Originally Posted by chuck911

Let me give you some idea just how far they were from having those bolts "torqued up and signed off by the mechanic."

Back when I was doing autocross or track every weekend I was also changing wheels and brake pads before and after every event. One time just before driving home from autocross I noticed the left rear felt loose pulling into the Texaco. Turns out I had completely forgotten to torque my wheels. I would always give each nut a good hard snap, probably about 40 lbs worth, then lower and torque. This time, no torque. Yet I was able to drive 90 miles to Bremerton, do 4 autocross runs, and go for gas before one wheel loosened enough to notice.

Your car made it less than 4 miles.

Torqued, my @.

Originally Posted by fast1

My recollection is that lug nuts are torqued at 96 lb/ft for a 991. It's not that easy to loosen a properly torqued lug nut with a wrench, sometimes a breaker bar is required, much less having the lug nuts just loosen by themselves. I always use a wrench to initially tighten the lug nuts, and then follow up with a torque wrench. I expect that in this incident the lug nuts were hand tightened, and then the tech got distracted and forgot to use a torque wrench.

Originally Posted by LexVan

It's now 118 ft.lbs for the 991's 20 inch wheels. And it's a bitch to break those wheel bolts loose. Hurts my hands. About 2 weeks ago, I bought a 24 inch piece of 3/4 black pipe at the hardware store to slip over my Craftsman 1/2 drive wrench. Works great.

Originally Posted by roadrat

I now always carry a torque wrench when our cars go in the shop. 70 miles after leaving Discount Tire, my wife's wheel came loose (not off) at speed causing vibration which pulled her into the wall adjacent to the highway. She was fine. Car, not sustained $7k in damage. And it ain't driven the same since the repairs.

Originally Posted by rlhyde

"Porsche said the wheel bolts had been torqued up and signed off by the mechanic."

That falls under the heading of "Total BS." What a surprise that the mechanic said he did nothing wrong. Who would have guessed he would deny it?

The least they could do is take responsibility for their negligence.

Originally Posted by Porsche_nuts

That's awful - and that's their business - to take off and put on wheels. I am assuming Discount Tires paid for the repairs?

Originally Posted by rlhyde

"Porsche said the wheel bolts had been torqued up and signed off by the mechanic." That falls under the heading of "Total BS." What a surprise that the mechanic said he did nothing wrong. Who would have guessed he would deny it? The least they could do is take responsibility for their negligence.

Originally Posted by kaution321

After they repair the car I would trade it back to the dealer for another new 991. Let the dealer cover the depreciation for their negligence. If they don't agree seek legal advice.