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Clutch B - Disassembly And Adjustments

WARNING: This page is about a different variant/trim than selected.

CLUTCH B MEASUREMENT: 

NOTE:

When the B-clutch is replaced, the proper selectable shim must be installed to achieve specified clearance.

  1. Place the B-clutch, with the wave plate on top, on a suitable arbor press.
  2. Position tools (special tool #8901A, Pressing Tool) (3) (using just the cross bar) and (special tool #10429, Gauge, Force) (2) on top of the B-clutch wave plate (1) and under the press ram.
    GC0154465Courtesy of CHRYSLER GROUP, LLC
  3. Apply 500 N (112 lbs.) of downward force on the B-clutch to compress the wave plate.
  4. Using a suitable micrometer, measure the thickness of the compressed B-clutch (3). Record the measurement as (A)  to calculate the B-clutch clearance in order to determine the correct selectable shim thickness.
    GC0154375Courtesy of CHRYSLER GROUP, LLC
  5. With a suitable depth micrometer, place it at the mounting surface of the transmission oil pump (2) and measure to the base of the B-clutch retainer on the case (1). This measurement should be 61.05 mm. Record the measurement as (B)  to calculate the B-clutch clearance in order to determine the correct selectable shim thickness.
    GC0154488Courtesy of CHRYSLER GROUP, LLC
  6. Using a suitable depth micrometer, measure the B-clutch piston.
  7. Measure between the fluid pump sealing surface and the bottom of the straight edge. Record the measurement as (C)  to calculate the B-clutch clearance in order to determine the correct selectable shim thickness.

Calculation  - Take the case depth (B) subtract (C) subtract (A) remainder is the clearance of the B-clutch. If the clearance is not within specification a thinner or thicker reaction plate can be installed to achieve proper clearance.

GC0154544Courtesy of CHRYSLER GROUP, LLC

CLUTCH SPECIFICATIONS 

Clutch Condition Minimum Normal Maximum
B NEW 1.52 mm 1.725 mm 1.93 mm
0.060 in 0.068 in 0.076 in
AFTER OPERATION 1.52 mm 1.825 mm 2.13 mm
0.060 in 0.072 in 0.084 in

CLUTCH B SELECTABLE BACKING PLATES 

6.0 mm .236 in.
5.8 mm .228 in.
5.6 mm .220 in.
5.4 mm .212 in.
5.2 mm .204 in.
5.0 mm .196 in.
4.8 mm .188 in.

DISASSEMBLY 

The B-Clutch, dependent on transmission Julian Date, may contain wave springs that sit around each fiber. there will be five fibers (3), five wave springs (4), five steels (5), one cover plate (2), one snap ring (1), and one wave plate (5). 

  1. Backing Plate
  2. Friction Plate
  3. Wave Spring
  4. Steel Plate
  5. Wave Plate
GC0183184Courtesy of CHRYSLER GROUP, LLC
  1. Position the input/output shaft and the P4 annulus drum assembly (1) on (special tool #8925-3, Assembly, Press Fixture) (3) with (special tool #1130, Splitter, Bearing/Gear) (4) and remove the clutch plates (2).
GC0181964Courtesy of CHRYSLER GROUP, LLC

ASSEMBLY 

GC0181964Courtesy of CHRYSLER GROUP, LLC
NOTE:

If clutch discs are being replaced, soak in 8HP transmission fluid before assembly. 

  1. Position the input/output and the P4 annulus drum assembly (1) on (special tool #8925-3, Assembly, Press Fixture) (3) and (special tool #1130, Splitter, Bearing/Gear) (4).
    GC0183184Courtesy of CHRYSLER GROUP, LLC
  2. Install the backing plate (1) first, bevel down.
  3. Install the B-Clutch plates. If equipped with wave springs (3), install the first fiber plate (2) on the backing plate (1), then install a wave spring (3) (it will lay just outside the diameter of the fiber plate), then a steel plate (4), and repeat until all plates are installed.
  4. Install the B-Clutch wave plate (5).
  5. Install the P1 annulus onto the input/output shaft.
  6. Install the correct selectable shim onto the P1 annulus.
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