HYDRAULIC TORQUE CONVERTER SECTION 7B
Page 5
DRESSTA TD-25M EXTRA
GENERAL
3. SPECIFICATIONS
Torque converter weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 [kG]
Torque converter admissible leakage rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 7 [lpm]
Torque converter stall speed:
Converter only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1680 – 1820 [RPM]
Converter and hydraulic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1520 – 1680 [RPM]
Special Bolt Torque Data
NOTE: Torques given are for bolts and nuts lubricated with SAE-30 engine oil.
Impeller to drive gear mounting bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 - 58 [Nm]
Impeller to drive housing mounting bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 - 51 [Nm]
Housing cover to drive housing mounting bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 - 58 [Nm]
Rear cover and ground sleeve hub to housing mounting bolts . . . . . . . . . . . . . . . . . . . 72 - 88 [Nm]
Output flange thrust washer mounting bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 - 101 [Nm]
Bearing thrust washer mounting bolt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 - 101 [Nm]
Gear ring to flywheel mounting bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 - 101 [Nm]
Universal joint mounting bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 [Nm]
Torque converter mounting bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 [Nm]
4. SERVICE DIAGNOSIS
COMPLAINT
PROBABLE CAUSE REMEDY
Loss of Oil from Torque Converter
Leaking connections Operate the engine at part throttle and inspect
all lines and connections for leaks. Tighten or
replace parts as necessary.
Leaking converter
a). Converter rear
b). Converter front or through cranking motor
Check all the bolts and nuts and gasket joints
while the system is under pressure. Replace
parts if necessary.
Replace leaking broken seal rings: at rear cover
or O-ring at output flange.
Replace O-ring at housing or cranking motor.
Grinding or Scraping Noise Inside Converter Housing
Bearing failure allowing the turbine or
impeller blades to strike the fixed stator
Replace bearings, turbine, impeller and stator as
necessary.
High Torque Converter Oil Temperature (Gauge on Instrument Panel)
See SERVICE DIAGNOSIS in SECTION 7
Loss of Power
See SERVICE DIAGNOSIS in SECTION 7
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