O.S. Engine OS28602200 Crank Pin Stop Screw for GT60 Engines  [OS28602200]

Crank pin stop screw overview

This O.S. Engine OS28602200 crank pin stop screw is an RC-scale engine accessory intended for use with GT60 engines. It functions as a retention element that limits axial movement of the crank pin, helping to keep the crank assembly correctly positioned during routine maintenance and reassembly.

The part is best described as a threaded stop screw that interfaces with the crankcase or crank assembly to prevent the crank pin from backing out or shifting while other engine work is performed. Installation is a short procedural step within engine disassembly and reassembly and should be carried out while observing the engine maker's normal service sequence.

In practical tuning and shop work, this stop screw provides a simple mechanical aid: it stabilizes the crank pin during inspection, bearing changes, and when setting up the crankshaft position before final assembly. As an RC-scale part it should be handled as a precision component and checked for secure seating each time the top-end or bottom-end of the engine is opened.