Disassembly/Assembly of Limited Slip Differential (40%)
Disassembly/AssemblyLimited Slip Differential (locking value 40%):
Legend 1:
Legend 2:
- Refer to images for instructions and legends.
Disassembly
- Remove pan head screws (legend 1 no. 8) from case cover, remove cover and take out all internal components.
- Mark all thrust rings and differential shafts for reassembly.
assembly
- Oil all sliding surfaces of the discs, thrust rings and differential shafts with transmission oil.
1 - Cup spring
2 - Outer disc
3 - Inner disc
4 - Thrust washer
- Install cup washers in such a way that the domed surface points towards the inside (towards the disc package).
- Determine thickness of disc package "d" (only required if components are to be replaced).
- Determine case depth, dimension "a".
^ Example: a = 95.50
- Determine dimension "b" of cover.
^ Example: b = 13.8 mm
- Calculate clearance "c" inside casing.
^ c = a - b
Example
a = 96.5 mm
b = 13.8 mm
__________
c = 81.7 mm
A = Plate of Special Tool 9508/1
- Determine dimension "d" (disc package with 2.0 mm outer discs and inner discs, but without cup springs).
^ Example: d = 76.50 mm
e/2 + e/2 = e = 5.2 mm
- Determine dimension "e" (must be 5.20 mm).
^ e = c - d
Example
c = 81.70 mm
d = 76.50 mm
___________
e = 5.20 mm
NOTE: If dimension "e" is exceeded or if the dimension remains below this value, fit thicker or thinner outer discs.
"e" below 5.20 mm - install thinner discs.
"e" above 5.20 mm - install thicker discs.
- Outer discs are available in a thickness of 1.9 mm, 2.0 mm and 2.1 mm.
- Following assembly, measure spinning torque with one fixed shaft bevel gear and one driven shaft bevel gear. For this purpose, fit one flange with two bolts in a vise and position differential. Insert other flange with shop-made connecting piece and rotate differential with a torque wrench. A torque of 10-35 Nm (7.5-26 ft lb) must be attained.
NOTE: If the prescribed torque is not attained when the thickest outer discs are fitted, all discs are worn and must be replaced.