jetrainor

Been searching through previous posts looking for a consensus on wheel lug torque. I'm pulling all the wheels and cleaning wheel wells, wheels, etc for spring. The only number ive been able to find is tighten to 94 ft lbs progressively. I think last year i only toruqed to 75 ft lbs.
Any thoughts on this?
87 euro auto

hacker-pschorr

Mid 90's is the general rule for wheel torque. Unless you apply anti-sieze, then who knows

AO

94 is correct.

RDS928S

My Nuts turned blue when I torqued them @ 92.

Rich

ew928

My wacky metric converter has me torqueing to 96.5 ft/lbs.
But then how accurate is that el cheapo click torque wrench I'm using.

Ernest (NYC)

Panzer9

I set @ 96lbs/ft

SharkSkin

Funny you should mention that -- I just found out that Porsche recommends anti-seize(copper) on lug nuts and torque to 96 ft/lbs...

ew928

Dave,
Is that anti-sneeze on the threads or just the lug nut/wheel mating surface.
The dome-shaped part of the lug that actually presses on the wheel.

I've been under the impression that lugs were to be torqued dry.
Somebody enlighten me.

Ernest (NYC)

dr bob

Copper ( no graphite) anti-seize on the cupped surfaces only, nothing on the threads. Torque to 96lbs/ft.

GregBBRD

Not sure I agree with this. I've never seen Porsche put anything on the cupped surfaces from the factory, nor have I ever seen any reference to this in any workshop manual.

greg

SharkSkin

Both, according to a Porsche Tech Bulletin(attached). There is another page where they say do the same with the winter wheels.

I have habitually used regular anti-seize on all lug nuts of every vehicle I've owned, but never put it on the cone or cup surface -- so this is news to me. I found it while looking for general references to anti-seize.

Vilhuer

Optimoly HT does not affect tightening torque. Wonder how it does that?

Tom928

I believe it is because of the moly content, which lowers the contact friction to the point where it is negligible.

ew928

Of course the tech bulletin didn't happen to mention how to align the mounted tire/wheel assembly to the damn red dot on the stud.
I'm with Erkka on the dry versus lubed torque value. Did they botch up the translation when it claims copper anti-sneeze does not affect torque values?

Nice to note Porsche recommends driving gently for the first 1000km on fresh tires as a bed-in period.

Ernest (NYC)

SharkSkin

It may be that the copper particles add enough friction to counter the lubrication.

Or, it could just be a translation issue, and what they meant was "Use the recommended torque, do not use a reduced torque setting to compensate for the Optimoly".