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Broken light switch and a frozen hub (85 Testarossa)

Discussion in 'Boxers/TR/M' started by teveo, Sep 30, 2018.

  1. teveo

    teveo Formula Junior

    Oct 1, 2005
    296
    Up North, deep South
    Full Name:
    Trond
    I could usually jog the light stalk/switch to turn on and off light but it just gave in now and is stuck in parking light whatever is turned or twisted.

    According to information in the cross-ref thread I am ordering a Lancia part (176314180) and hope to fit it. My plan is to identify, cur and transfer the Ferrari contacts as they are quite different from what I see on Lancia stalks.

    First problem was a frozen steering wheel hub, in short I tried oil, cold shock, heat but whatever I did it was stuck. I used a puller but the force destroyed the hub to a point where I may be able to straighten the top cage.

    I have found a few vendors that sell the hub but does anyone have a link or info about potential "cross references" on the hub? The hub is not splined, it is a single "slot" that is slide onto. I will be using some antifreeze oil-grease when I mount it the next time.

    The only special tool needed was the ring nut socket at 28 mm, I got it from a UK specialist. I had to use a "strongarm" to release the nut it was mounted with a lot of torque.

    Below is a photo summary showing the white rotating spindle that was split.

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  2. teveo

    teveo Formula Junior

    Oct 1, 2005
    296
    Up North, deep South
    Full Name:
    Trond
  3. xplodee

    xplodee Formula Junior

    Jan 3, 2017
    738
    Allentown, PA
    Full Name:
    Tim
    Eager to see how this goes. At about $199 that Lancia stalk is a great value, hope its straight forward.
     
    Melvok likes this.
  4. WestCoasta

    WestCoasta Karting
    Silver Subscribed

    May 18, 2016
    184
    california
    I’m several months into shopping for a TR and this post just made pucker haha. Part of the game tho.... gotta love it!:). Good luck with the fix
     
  5. jmaienza

    jmaienza Formula Junior

    Jan 8, 2009
    440
    Massachusetts
    Full Name:
    Joe
    Verell at unobtainiumsupply.com will rebuild your Testarosa switch.
     
  6. teveo

    teveo Formula Junior

    Oct 1, 2005
    296
    Up North, deep South
    Full Name:
    Trond
    Thanks but I'll try to convert the Lancia piece, its already ordered.

    Now on the hub, there is bad news. I've gotten 3 responses so far about the part no longer available.

    Somewhat "good news" , Luisi still make the adapter for their steering wheels and it may be fine while searching for a salvaged hub. I'll order a Luisi one so that I can move the car around.

    https://www.volantiluisi.it/categoria-prodotto/mozzi/
     
    Melvok likes this.
  7. xplodee

    xplodee Formula Junior

    Jan 3, 2017
    738
    Allentown, PA
    Full Name:
    Tim
    Contact GT Car Parts in Arizona. They have many TR's in inventory for used parts.
     
  8. teveo

    teveo Formula Junior

    Oct 1, 2005
    296
    Up North, deep South
    Full Name:
    Trond
  9. Melvok

    Melvok F1 World Champ
    Rossa Subscribed Owner

    Jul 25, 2008
    12,716
    Amersfoort, Holland.
    Full Name:
    Mel
    Good work !

    The oem stalks seem to be $1500 or even more …. I have seen people paying that ….
     
    Natkingcolebasket69 likes this.
  10. teveo

    teveo Formula Junior

    Oct 1, 2005
    296
    Up North, deep South
    Full Name:
    Trond
    Got the parts and tried to use the Lancia piece but after 2-3 hours trying all cabling combos I recon:
    • Lancia stalk has significantly less cables going to the loom
    • Lancia stalks wiring is of smaller diameter than the Testarosssa wiring
    • There is a difference in the mechanical part of the wiper switch(brass parts) and I could not get intermittent to work
    I ended up carefully drilling out the four brass "rivets" around headlamp "switch/housing" and swapping the lever w/cam and surrounding plastics over to the old "Ferrari stalk".

    Secured the housing with 3 small diameter bolts and nuts and a small self tapping screw for the last rivet since this one is kind of hidden inside the housing. Works like a charm.

    At approx $140 the small plastic cam is expensive ;) but at least the indicator is the same and perhaps quite a few parts from the wiper side also can be used in case something brakes.


    Over to the Luisi hub/boss. This piece is perfect fit, it even comes with new screws. The only challenge is the ring securing the horn button, you will have to work this one a little, I ended up modifying it slightly to make it work. This piece is a fine alternativ to the expensive / out of stock Momo piece if you ever need a new one.


    NEW LANCIA STALK
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    IDENTICAL IN SIZE AND NUMBERING, LANCIA IN THE BOTTOM
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    MUCH LESS WIRING IN LANCIA STALK AND SMALLER DIAMETER ... HMM
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    LUISI HUB - BOSS - THIS ONE IS WELL WORTH THE 45-50 EUROS
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    BRASS RING FOR HORN IS INTEGRATED
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    HILL ENGINEERING SOCKET - 28 MM (FOR 85 TESTAROSSA), GBP 45 AND A NECCESSARY TOOL
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    LUISI HUB BLEND IN AND LOOKS ORIGINAL (BLACK SHRINK PAINT)
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    Jakuzzi likes this.
  11. Natkingcolebasket69

    Rossa Subscribed

    I posted this same post last year and did the same.
    Eventually the issue will be that the plastic will break again so i ended up sending it to oddparts in California for restorarion.


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  12. teveo

    teveo Formula Junior

    Oct 1, 2005
    296
    Up North, deep South
    Full Name:
    Trond
    The plastic part may be somewhat better "formulated" now but yes I, it's bound to break again in 2045! ;)
     

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