Does Anybody Ever:
 

Follow the service manual and use new bolts and nuts where it specifies?

Yes but not always. Depends on the application.

depends entirely on whether i planned the job out in advance, or if new bolts can be delivered by tomorrow.

i've always re-used the copper drain plug crush washer...

Usually...

Not on head bolts or snapped wheel studs

I've seen a number of how-tos on a variety of mod procedures and I can't think of any of them that mentioned the fastener replacement issue. I swapped out my stabilizer bar bushings (front and rear) recently. At both ends, the FSM specifies new fasteners. The front subassembly uses eight 10mm (shank diameter) bolts that get torqued to 44 lb/ft, That seemed really low considering the number and size of the bolts. I reused. Similar with rears.

Over the years, I've generally seen the bolt replacement requirements in torque-to-yield situations. I've religiously applied the replacement rule in those cases. Other places like brake caliper bolts on roadracing motorcycles where the calipers are coming off and going on like neon signs - generally not. Subie seems to take the approach that "if you turn the bolt or nut, replace it." I chalk it up to litigation paranoia, but ... Thanks for the input.

Sounds like you have ample experience to make appropriate decisions. You gots dis.

"Of course, iffen you are going to torque them down till they twist off, you would have to replace them - :rolleyes:".

(sorry folks, I told Bubba to stay away from my computer).

:iono:

Yes and no.

Depends on the situation

:slap: You planning and practicing on running for a political office?

definitely maybe.

Ho for HOA nosy parker!

Yes and especially under warranty.

Yes, almost always.

If I don't it's because I missed something in the parts list and I don't have unlimited time to take care of it.

Except when it's a heat shield on the matrix. Those are held on by coat hangers and some rope where it's not too close to the exhaust.

If you're really careful scraping off the sealant, you can reuse it.

They make new nuts and bolts?

Yep. That was similar to cousin Leon's approach. "We don't need no stinkin tork rinchees. Just tighten 'er till she strips and back off a 8th of a turn."

What part of deep east Texas is Bubba from?

Only for armatures. Seasoned mechanics have a bucket of bolts and nuts for every occasion.

Nah, it's like fruitcake, the existing ones just get passed around.

Bubba speaks highly of his cousins in and around Buna, TX.

:D

Are you trying to tell us that we need new nuts?

Sometimes yes, sometimes no. If it's a stretch bolt situation I will and crush washers always get replaced but many other applications a bit of loctite is an appropriate solution. I've been rolling with this MO for a few decades now and haven't had anything (terribly) important fall off my vehicles.

New lug nuts, every rotation. I take no chances.

Critical fasteners are critical.

Well Lug/wheel nuts are critical

Weld nuts should never be reused.

Typically I use new fasteners when I've lost the originals

Or, I replace them with cable ties, or ducr tape

If, by chance, I have not lost said fasteners, I do use one of the 3 variants of locktite I have on the shelf

And always with the help of my trusty torque wrenches, both of which, have never actually been properly calibrated, apart from my firm belief in hopes and dreams

Unless head bolts, I always play the new game with head bolts, typically, disclaimer: above mentioned, uncalibrated torque wrenches are used with head bolts, just like every other fasteners that I can find a value or procedure for

My cars and bikes are typically held together with hopes and dreams typically

Buna is like a suburb of Vidor. Lots of, "interesting," people in Vidor.

I can imagine ......... :eyebulge:

They sure are. Thankful they aren’t marked “R” for replace each use.

It's also an elastomer.