A/T - Torque Converter End Play Measurement, New Tool
Number 85-7-21 Date 5/85Subject: NEW TORQUE CONVERTER END PLAY MEASUREMENT TOOL
ALL MODELS ALL YEARS
Figure 1 - J 35138 TORQUE CONVERTER END PLAY MEASUREMENT TOOL:
A new, essential Torque Converter End Play Measurement tool, Kent-Moore number J 35138 (refer to Figure 1), has been developed and will be shipped to GM dealers approximately May, 1985. This new universal tool replaces the previously released End Play Measurement tools, Kent-Moore numbers J 28538, J 25020-02, J 29060, J 21371 and J 29830.
Using J 35138, end play measurement on all torque converters is performed as follows:
1. Screw upper and lower knurled knobs together.. Be sure collet end is not expanded (refer to Figure 1).
Figure 2 - INSTALLING J 35138 INTO CONVERTER:
2. Insert J 35138 into the torque converter hub (refer to Figure 2).
3. Slide tapered plug into torque converter hub. Plug is for alignment of tool.
4. Hold upper knurled knob and turn wing nut clockwise until hand tight to expand collet into converter turbine hub. Then loosen wing nut (counter clockwise) 2 1/2 turns, or until tool is loose (will move up and down) while not removable from converter.
5. Hold upper knurled knob and turn lower knurled knob clockwise until hand tight to clamp tool in the converter turbine hub.
Figure 3 - CHECKING END PLAY MEASUREMENT:
6. Attach magnetic base (J 26900-13) to torque converter and set up dial indicator (J 8001) so that indicator tip is in center of tool wing nut (refer to Figure 3).
7. To make end play check, push upper knurled knob down, zero out dial indicator and pull lower knurled knob up. Be sure tapered plug stays seated in converter hub. End play is the difference between up and down positions. DO NOT ALLOW WING NUT TO TURN WHEN MEASURING.
8. Remove tool by holding upper knurled knob and turning wing nut counter clockwise.
Refer to the following chart for torque converter end play
specifications. Torque converters that exceed the maximum end play specifications should be replaced.
SIZE
(APPROXIMATE END PLAY
STYLE OUTSIDE DIAMETER) SPECIFICATIONS
Torque Converter 245 mm 0 - 0.50 mm
Clutch (T.C.C.) (10 inches) (0 - 0.019")
298 mm 0 - 0.60 mm
(12 inches) (0 - 0.023")
Open Converter All Sizes 0 - 1.30 mm
(Non - T.C.C.) (0 - 0.050")