Daytona Wiper Arms | FerrariChat

Daytona Wiper Arms

Discussion in 'Vintage (thru 365 GTC4)' started by PDB, Sep 1, 2024.

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  1. PDB

    PDB Formula Junior

    Feb 1, 2011
    602
    Leicestershire, UK
    Full Name:
    Paul
    Could someone tell me the correct length for Daytona wiper arms please?

    Thank you.
    Paul
     
  2. Edward 96GTS

    Edward 96GTS F1 World Champ
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    Nov 1, 2003
    11,084
    im not sure if the parts book or
    any other manual states the length, but they are long. approx 18”
     
  3. PDB

    PDB Formula Junior

    Feb 1, 2011
    602
    Leicestershire, UK
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    Paul
    Mine are unequal lengths and I suspect they may be too long because I can only fit 16” blades when I believe they should be 18”.
     
  4. TTR

    TTR F1 Veteran
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    Timo
    Are you guys discussing wiper arm or blade lengths ? Or perhaps combined length of both from the pivot to the top end of the blade ?
     
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  5. Edward 96GTS

    Edward 96GTS F1 World Champ
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    Nov 1, 2003
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    approx 18” blade
     
  6. PDB

    PDB Formula Junior

    Feb 1, 2011
    602
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    Paul
    It is the length of the arms (centre of the spindle to the end of the arm with the blade removed) that I’m after.

    Thank you.
     
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  7. TTR

    TTR F1 Veteran
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    Thank you for clarifying.
    I don't have any (Daytonas) currently in the shop, but should have two in few weeks, so if you haven't figured this out by then, I'll try to remember and measure.
     
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  8. gcalex

    gcalex Formula Junior
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    Aug 16, 2010
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    I never found any sort of definitive spec, but after asking a fair number of folks, I personally went with 18-inch 46cm) blades, and 16-inch (41cm) arms (center of pivot to hinge of the blade).

    The above works-out pretty well, with the top of the blade sweeping about 4-inches (10cm) below the to top edge of the windshield.
     
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  9. Edward 96GTS

    Edward 96GTS F1 World Champ
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    source of blades and picture?
     
  10. gcalex

    gcalex Formula Junior
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    The blades currently on the car are from AutoZone.... :)

    Likewise, the arms are generic black jobs that someone fitted to "Federalize" the car at some point.

    I have a set of silver Arman arms and blades in a box somewhere, that i plan to fit as a final touch to get the car back to full Euro spec.

    One question that I personally have is whether the arms should have the "Arman" right-side-up on both arms when then are parked. My arms have the "Arman" upside-down on one of them when parked...
     
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  11. PDB

    PDB Formula Junior

    Feb 1, 2011
    602
    Leicestershire, UK
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    Paul
    I have Arman wiper arms and I’m pretty sure the text is upside down on the LH side arm.
    However, my arms are rather longer than suggested, with the left side longer than the right.
    When parked, both blades are directly above/below each other, which isn’t what I’m seeing on other cars. The left arm also has a bend in it.
    Image Unavailable, Please Login
     
  12. TTR

    TTR F1 Veteran
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    I was looking through some of my files and found couple of applicable references.
    Both arms (in two documented reference cars) appear +/-16" long and blades 18", which I recall appearing same in all the cars I've worked on or paid attention to for this detail.
    Based on my experience, for the wipers of this size to work on Daytona, they need to be positioned lower than in the above photo (or in most cars seen in pictures), but most owners or their mechanics/restorer tend to place them similarly to ones seen in the above photo, likely for aesthetics, but in my experience/observations, they don't really work correctly like that.
    Both arms generally need to have a "bend" at the top end, but might take numerous attempts to get "right".
    Almost all and likely undisturbed OE arms I recall seeing have had noticeable differences in the their "bends".
    And I believe there is or were no left or right side arms, so the "ARMAN" text would inadvertently be upside done on one side.
    These ^^ again are just based on my documentation & observations of mainly LH drive, mid-to-late production examples.
    YMMV.
     
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  13. TTR

    TTR F1 Veteran
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    Forgot to mention the sweep travel is adjustable.
    Or has been in ones I've restored, serviced or worked on.
     
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  14. PDB

    PDB Formula Junior

    Feb 1, 2011
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    Paul
    Thank you.
    The sweep travel is normally changed by swapping the large internal gear wheel in the motor. The gears are the same, but the crank pinion is varying distances from the centre, thereby adjusting the stroke. Mine doesn’t have the jiggle park feature, which possibly explains why my wipers are higher than you suggest.
    I need to find some new wiper arms I think.
     
  15. PDB

    PDB Formula Junior

    Feb 1, 2011
    602
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    Paul
    I’ve managed to pick up a pair of 18” ARMAN wiper blades to replace my 16” blades, so I now need to find some 16” arms to go with them.
     
  16. PDB

    PDB Formula Junior

    Feb 1, 2011
    602
    Leicestershire, UK
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    Paul
  17. PDB

    PDB Formula Junior

    Feb 1, 2011
    602
    Leicestershire, UK
    Full Name:
    Paul
    Could someone please measure the wiper arms on their Daytona and let me know how long they are please (and where you have measured from/to).

    Thank you,
    Paul
     
  18. gcalex

    gcalex Formula Junior
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    Hi Paul,

    I already posted the measurements from my car; they match what I believe is right, but it is hard to say whether the "bends" are right.

    I'm pretty sure that they are not right for early cars, where the left-hand (from the perspective of inside the car) seems to basically have been straight, but for post-no-park-function wipers, I'm not sure a straight arm would work very well.

    My no-park wipers position reasonably with the bends as they are. They are sort of high when not running, but I think that is expected when there is no park-function. Pics below:
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    I make no claim that my car is "correct", it is just the positioning that I thought seemed the best compromise. I feel like in the rain the lengths and sweeps work pretty well.

    Obviously, your mileage may vary,
    Alex
     
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  19. PDB

    PDB Formula Junior

    Feb 1, 2011
    602
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    Paul
    Thank you Alex, that is enormously helpful.
    I have been trying to find a pair of 16” arms, but so far to no avail. I’m going to see if it is feasible to shorten the arms I have to 16”.
    Thank you also to Timo. I had forgotten that you had both already posted the arm lengths, but the additional information and pictures are very much appreciated.

    Paul
     
  20. Edward 96GTS

    Edward 96GTS F1 World Champ
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    Nov 1, 2003
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    i think reoriginals have the correct arms in silver.
     
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  21. TTR

    TTR F1 Veteran
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    Within a past week or so I measured wiper arms on three different Daytonas and all were 16.5 inches from pivot center to blade attachment pin. Blades on all were 18 inches.
    One Euro and two US market, late production LHD examples.
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  22. PDB

    PDB Formula Junior

    Feb 1, 2011
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    Paul
    Great information, thank you.
     

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