[TR] Lug nut torque spec - TR4

tr6parts at charter.net tr6parts at charter.net
Wed Jun 20 14:04:02 MDT 2012


Torque setting on a TR6 is 80 ft lbs.

I would assume.... that it would be about the same for a TR4.

Al


On Wed, Jun 20, 2012 at 12:48 PM, brad.kahler at 141.com wrote:

> Listers,
>
> Ok, I've finally got new wheels AND tires (195/65R15 Kumho) for my
> 4.  The wheels are the low priced Mini-Lite replicas that are on the 
> market.
> They come with chrome tapered style lug nuts.
> Since these are not steel
> wheels I'm not sure what torque spec would be appropriate.
>
> I know on Susan's
> spitfire race car where we use 7/16" wheel studs and the same style of 
> lug nut
> I have been using 65 to 70 ft lbs of torque.  I'm not sure if that 
> torque is
> appropriate or not, especially for a street car.  I've never seen any
> documentation supporting or refuting that that torque setting.
>
> I know after a
> 20 minute session its not unusual to have to re-torque the lug nuts 
> because
> they have loosened up a bit.  This will happen over a number of 
> sessions to
> where eventually they don't require re-torquing.
>
> Any advice?
>
> Thanks,
>
> Brad
> 1963 TR4
>
> ** triumphs at autox.team.net **
>
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