Cause of malfunction |
Remedy |
Noise in gearbox |
|
Gear tooth wear |
Replace worn parts |
Bearing wear |
Replace worn bearings |
Insufficient oil level |
Add oil. Replace damaged or worn oil seals if necessary |
Difficulty shifting gears |
|
Incomplete clutch disengagement |
See subsection «clutch» |
Deformation of the drive rod of the gearshift control mechanism or jet thrust |
Correct the rods or replace |
Loose screws securing the hinge or gear selector lever |
Tighten the screws (see «Transmission») |
Incorrect adjustment of the gear shift actuator |
Adjust the shift drive |
Worn or broken plastic parts in the gearshift drive |
Replace damaged part |
Spontaneous disengagement of gears |
|
Damage or wear to the ends of the synchronizer teeth on the gear and clutch |
Replace worn and damaged parts |
Increased oscillations of the power unit on the supports due to cracks or delamination of rubber on the rear supports |
Replace damaged parts |
Shifting gears due to improper adjustment of the shift actuator or incorrect installation (stretching) protective cover traction |
Adjust drive (see «Adjustment of a drive of a gear change») or fix the thrust cover |
Noise («crackling») at the moment of switching gears |
|
Incomplete clutch disengagement |
See subsection «Clutch» |
Deterioration of the blocking ring of the synchronizer of the switched gear |
Replace blocking ring |
Oil leak |
Wear on input shaft seals, constant velocity joint housings, gear selector rod or speedometer drive shaft seal |
Replace seals, seal |
The crankcase or box cover is loose or the sealant under the box cover or between the box case and the clutch housing is damaged, the drain plug is loose |
Replace sealant, tighten bolts and nuts, tighten drain plug |