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132 Comments
Not only do mechanics do this but technicians do this also that work on multiple machines
yea😁
torque mark. let's quality control inspectors know those bolts were torqued.
Is this a joke???
The dipstick mark??? The creator is a dip.
I was an airplane mechanic for 12 yrs..After we ran out of the paint pen I just started using fingernail polish.
using dye marker on a drain plug on cars I worked on saved my ass at vehicle service center when a customer tried to scam us by saying we didnt add oil during a oil change that they wanted a new engine. engine was inspected on a lift and my dye marker was broken. the company declined any repairs and told the customer to pound sand.
There is already a timing mark on the gear
Why the marks on top of the valve springs??
Impact Wrench ...
I’m not a mechanic, and I know this. I’ve caught many lyin’, thievin’, mechanics this way, too.
I'm an electronic tech and repair my own car(s), and I knew this.
it looks like it's a tooth out of time now
setting the timing chain
What being annoying
Wow, I would just finish painting all of the part, looks si cute
They are called inspection marks. Gm has been using them since atleast the 50's. I restore old corvettes for a living, mostly C1's. My 2024 Silverado has the same marks, same colors, in same places as a 58' corvette. There are more marks now, a few more colors, in places the truck has the car doesn't.
Lies gun owners know it too...
yep making sure nobody messes with your work behind you and when they do you know... always follow up with a photograph so that you can authenticate your marks.
when you are out of loc tite fingernail polish works as well too.
Trade schools would include this, among other learning tips.
not seeing a corresponding timing mark on the other gear . why would you mark it here?
matchmarking... for remembering the original position
seen it done and adopted the process as well
Only a mechanic knows? That's a ridiculous statement.
That's for reference. So if it goes bad or something happens, they know they were the last one who touched it. So, if you go somewhere else and that mark is smudged, they know you're lying. You're welcome. 👍
good teachings... this can also be used in hidden places to see if the mechanical is actually doing what they say...
if you think its a timing mark, then give up mechanics!
I'll say dont know how to use Loctite 😆
been doing this for years, after you torque the bolts. indicates you torqued the bolt to spec, and if anyone after you messed with it!
Pipefitters know this too
it's also a good way to see if someone is messing with your car first tape then glue
2171 in the Marine Corps. We kept nail polish in our toolbox for the same reason
Why not just use a sharpie. Finer point, better line and cleans off with denatured alcohol.
you like nail polish alot,hahaha
slip marks
timing off by one tooth...
the marks are to tell a mechanic if somebody's been there before, and messing around with things!
what, how to apply finger nail polish to metal? riiigghhhttt....
mechanics aren't the only people that use witness marks
I have used puffy paint as my quality control checklist
its to show if its been tampered with
WTF is a valve spring retainer?
So you are a mechanic, morgan?
My name is Mark…
marking timing
It Works
Just paint lines to make it look like they torqued it.