Originally published by r/legotechnic

Houston, I have a problem gray gear - McLaren P1

March 30, 2026
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The only way the Pistons move is for me to manually turn the gray gear. I am about to start bag 15. Any advice would be greatly appreciated, especially best way to do a partial teardown at this point to fix the problem. submitted by /u/SnooMaps5089 [link] [comments]

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