Noisy Operation
Before removing a transaxle to diagnose and repair a noisy condition, verify the correct level and type of fluid is installed in the transaxle. Abnormal wear and damage to the internal components is frequently the end result of insufficient/improper lubricant.Transaxle noise is most often a result of worn or damaged components. Chipped, pitted, spelled and broken gears or synchronizer teeth can cause noise.
Brinnelled or spelled bearings will generate noise.
Improperly assembled (missing, loose, or improperly installed parts, etc) transaxles are likely to generate abnormal noise.
Squealing noises are commonly caused by defective clutch release bearings and the reverse brake (if equipped). Inspect the bearing cage and reverse cone for signs of heat damage.
Gear rattle, gear clash, hard shifts, and premature clutch disc wear can result from misalignment of the transmission to the engine. Inspect for excessive clutch dust in the clutch housing and oblong (mushroomed) dowel holes.