Lycoming Torque Plates down spring ST-389 Crankcase Separating Tool

ST-389 Crankcase Separating Tool

TK 1817922-4

it can deform a non-heat treated torque plate

The plate not only maintains a clamping force

These probes are difficult to access on a Continental engine

Lycoming Torque Plates down spring ST-389 Crankcase Separating ToolThese Lycoming Torque 'Hold Down' plates are offered as a direct replacement for Lycoming PN# ST 222. When installed, the Torque Plates prevent the Crankshaft Bearings from rotating out of position by maintaining the clamping force on the case when cylinders are removed. The plate not only maintains a clamping force, but it also protects both the connecting rod and the case from damage caused by the connecting rod contacting the case during engine