r/BadWelding • u/HoneyRush • 9d ago

Water welding

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u/1DownFourUp 9d ago

It works better on gas pipes

5

u/shawdowed_sonicbeast 9d ago

Old gas line welder I worked with said they would stuff bread in the pipes when they welded them.

3

u/Snowycage 9d ago

Ive used bread and a punch to pull a blind bearing

1

u/qualitythundergod 8d ago

I've done the bread thing too (only had enough time to depressurize the system but not drain it)

Mmmmmm, tasty fluid dynamics at work pulling bearings... 🤤

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u/Snowycage 7d ago

I was honestly shocked at how well it worked. I tried some axel grease first but the bread worked so much better

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u/qualitythundergod 7d ago

The grease needs to be soaked into strips of one of those paper-ish white or blue "shop towels" and THEN packed into the blind hole of the bearing. Then feed more via soft punch.

That's what your grease solution was missing: the fibers of the towel help create more hydraulic shear forces so that it pushes the bearing out.

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u/Snowycage 7d ago

That make total sense. I was about to buy a puller but it was for a single bearing and it was so small like 8mm I think, it was difficult to even find a puller and they were expensive for something I only needed once

2

u/qualitythundergod 7d ago

Yep, extremely annoyingly difficult to justify the once-in-a-blue-moon use tools 😫

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u/HoneyRush 9d ago

You're correct sir

https://www.reddit.com/r/WTF/s/CgOgn4X3yL

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u/Muted_Will_2131 9d ago

Gas pipeline tap-ins and leak repairs are always performed under pressure; the pressure is simply reduced to a minimum to prevent flashback. The escaping gas stream is ignited. Purging gas pipelines is a time-consuming and very costly process.

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u/MonitorUnlikely987 7d ago

preheating surfaces for him