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Why does nobody talk about checking torque on old engine mounts
I had a senior mechanic pull me aside last week after he saw me swapping out a Lycoming mount. He said I needed to Re-torque the bolts after the first 10 hours of flight, not just snug them up. I always thought if you torqued it once with the spec, you were done. Turns out the rubber in the mounts compresses and that throws everything off. He showed me a mount that had loosened up after 15 hours on a Baron 58. Has anyone else had a mount walk loose after a fresh install?
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oscar_ellis7h ago
Honestly, that sounds about right - rubber squishes, bolts get confused, and suddenly your engine is trying to make a run for it. Ngl, I've seen mounts loosen up worse than a teenager's first bolt job after a few dozen hours. Tbh, that old mechanic probably saved you from a very expensive and wobbly surprise.
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wendy_jackson6h ago
Wait, is it actually rubber that breaks down first on these mounts? I thought it was more about the metal bracket bending or the bolts backing out, not the rubber itself giving up. Or am I mixed up on how they fail exactly?
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