Limited Slip Differential Check
Limited Slip Differential CheckOperational Check
NOTE: The helical type Limited Slip Differential (LSD) distributes optimum power between the two driving axles according to the difference in torque as demanded by the driving wheels. Under no circumstances should the engine be started with either wheel raised off the ground, such as when adjusting wheel balance or when transporting the vehicle in the event of an accident.
1. Set the parking brake, and block the rear wheels.
2. Raise the front of the vehicle, and support it with safety stands in the proper locations.
3. With the ignition switch turned OFF, shift the transmission into 1st gear.
4. Rotate either front wheel by hand, and check that the other wheel rotates in the opposite direction.
5. If the opposite front wheel does not rotate, or if you cannot spin the front wheels at all, the limited slip differential is faulty and should be replaced.
Rotating Torque Check
1. Set parking brake, and block the rear wheels.
2. Raise the front of the vehicle, and support it with safety stands in the proper locations.
3. With the ignition switch turned OFF, shift the transmission into Neutral.
4. Measure the rotating torque with a beam-type torque wrench in the direction shown. Rotate the torque wrench more than two complete turns, and take the maximum reading.
5. Shift the transmission into 1st gear, and measure the rotating torque again.
Service Limit
Measurement from step 5/Measurement from step 4 >/= 2.5
For example:
7.8 Nm (0.8 kgf-cm)/2.9 Nm (0.3 kgf-cm) = 2.67 > 2.5
6. Calculate the rotating torque.
7. Repeat steps 3 through 6 for the other wheel.
8. Replace the limited slip differential assembly if the rotating torque is lower than the service limit.