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Seized Flywheel? How to Use a Three-Legged Puller the Right Way | Practical Boat Owner
30 September 2025 · 8 min · 2K views
What this video covers
Removing a seized engine flywheel requires a three-legged puller to apply even pressure across the component's mounting holes. First, remove the 17mm nut securing the flywheel to the tapered crankshaft.1:14 Select the appropriate bolts—in this instance, 6mm—to match the flywheel's threaded holes.0:18 Thread these bolts through the puller arms and into the flywheel, ensuring they are seated securely.3:42 Place the centre screw of the puller against the end of the crankshaft to provide a stable pivot point.3:42 Gradually tighten the centre screw to apply tension, using washers if necessary to prevent the bolts from bottoming out or damaging the threads.4:10 As tension increases, the flywheel will eventually break free from the tapered shaft with an audible pop.4:35 Always leave the securing nut partially threaded onto the shaft during the initial pull to prevent the flywheel from flying off suddenly once it releases.6:59
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