LifesAnesthesia

So the 992 wheels require 118lb/ft of torque. Can someone help me out and tell me how exactly you set an impact wrench to a specific torque? Do you just use the wrench until it tightens the bolt?

911topanamera

pretty sure this guys is messing with you....

you need a torque wrench, which you would set to 118ft/lb. It clicks and stops torquing (tightening) once you hit the desired ft/lb. you can watch a video on youtube on how exactly to set whatever model you have, but pretty easy. You can use an impact gun to loosely tighten and then use torque wrench to do the rest, unless you have some fancy auto torque impact driver. Tighten the lug nuts in a star pattern to ensure they are evenly torqued to eliminate vibrations, thats it.

aggie57

This. You should never use an impact wrench to tighten lug nuts. After a while you get a feel for the right torque and can do it using a wheel brace / lug wrench..

daddyscar

If you suffer from ocd, don't look up youtube videos on torque wrench calibration. You'll start asking yourself if you have a quality torque wrench and if it's been calibrated correctly recently. Worse, you don't even trust the torque wrench at your dealer. 118 ft/lb, seriously for lug nuts? Not 115, 120, 118.5? Do I need to get a $500 Snap-on torque wrench and how often do I need to get it professionally calibrated?

Mercuriell

There are mechanical and électronique torque wrenches- you set the desired torque and pull - the electronic ones beep and the mechanical ones click when the setting is reached - clean the bolts before assembly but don’t use ANY lube/loc on them. Best to use a ratchet or speed wrench to progressively tighten up in a `star’ manner eg start 2 -> 7 -> 5 -> 11 -> 6 . An impact wrench ok to unscrew bolts although a ‘breaker bar’ useful to initially loosen - but not used to tighten as can over torque. The 2nd post is messing with you 🤪

A mounting bolt is used when replacing wheels as is a 19mm alloy wheel socket.

https://www.suncoastparts.com/product/99957107430.html

PBM

Correct , in fact the owners manual specifically states this.

LexVan

And when storing your torque wrench, dial it to 0 ft.lbs.

eagle1960

German engineers work in the metric system. The spec is 160 N-M. I'll leave it to you to convert that to ft-lb.😁

Michigan 992

Having worked with more than a few cars that uneven tightening of the lug nuts would cause brake rotor warping on the first heat cycle, here is a simple procedure I use after the wheel is on the hub.

1) On a five lug wheel run the fasteners down so they are all just beyond finger tight. Now the wheel is correctly seated in place.
2) Skipping every other lug work your way around the wheel tightening them to ~1/3 the final torque using a torque wrench so they are even
3) Repeat step 2 at about 2/3 the final torque
4) Repeat step 3 at the final torque
5) After the car has been driven enough to heat cycle the brakes repeat applying the final torque

I have experienced a lot of experts missing on hand applied and judged torque over the years. If I make a mistake torquing the wheel nuts, then I am at risk for rotor warpage that I absolutely hate dealing with. Clicker style torque wrenchs are a cheap tool to have in your box along with a short extension and a good socket dedicated to your Porsche wheels.

LifesAnesthesia

Lots of food info, thanks guys

Kitc2246

IMO a Harbor Freight torque wrench is more than sufficient. Trust me there is plenty of safety factor in the recommended torque setting. As already mentioned dial the wrench back after using. Use a star pattern. Torque the wheels when cold.

BigLoue

Where can I find the torque setting and lug size? Thanks

Mercuriell

The bolts have a 19mm hex top and the tightening torque is found in the owners manual -seems to be pretty standard 118 lb/ft or 160 Nm for most 5 lug P wheels

inastrangeland

This....

John Mclane

My stuff:
Sunex low profile floor jack
Impact wrench Porter Cable
Jackpoints
Generic stud guide
Pittsburgh torque wrench ($20 at Harbor Freight)