clutch CHEVROLET DYNASTY 1993 Service Manual

Fig. 76 Guide Bracket Assembled
Fig. 77 Guide Bracket Disassembled
Fig. 78 Low/Reverse Clutch Piston
Fig. 79 Piston Retainer Attaching Screws
Fig. 80 Piston Retainer
Fig. 81 Piston Retainer Gasket
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CAUTION: Drift bearing cup all the way around. To assemble, reverse the above procedure. Be sure
to check both grounded clutch clearances. Before in- stalling the input clutches retainer, follow the instruc-
tions in Determining No. 4 Thrust Plate Thick-
ness .
Fig. 82 Remove Output Bearing Inner Cup
Fig. 83 Remove Output Bearing Outer Cup
Fig. 84 Install Both Output Bearing Cups
Fig. 85 Checking Output Gear Bearings End Play
Fig. 86 Checking Output Gear Bearings Turning
Torque
Fig. 87 Check Low/Reverse Clutch Clearance
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Press down clutch pack with finger and zero dial
indicator. Low/Reverse clutch pack clearance is
1.04 to 1.65mm (.042 to .065 inch). Select the proper low/reverse reaction plate to
achieve specifications:
Press down clutch pack with finger and zero dial
indicator. The 2/4 clutch pack clearance is 0.76 to
2.64mm (.030 to .104 inch). If not within specifica-
tions, the clutch is not assembled properly. There is
no adjustment for the 2/4 clutch clearance.
DETERMINING NO. 4 THRUST PLATE THICKNESSÐINPUT SHAFT END PLAY
To determine the proper thickness of the No. 4 thrust
plate, select the thinnest No. 4 thrust plate. Using
petrolatum (Fig. 87) to hold thrust plate in position,
install input clutches assembly. Be sure the input
clutches assembly is completely seated (Fig. 88).
CAUTION: If view through input speed sensor hole is
not as shown above, the input clutches assembly is
not seated properly.
By removing the oil pump O-ring, you will be able to
install and remove the oil pump and gasket very easily
to select the proper No. 4 thrust plate. CAUTION: Be sure to reinstall O-ring on oil pump
after selecting the proper No. 4 thrust plate.
Input shaft end play must be .005 to .025 inch.
LOW/REVERSE REACTION PLATE CHART
Fig. 88 Check 2/4 Clutch Clearance
Fig. 89 Select Thinnest No. 4 Thrust Plate
Fig. 90 View Through Input Speed Sensor Hole
Fig. 91 Remove Oil Pump O-Ring
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For example, if end play reading is .055 inch, select
No. 4 Thrust Plate which is .071 to .074 thick. This
should provide an input shaft end play reading of
.020 inch which is within specifications. See chart below to select the proper No. 4 thrust
plate.
INPUT CLUTCHES-RECONDITION
DISASSEMBLY
Fig. 92 Measure Input Shaft End Play
NO. 4 THRUST PLATE CHART
Fig. 1 Tapping Reaction Plate
Fig. 2 Reverse Clutch Snap Ring
Fig. 3 Pry Reverse Clutch Reaction Plate
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Tag reverse clutch pack for reassembly identi-
fication.
Fig. 7 OD/Reverse Pressure Plate
Fig. 8 Waved Snap Ring
Fig. 9 Remove OD Clutch Pack
Fig. 4 Reverse Clutch Reaction Plate
Fig. 5 Reverse Clutch Pack
Fig. 6 OD/Reverse Pressure Plate Snap Ring
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Tag overdrive clutch pack for reassembly iden-
tification.
Fig. 13 No. 2 Needle Bearing
Fig. 14 OD/UD Reaction Plate Tapered Snap Ring
Fig. 15 OD/UD Reaction Plate
Fig. 10 Overdrive Clutch Pack
Fig. 11 Overdrive Shaft Assembly
Fig. 12 Underdrive Shaft Assembly
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Tag underdrive clutch pack for reassembly
identification. CAUTION: Compress return spring just enough to
remove or install snap ring.
Fig. 19 UD Spring Retainer Snap Ring
Fig. 20 UD Return Spring and Retainer
Fig. 21 Underdrive Clutch Piston
Fig. 16 Remove One UD Clutch Disc
Fig. 17 UD Clutch Flat Snap Ring
Fig. 18 Underdrive Clutch Pack
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Fig. 5 Install OD/Reverse Piston
Fig. 6 Install Input Shaft Hub Assembly
Fig. 7 Input Hub Tapered Snap Ring
Fig. 8 Underdrive Clutch Piston
Fig. 9 Seal Compressor Special Tool 5067
Fig. 10 UD Return Spring and Retainer
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CAUTION: Compress return spring just enough to
remove or install snap ring.
Fig. 11 Install UD Spring Retainer and Snap Ring
Fig. 12 Underdrive Clutch Pack
Fig. 13 UD Clutch Flat Snap Ring
Fig. 14 Install Last UD Clutch Disc
Fig. 15 OD/UD Reaction Plate
Fig. 16 Tapered Snap Ring
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Snap ring ends must be located within one
finger of the input clutch hub. Be sure that snap
ring is fully seated, by pushing with screwdriver,
into snap ring groove all the way around. Underdrive clutch pack clearance must be 0.91
to 1.47 mm (.036 to .058 inch). Select the proper
reaction plate to achieve specifications:
Fig. 17 Seating Tapered Snap Ring
Fig. 18 Set Up Dial Indicator for Clutch Clearance
Fig. 19 Use Hook Tool to Raise One Clutch Disc
UNDERDRIVE REACTION PLATE CHART
Fig. 20 Install OD Clutch Pack
Fig. 21 Install Waved Snap Ring
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