Mechanical Engineering

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03/06/2026

When I say Pontiac… what car comes to mind first?

03/06/2026

LOOKS EASY, BUT 95% GOT IT WRONG!
12➗3➕3✖️3🟰?

To whoever designed this old pipe cutter with a mystery blade hiding on the side… I need answers.I understand the cuttin...
03/06/2026

To whoever designed this old pipe cutter with a mystery blade hiding on the side… I need answers.

I understand the cutting wheel. I understand the rollers. I understand the screw handle. But then there’s this extra pointed little piece sitting there like it has a secret job nobody bothered to explain.

Let me be clear: I’m not trying to use an old tool wrong and turn a simple pipe cut into a plumbing crime scene.

Is that piece for reaming the inside of the pipe after cutting? Deburring the edge? Cleaning out the cut? Or is this one of those old-school tool features everyone over 70 somehow just knows?

Tool people, plumbers, and garage experts — what is this spike actually for?

03/06/2026

When I say 1972… what car comes to mind first?

What does this look like?
03/06/2026

What does this look like?

[2020 Chevy Equinox] I was attempting a rear brake pad replacement and blew the piston out of the caliper along with wha...
03/06/2026

[2020 Chevy Equinox] I was attempting a rear brake pad replacement and blew the piston out of the caliper along with what seems to be the brake line nozzle? I'm not sure if it broke off the line or just came unthreaded. Is this something I can solve or am I best off getting it towed to the dealer?

Which welding is best? 🤔💬 1-2-3-4-5-6
03/06/2026

Which welding is best? 🤔💬 1-2-3-4-5-6

I overtightened the transmission fluid fill bolt and ended up cracking the housing around it. Now it’s leaking, and JB W...
03/06/2026

I overtightened the transmission fluid fill bolt and ended up cracking the housing around it. Now it’s leaking, and JB Weld isn’t holding.

I’m trying to figure out the best way to fix it properly before I make things worse. Is this something that can be repaired, or am I looking at replacing the housing/case section?

I know it was my fault, so I’m just looking for realistic advice from anyone who has dealt with something similar.

Lc500 came in, said multiple warning lights came on, engine was noisy and leaking oilOil leaking from crank seal it appe...
02/06/2026

Lc500 came in, said multiple warning lights came on, engine was noisy and leaking oil

Oil leaking from crank seal it appears, engine was still full of oil. Only codes were multiple cylinder misfires and engine stall history, after inspecting it started it and shut it back off instantly, had the bearing locking up squeak, exhaust coming out the intake and marbles in the oil pan sound. Pulled oil filter and found the worst glitter ive ever seen. Freeze frame showed codes set at 6,880 rpm in 2nd

02/06/2026

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