GMC T Series 1994 Repair Manual page 743

Figure 82 Speed Sensor Assembly
TORQUE CONVERTER ASSEMBLY
Figure 83
Tools Required:
J 39195 Torque Converter End Play
Checking Tool
J 26900-13 Magnetic Base
J 8001 Dial Indicator Set
J 21369-E Converter Leak Test 1.625 Inch
Plug
J 21366 Converter Holding Strap
The torque converter assembly (1) must be
replaced for any of the following conditions:
[ y | Inspect
1. Evidence of damage to the pump assembly.
2. Metal particles are found after flushing the cooler
and cooler lines.
3. External leaks in hub weld area.
4. Converter pilot is broken, damaged or poor fit
into crankshaft.
5. Converter hub is scored or damaged.
6. Internal failure to stator.
7. Contamination from engine coolant.
8. Excess end play.
| ^ | Measure
Figure 83
1. Remove the T-handle forcing screw from the
base.
2. Place J 39195 base into the torque converter. J 39195
will bottom itself on the face of the stator.
3. Insert the T-handle forcing screw and hand
tighten.
NOTE:
This will allow the spline of J 39195 to
grip the spline of the stator for proper measurement.
4. Position J 8001 Dial Indicator as shown.
check end play, push down on J 39195 handles
to bottom stator. Now pull up on handles and
check reading. Repeat this procedure a few times
to get an accurate reading. Specs should be .0 to
.024 (.0 to .6mm).
The Torque Converter Should Not Be Replaced if:
1. The fluid has an odor, discolored or no evidence
of metal or clutch plate material.
A. Drain out as much fluid as possible
B. Replace the oil filter and pan gasket
C. Fill to proper level (Refer to Section 7A)
2. The converter bolt hole threads are damaged.
• Correct with thread insert
Flushing the torque converter is not recommended.
To