Stripped a bolt on a Lycoming oil filter housing

I was rushing through an oil change on a Lycoming engine. The bolt felt tight, so I gave it another turn. It stripped and would not move. Had to drill it out and fix the threads, which took forever. Now I always grab a torque wrench for oil filters. What's your trick for stuck bolts?

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3 Comments

nathan2827mo ago

Reminds me of when I cross-threaded a spark plug once.

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joseph4917mo ago

Why is cross-threading a spark plug always seen as a huge mistake? @nathan282, that kind of thing happens to everyone and it's not the end of the world. You can often fix it with a simple thread chaser or even just start over carefully. I've known people who drove for months with a crossed thread that still sealed fine. It's a common fix in many garages without replacing the whole head. Those little screw-ups actually make you better at working on cars later.

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robinson.leo7mo ago

Yeah, I've definitely paid that stupid tax before. I once cross-threaded one so bad the chaser just laughed at me. You're right though, it's how you learn to really feel for those first few turns.

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