See when it does it. At idle in first with the clutch down if It’s silent but appears when in neutral with the clutch up then the only difference is the compensator is spinning in neutral and not when in 1st. Gently lift the clutch in 1st without throttle will load the drive enough to stop any chatter
??
The compensator spins with the engine at all times that it is running; the clutch is between the output of the compensator and the gearbox.
