Comments by "William Squires" (@williamsquires3070) on "Welding Explosion! Intense Bolt Extraction! Will it FAIL? Subaru Legacy Outback 2.2 2.5" video.

  1. Well, I see several problems here. 1) you’re trying to weld two or three different metals. The bolt extractor that broke off (my guess: hardened tool steel), the random nuts (God only knows what those are made of: Walnut? Peanut? Not-that-kind-of-nut? Deeznuts?), and finally the welding wire itself. 2) not much adhesion surface; not much to do about that but get the broken-off bolt extractor out of there, first. 3) the threads are all crud-filled now. If you have an old Philip’s-head screwdriver of a diameter just slightly less than the hole, and with a hardened/carbide-coated tip that you can sacrifice to the gods of car repair, jam the pointy end into the hole so it touches the broken-off bolt extractor, then whale away on the handle end with your impact hammer. The bolt extractor - while hard - is likely also brittle, and the hammering should break it up. Then just blow the chunks out with the air-sault gun! DO NOT use a plastic-handled screwdriver, or serious bodily harm or death may result! 😮
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  2. One thing to consider (after removing the remains of the bolt extractor) is: fill it with weld bead, then file and sand down as flush with the machined surface as possible. Then use some of the black RTV sealant around the perimeter (especially where the filled bolt hole is), and reinstall the water pump with the remaining good bolts, making sure to torque to spec. Keeping the coolant IN the engine is much more important-er than how neat the repair looks! 😅
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  3. When an engine fixing video becomes a welder fixing video - sparkages ensue! 😂😅
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  4. Yes, and make a note not to fight with Subaru engine water pumps anymore! 😅
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