O.S. Engine OS71530100 crankshaft clamp for RC engine crankshafts, precision clamp accessory  [OS71530100]

Crankshaft clamp for RC engines

This is an RC-scale crankshaft clamp designed to secure crankshafts during engine work and maintenance. It serves as a focused accessory for hobby-grade engine servicing, keeping the crankshaft steady while you perform tasks such as bearing checks, seal replacement, or timing adjustments. The description deliberately avoids model-specific claims; treat this as a general-purpose clamp for compatible RC engine crankshafts.

Installation is straightforward for experienced model technicians: align the clamp to the crankshaft snout, engage the clamp evenly to avoid lateral stress, and verify free rotation before final assembly. Use proper hand tools and moderate torque to prevent damage to mating engine components. In tuning contexts the clamp helps maintain consistent positioning when setting ignition timing or performing repeatable adjustments.

When selecting a replacement or spare, confirm fitment to your engine by checking shaft diameter and accessible mounting points, and consult your engine manual for any model-specific tolerances. This clamp functions as a workshop aid, not a structural modification to the engine, and is intended for model-scale use only.