explainingproduction on Instagram: "The post shares a 31-second video demonstrating a DIY repair for stripped bolt holes in an aluminum engine cylinder head: filling with molten metal, drilling out the excess, and tapping threads for new bolts. (bio: "new owner"), it exploded in popularity overnight, amassing 1,023 likes, 306 replies, and 861,000 views, mostly from an Indonesian audience drawn to practical automotive hacks. Replies in Indonesian, like "Malahan kaya lebih gampang kan" ("Actually