Drum Support: Inspection
- On all models, inspect overdrive cancel valve and spring and all internal surfaces for faults and visible wear.
- On JM600 models, spring should have free length of .906" (23 mm) and outer coil diameter of .1949" (4.95 mm). Installed length should be .630" (16 mm).
- On all models except RX7, measure clearance between seal ring and ring groove. Clearance should be .0020-.0079" (.05-.20 mm). Replace if clearance exceeds .0079" (.20 mm).
- On RX7 models, seal ring clearance should be .016-.063" (.04-.16 mm). Replace if clearance exceeds .0157" (.40 mm).NOTE: It is recommended to replace seal rings at overhaul.