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Thread: Toyota recalling cars...

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    Toyota recalling cars...

    Toyota recalling cars because the wheel nuts can come off.
    I came across this over here as someone has ordered one but he was told it will not be delivered to the dealer until they sort the issue out.

    Toyota recalls bZ4X electric SUVs over wheel that could detach while driving - The Verge

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    It would be rather annoying if the wheel nuts didn't come off, especially when you got a flat tyre.
    If you don't like trucks, stop buying stuff.
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    Looking at the diagram in the link the front wheel appears to be fitted by using Bolts not your standard wheel studs and nuts.
    It also appears to be the left hand side that is problomatic, Maybe left hand threaded bolts will solve this issue like what is used on some trucks and old valiants.
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    So the recall is for 2,700 vehicles.

    Last year they sold around 8.5M,worldwide,the nearest competitor was around 5M.

    So in the whole scheme of things,less than half a drop in the ocean.

    At least the EV shouldn’t have any injector or DPF issues

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    Quote Originally Posted by trout1105 View Post
    Looking at the diagram in the link the front wheel appears to be fitted by using Bolts not your standard wheel studs and nuts.
    It also appears to be the left hand side that is problomatic, Maybe left hand threaded bolts will solve this issue like what is used on some trucks and old valiants.
    My first car........ 64 VW Type III wagon........ had studs on all wheels, all RH thread AFAIR and I never had a problem.

    I can't see how the rotation direction of the wheel would loosen LH or RH threaded studs because there is no direct rotational force being applied, it's all clamping force.

    Hub nuts are a different matter, that's why they (mine) have a thick keyed washer, a lock nut and a keyed fold over washer holding the whole shebang in place.......... all RH thread.

    cheers, DL

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    Quote Originally Posted by 350RRC View Post
    My first car........ 64 VW Type III wagon........ had studs on all wheels, all RH thread AFAIR and I never had a problem.

    I can't see how the rotation direction of the wheel would loosen LH or RH threaded studs because there is no direct rotational force being applied, it's all clamping force.

    Hub nuts are a different matter, that's why they (mine) have a thick keyed washer, a lock nut and a keyed fold over washer holding the whole shebang in place.......... all RH thread.

    cheers, DL
    The same sort of rotational force that is applied to the hub nuts is also applied to the wheel nuts studs to some extent, This is why some trucks and heavey vehicles are fitted with the LH threads on the Left side of the vehicle
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    Quote Originally Posted by trout1105 View Post
    The same sort of rotational force that is applied to the hub nuts is also applied to the wheel nuts studs to some extent, This is why some trucks and heavey vehicles are fitted with the LH threads on the Left side of the vehicle
    I can imagine that would be the case with a sloppy wheel rim hole to stud fit and non-tapered holes in the rims. ?

    DL

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    Quote Originally Posted by 350RRC View Post
    I can imagine that would be the case with a sloppy wheel rim hole to stud fit and non-tapered holes in the rims. ?

    DL
    Truck wheel spiders come to mind.
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    I all but lost a left dual wheel from my tractor (1 loose bolt left out of 10) and I lost a left front wheel from the cart of my air-seeder. I now swing on a 1m long bar on the tractor bolts and the cart's bolts are thread-locked and have a nut on the other side of the threaded hub flange.
    PS My brother in his teens replaced the remaining LH studs on his newly acquired AP6 after he snapped several trying to undo them as RH threads.
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    Early Chrysler, VW and some early European trucks had LH threads on the left side wheel studs/nuts/bolts. I think that was a bit of over cautious engineering. I once came across an old Snoopy MAN that had the front hubs swapped side to side, probably during a brake reline, ending up with LH threads on the right and vice-versa. It never suffered any adverse effects.
    I've never seen spiders with left hand threads, it would be pretty unnecessary with the studs/nuts so far from the centre of the wheel.
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