Technical Testing

Clock Deflection
Crankshaft deflection is measured to detect any misalignment of the main bearings, which can occur due to bearing wear or crankshaft bending.
The deflection is checked for both horizontal and vertical misalignment using a dial indicator placed at a predefined location between the crank webs. The crankshaft is then rotated in one direction, and measurements are taken at specific angular positions.
Crankshaft deflection should always be measured when the engine is at ambient temperature, and the results should be compared to baseline (reference) measurements to assess any deviation.