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davidm2232 t1_j470673 wrote

Reply to comment by Different-Truth7668 in What does it mean to torque a screw to a specific torque? by alucemet

>but outright dangerous with alloy rims.

Not true at all. Mechanic/tire shops don't have every customer that had their wheels pulled off come back to have them retorqued. If they are torqued properly initially, no need to retorque.

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Different-Truth7668 t1_j474b8s wrote

For example, i forgot to retorque my alloys in the autumn when the mandatory winter tire months came on. When i finally did it, some of the bolts were already "finger tight".

Almost every garage i have worked at has reminded customers about retorque when they get their car back.

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[deleted] t1_j49ktq2 wrote

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spideywat t1_j49m0xk wrote

It has nothing to do with the torque value and everything to do with the material. I have had dozens of vehicles, driven hundreds. Aluminum rims often come loose. The nature of the material. I have torque wrenches and a big shop.

On one set of rims it takes about 15 minutes to torque each wheel the first time then a short drive and some of the nuts loosen. 2015 f350. The Ford diesel mechanic noted the same thing and he hates those rims too.

I was at a garage where the mechanic told the customers that retorquing was bull and he had never done it once in his life. He was a fool.

Wheels come off less often now then 30 years ago, after which they introduced retorquing tires.

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spideywat t1_j49mzcy wrote

We have put millions of kms on our vehicles. We know about them loosening, however, there will always be people saying it is nonsense or an error in the initial torque. Follow your pattern, set the proper torque, every once in a while some will loosen on their own. That’s why we have pre trip inspections and a ton of regulations on our vehicles.

And if you over tighten then you are weakening the studs and can ruin your threads. Ounce of prevention as they say.

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