Mitsubishi 3000GT 1991, Service Manual

Page: 608 / 1146

27-12
REAR AXLE Troubleshooting
Symptom
Gear oil leakage
Probable cause
Worn or damaged front oil seal, or an improperly
installed oil seal
Damaged gasket
Remedy
Replace
Loose companion flange self-locking nut
Loose filler or drain plug
Retighten or replace
Retighten or apply adhesive
Seizure
Clogged or damaged vent plug
Insufficient final drive gear backlash
Excessive drive pinion preload
Excessive side bearing preload
Clean or replace
Adjust
Insufficient differential gear backlash
Excessive clutch plate preload
NOTE
Inferior gear oil
Insufficient gear oil quantity
Replace
Replenish
In the event of seizure, disassemble and replace the parts involved, and also be sure to check all components for
any irregularities and repair or replace as necessary.
Break down
Incorrect final drive gear backlash
Insufficient drive pinion preload
Insufficient side bearing preload Adjust
Excessive differential gear backlash
NOTE
Loose drive gear clamping bolts Retighten
In addition to disassembling and replacing the failed parts, be sure to check all components for irregularities and
repair or replace as necessary.
The limited slip The limited slip device is damaged Disassemble, check the functioning
differential does not and replace the damaged parts
function (on snow,
mud, ice, etc.)
TSB Revision