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SCZA Transmission Info & Specs

SCZA Transmission Info & Specs

 

 

Line Pressure Test

Hydraulic Pressure Shift Position RPM  Fluid Pressure (Standard or New)
Forward Clutch Drive 1700  

1.57 - 1.84 MPa

(16.0 - 18.8 kgf/cm2 , 228-267  PSI)   

Reverse Brake Reverse 1700

1.57 - 1.84 MPa

(16.0 - 18.8 kgf/cm2 , 228-267 PSI)

Drive Pulley Neutral 1700

0.34 - 0.64 MPa

(3.5 - 6.5 kgf/cm2 , 50-92 PSI)

Driven Pulley Neutral 1700

0.64 - 0.93 MPa

(6.5 - 9.5 kgf/cmw , 92 - 140 PSI)

Lubrication Pressure Neutral 3000

0.25 - 0.40 MPa

(2.5 - 4.1 kgf/cm2 , 36-58 PSI)

 

Pressure Control Valve Solenoid Test

Measure the resistance between solenoid harness connector terminals.

Solenoid  Connector Terminals  Resistance 
Start Clutch 4 & 8 3.8 - 6.8
Drive Pulley 3 & 7 3.8 - 6.8
Driven Pulley 2 & 6 3.8 - 6.8
Inhibitor 5 & Body Ground 11.7 - 21.0   

 

Gear Ratio

Primary Reduction   Direct 1:1   
Gear Ratio Low - High   2.367 - 0.407  
Gear Ratio Reverse 4.226 - 3.214
Final Reduction Gear Ratio 4.333

 

Clutch Clearance

Clutch  Clearance 
Forward Clutch

0.5 - 0.7mm

(0.020-0.028 in) 

Start Clutch

0.5 - 0.7mm

(0.020 - 0.028 in)   

Reverse Clutch

0.55 - 0.70mm

(0.022-0.028 in)

 

Shaft Clearance

Shaft    End Play  
Input Shaft    AFT Pump Drive Sprocket Hub 

0.37 - 0.65 mm 

(0.015 - 0.026 in)   

Input Shaft    Planetary Carrier

0.05 - 0.115 mm

(0.002-0.0045 in)

Driven Pulley Shaft     Start Clutch Side

0 - 0.13mm

(0 -0.005 in)

Differential Carrier Carrier to Pinion Shaft

0.026 - 0.062 mm

(0.001 - 0.002 in)

Differential Carrier Carrier to Drive Shaft / Intermediate Shaft

0.045 - 0.086 mm

(0.002 - 0.003 in)

 

Differential Backlash Inspection

  1. Install drive shafts on the differential, then place the axle on V-blocks
  2. Check backlash of the pinion gears with a dial indicator.
  3. If the backlash is out of spec, replace the differential carrier

Backlash Spec = 0.05 - 0.15 mm (0.002 - 0.006 in)

 

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10396 State Route 56 E

Circleville, OH 43113

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