[Healeys] Splines and Wheels

[WILLIAM B LAWRENCE]

If the wheels are turning in the undo direction you are doing it wrong. The nut on the right wheel should have a left hand thread  and the nut on the left wheel should have a right hand thread. Imagine you are Superman and as the car is driving by you reach out and grab the center lock nut. If the nut would tend to tighten it is correct. If it would tend to loosen it is on the wrong side. If that's the case you are going to lose a wheel.

Bill Lawrence

> To: healeyron at yahoo.com; healeys at autox.team.net
> From: rchaskell at earthlink.net
> Date: Sat, 7 Nov 2015 16:28:37 -0500
> Subject: Re: [Healeys] Splines and Wheels
> 
> Ron,
> 
> When driving forward the wheels are rotating in the 'undo' direction. 
> If the splines are gone, the wheel will continue to rotate with the 
> knock-off when the brakes are applied.  That would explain the left 
> front wheel.
> 
> In the case of the rear wheels, the torque from accelerating will 
> tighten the knock-off.
> 
> Cheers,
> 
> Bob Haskell
> AHCA 3000 Mk I registrar
> http://www.ciahc.org/registry_3000mk1.php
> 
> On 11/07/2015 11:29 AM, Ron Mitchell wrote:
> > Figure this one?  I have had two Spline failures.
> >
> > 1.  Right rear wheel spline got wiped out and I heard a very loud
> > grinding sound when I applied the brakes.  I was able to drive home.  It
> > was almost impossible to get the Knock Off Nut off.  I was eventually
> > successful using a 20 LB sledge hammer.
> >
> > 2.  Left front hub spline got wiped out when I applied the brakes coming
> > up to a stop light.  I heard the same grinding sound.  I knew that the
> > spine was gone after the rear wheel incident.  I slowly drove into a
> > parking lot. The Knock Off Nut was loose.  I called a fellow club member
> > for assistance.  He brought me a floor jack and with the wheel off the
> > ground we tightened the Knock Off Nut as tight as it would go.  I then
> > proceeded to slowly follow him home using the hand brake to stop.
> >   Unfortunately when coming up to the next traffic light a guy cut me
> > off and I made the mistake of hitting the brake pedal.  Again the
> > grinding sound and then the wheel came off, continued down the road into
> > the side of a pick up truck.  Fortunately I was going slow enough that I
> > didn't damage anything.  The car just dropped down on the Brake Rotor.
> >   I retrieved the wheel and was able to get the car off the ground so as
> > to put the wheel back on and proceeded to my friends garage where I left
> > it until I could get it home and replace the Hub.  I have since replaced
> > all Hubs, Knock off and Wheels.
> >
> > Question why did the left front loosen and come off while the right rear
> > tightened to a point that I was ready to torch the wheel off?
> >
> > Ron Mitchell
> >
> >
> >
> >
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