[Healeys] The Saturday Night Rant - Part III Knock offs

Bob Spidell bspidell at comcast.net
Sun May 10 10:06:48 MDT 2020


I've posted this before, but it seems customary to cover the same topics 
here over and over ;)

https://www.motorsportmagazine.com/archive/article/may-2001/41/r-u-d-g-e-whit-worth-hub



On 5/10/2020 8:59 AM, Perry via Healeys wrote:
>
> Michael et al,
>
> Contemplate the mechanical connections between the hub extension, wire 
> wheel hub and the knockoff.
>
> The hub extension is bolted to the axle using tapered nuts that seat 
> in the face of the extension. No rotational movement.
>
> The wire wheel is connected to the hub extension via the splines. The 
> tolerances in the splines may allow for some rotational movement but 
> they have to be loose enough to get the wheel off the extension.
>
> What else holds the wheel in place…the knockoff. The cone in the knock 
> off forces the wire wheel hub against the hub extension, The contact 
> interface is the tapers on the hub extension and the wire wheel hub. 
> You know the little area that we are frequently reminded to apply a 
> smear of grease to stop the little squeaky noise at low speed. If the 
> knock off is tight enough there is not movement here either.
>
> So Mike, if you see movement between the knock off and the wire wheel, 
> the knock off is not tight enough.
>
> Suspect that the folks that developed knock offs understood the 
> problem of owners/mechanics not getting them tight enough and used the 
> handed (left and right) threads that self tighten.
>
> Gentlemen, remember your Mother today!
>
> Perry
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for 
> Windows 10
>
> *From: *Michael MacLean <mailto:rrengineer.mike at att.net>
> *Sent: *Sunday, May 10, 2020 12:57 AM
> *To: *Healeys <mailto:healeys at autox.team.net>
> *Subject: *[Healeys] The Saturday Night Rant - Part III
>
> At my age (approaching this side of 70) I am on lock down at my 
> house.  I even have my groceries delivered.  I will only go out to eat 
> at a drive through with an N95 mask on.  My Boston Terrier that goes 
> with me does not wear one.  He refuses, but he is only three years 
> old.  So, being sequestered to my domicile I have taken up the 
> restoration of my BN2 with a vengeance.  I did not know I knew so many 
> off color phrases.  Everything to be done on this car is difficult due 
> to parts incompatibility, parts fit, parts unavailability or just  my 
> general ignorance and/or incompetence.  This evening I finished 
> mounting the right side front hub with all new parts.  I thought I had 
> done a nice job.  No lateral play in the hub.  Turns easily without 
> binding.  The correct amount of shims after much trial and error.  
> Disc brake conversion was mounted and braided stainless steel flex 
> brake lines hooked up at both ends.  I have yet to run the brake 
> lines.  Maybe next.   This rant is about the brand new Dayton wire 
> wheels.  I mounted the wire wheels which have temporary used tires on 
> them so I can move the car when it is down off the dollies.  After 
> mounting the wheel I gave the two eared knockoff several pretty good 
> whacks.  Now the moment of truth.  I grabbed the wheel at 9 and 3 
> o'clock position and pulled straight back and forth.  Yay! No play, 
> but when I rocked the wheel it moved slightly.  I thought it was the 
> hub, but looking closely you can see the wire wheel hub rocking back 
> and forth in the knockoff!  What!?!  How hard are you supposed to hit 
> those knockoffs?
>
> Mike MacLean
>
>

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