Centrifugal Advance
- Check distributor in test stand according to test equipment manufacturer's instructions. Operate distributor up and down RPM range. Check advance at all RPM settings specified. Adjust or replace springs, weights or cam as necessary.
NOTE: Centrifugal curve must not be adjusted by bending spring clamps of driving collar.
- If distributor has an adjustable driving collar for centrifugal advance, disassemble and lift shaft out. It is not necessary to remove breaker cam assembly from shaft. To adjust, loosen screws retaining driving collar. If collar is turned in direction of rotation, advance curve rises. Turning collar in opposite direction of rotation lowers advance curve.
- If distributor does not have adjustable driving collar, adjustment may be made by bending spring anchor tabs to modify spring tension. See Fig 2. To adjust for low speed operation, bend primary spring anchor tab outward to decrease advance, and inward to increase advance. For high speed operation, bend secondary spring anchor tab in or out to obtain specified settings.