RC Engine Crankshaft Clamp OS71530100 Compatible Workshop Tool O.S. Engine  [OS71530100]

Secure crankshaft tool for model engines

This clamp is designed for RC engine workshop tasks where the crankshaft must be held steady. It aids service operations like bearing inspection, seal replacement, and timing adjustments while avoiding claims about specific engine models. Treat it as a general clamp for compatible crankshaft sizes.

To use, seat the clamp over the crank snout, apply clamping force evenly to avoid lateral stress, and confirm the crankshaft rotates freely before completing reassembly. Use appropriate hand tools and moderate torque settings to protect mating parts. In tuning sessions the clamp helps ensure consistent shaft placement for repeatable adjustments.

Before purchasing a spare, measure shaft diameter and check for any obstruction around the mounting area. Follow the engine maker's guidance for tolerances if available. The clamp is provided as a service aid and not as an engine structural change.