Vehicles before change point in 1982
REPLACING TORQUE CONVERTER
Check torque converter in car. Engine and transmission
oil must have operating temperature.
Engine must develop full power. Start engine.
Apply parking brake; floor brake pedal.
Move selector lever to R or 1 and depress accelerator
pedal to full throttle.
Read stall speed¹) from tachometer.
Important: Never test stall speed longer than
10 seconds to prevent overheating.


¹) See Specifications

Stall Speed Much Above Specified Value¹):
a) Insufficient oil in converter - correct oil level.
b) Clutches slipping - check clutches.
Stall Speed Much Below Specified Value¹):
a) Engine power output insufficient - check engine.
b) Converter or pump defective - replace converter
or check pump.
Torque converters can´t be cleaned with standard
workshop equipment and consequently must be
replaced, if a transmission had been damaged or
an oil filter screen torn.



¹) See Specifications

Vehicles after change point in 1982
REMOVING AND INSTALLING
TORQUE CONVERTER
Remove and install transmission 24 00 020.
Pull torque converter out of primary pump
carefully with Special Tools 24 2 000.
Important!
Escaping ATF!


24 00 020

Installation:
Check torque converter for leaks with Special
Tools 24 4 041, 24 4 043 and 24 4 062.
Test pressure: 0.5 bar (7 psi).
Important!
Always use Special Tool 24 4 043 to prevent
injury.

Torque converter must be replaced when bearing
surface on converter shaft is damaged.

Torque converter must be replaced when stator
(L) or turbine (T) cannot be turned by hand.

Turn slightly to guide openings on converter
into primary pump carefully, using Special
Tools 24 4 000.
Important!
Be carful not to damage converter bearings
and seal while guiding in.
Converter is in its correct installed position, if
drive dogs are below case edge by distance (A)
of approx. 9 mm (0.354´´).

Checking Installed Torque Converter:
Engine and transmission oil must have operating
temperature.
Engine must produce full rated power.
Start engine.
Pull on parking brake and operate brake pedal
firmly.
Move selector lever to R or 1 and press accelerator
pedal to full throttle.
Read stall speed* from tachometer.


* See Specifications

Important!
Never test stall speed longer than 10 seconds
to prevent damage from excessive heat.
Stall Speed Much Above Specified Value*.
a) Converter oil volume insufficient -
correct oil level.
b) Slip in clutches - check clutches
Stall Speed Much Below Specified Value*.
a) Engine power insufficient - check engine.
b) Converter or pump defective - replace
converter or check pump.
Torque converters cannot be cleaned with
conventional workshop equipment and must
be replaced when a transmission had been
defective or an oil filter screen torn.
Converter identification*.


* See Specifications