished my five 7.5/15 Cromadora wheels for my Daytona. I would like to find new metal valve stems-the hole in the wheels is .625” (15.875 mm).
    Any idea where I can source these. Thanks
     
  2. hlfuzzball

    hlfuzzball Rookie

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    #2 hlfuzzball, Jun 30, 2023
  3. Dino6304

    Dino6304 Formula Junior

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    #3 Dino6304, Jul 1, 2023
    Thanks very much
    I will be using a 1.25” length
     
  4. gcalex

    gcalex Formula Junior
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    #4 gcalex, Jul 2, 2023
    Last edited: Jul 2, 2023
    Finally got a chance to open a few boxes, and found that the "TR-416-S" looks to be right:
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    I have no way of knowing how original that stem might be (wheel has a 71 date code on it), but for what it is worth Bridgeport is an Italian maker of such things, so it seems unlikely that this was sourced from NAPA...

    Outside looks like this (apologies for it being all dirty; it is "silver" under all that);
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    The exposed smooth barrel is a little different from the Veteran stems, but there are several brands that have smooth exposed sections (though none seem to have the very square shoulder of the above).
     
  5. Dino6304

    Dino6304 Formula Junior

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    #5 Dino6304, Jul 2, 2023
    Thanks Alex,
    That tire valve is original.
    I modified a TR-416 from Advance Auto-it appears very much like the original and is 1.25” in length.
    I added an M10 black nylon washer and replaced the convex washer with an M10 stainless flat washer.
    Should work well
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  6. Edward 96GTS

    Edward 96GTS F1 World Champ
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    #6 Edward 96GTS, Jul 2, 2023
    Last edited: Jul 2, 2023
    why replace the convex washer?
    will a nylon washer flex or crack?
     
  7. Edward 96GTS

    Edward 96GTS F1 World Champ
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    #7 Edward 96GTS, Jul 2, 2023
    readplays likes this.
  8. Dino6304

    Dino6304 Formula Junior

    Jul 27, 2020
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    #8 Dino6304, Jul 2, 2023
    Good question
    I think the original used a flat washer. I also wanted to put even pressure on the nylon washer
     
  9. Dino6304

    Dino6304 Formula Junior

    Jul 27, 2020
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    #9 Dino6304, Jul 3, 2023
    I installed my tire valves on my Cromadoras earlier today. The M10 had nylon washer fit the outer side of the wheel perfectly. I did use the slightly convex metal washer that came with the TR 416 metal valve stem. This also fit perfectly.
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    swift53 likes this.

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