Torque Converter Housing/Valve Body
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Part 2 Of 2:
Torque Converter Housing / Valve Body
Removal
1. Remove the ATF feed pipes from the main valve body, regulator valve body, and servo body.
2. Remove the servo detent base (two bolts).
3. Remove the ATF strainer (one bolt).
4. Remove the accumulator cover (two bolts).
NOTE: The accumulator cover is spring loaded. To prevent stripping the threads in the servo body, press down on the accumulator cover while unscrewing the bolts in a crisscross pattern.
5. Remove the bolts securing the servo body (nine bolts), then remove the servo body, valve cap clip cover ('97 model), and servo separator plate.
6. Remove the accumulator body (six bolts).
7. Remove the regulator valve body (eight bolts).
8. Remove the stator shaft and stator shaft stop.
9. Unhook the detent spring from the detent arm, then remove the detent arm shaft, detent arm, and control shaft.
10. Remove the cooler check valve spring and cooler check valve (steel ball).
11. Remove the main valve body (four bolts).
12. Remove the torque converter check valve and spring.
13. Remove the ATF pump driven gear shaft, then remove the ATF pump gears.
14. Remove the main separator plate and dowel pins (three).
15. Clean the inlet opening of the ATF strainer thoroughly with compressed air, then check that it is in good condition, and the inlet opening is not clogged or damaged.
16. Test the ATF strainer by pouring clean ATF through the inlet opening. Replace the strainer if it is clogged or damaged.
VALVE CAPS
Description
- Caps with one projected tip and one flat end are installed with the flat end toward the inside of the valve body.
- Caps with a projected tip on each end are installed with the smaller tip toward the inside of the valve body. The small tip is a spring guide.
- Caps with one projected tip and a hollow end are installed with the tip toward the inside of the valve body. The tip is a spring guide.
- Caps with one projected tip and flat end are installed with the tip toward the inside of the valve body. The tip is a spring guide. The groove is a valve cap clip guide.
- Caps with hollow ends are installed with the hollow end away from the inside of the valve body.
- Caps with notched ends are installed with the notch toward the inside of the valve body.
- Caps with flat ends and a hole through the center are installed with the smaller hole toward the inside of the valve body.
- Caps with flat ends and a groove around the cap are installed with the grooved side toward the outside of the valve body.
VALVE BODY
Repair
NOTE: This repair is only necessary if one or more of the valves in a valve body do not slide smoothly in their bores. Use this procedure to free the valves.
1. Soak a sheet of #600 abrasive paper in ATF for about 30 minutes.
2. Carefully tap the valve body so the sticking valve drops out of its bore.
CAUTION: It may be necessary to use a small screwdriver to pry the valve free. Be careful not to scratch the bore with the screwdriver.
3. Inspect the valve for any scuff marks. Use the ATF soaked #600 paper to polish off any burrs that are on the valve, then wash the valve in solvent and dry it with compressed air.
4. Roll up half a sheet of ATF-soaked #600 paper and insert it in the valve bore of the sticking valve.
Twist the paper slightly, so that it unrolls and fits the bore tightly, then polish the bore by twisting the paper as you push it in and out.
5. Remove the #600 paper. Thoroughly wash the entire valve body in solvent, then dry with compressed air.
6. Coat the valve with ATF, then drop it into its bore. It should drop to the bottom of the bore under its own weight. If not, repeat step 4, then retest. If the valve still sticks, replace the valve body.
7. Remove the valve, and thoroughly clean it and the valve body with solvent. Dry all parts with compressed air, then reassemble using ATF as a lubricant.
VALVE
Assembly
NOTE: Coat all parts with ATF before assembly.
Install the valve, valve spring, and valve cap in the valve body, then secure them with the valve cap clip.
Set the spring in the valve, then install it in the valve body. Push the spring in with a screwdriver, then install the spring seat.
ATF PUMP
Inspection
1. Install the ATF pump gears and ATF pump driven gear shaft in the main valve body.
NOTE:
- Lubricate all parts with ATF during inspection.
- Install the ATF pump driven gear with its grooved and chamfered side facing up as shown.
2. Measure the side clearance of the ATF pump drive and driven gears.
3. Remove the ATF pump driven gear shaft. Measure the thrust clearance of the ATF pump driven gear-to-valve body, with a straight edge and a feeler gauge.
MAIN VALVE BODY
Disassembly / Inspection / Reassembly
REGULATOR VALVE BODY
Disassembly / Inspection / Reassembly
NOTE:
- Clean all parts thoroughly in solvent or carburetor cleaner, and dry with compressed air. Blow out all passages.
- Check all valves for free movement. If any fail to slide freely, see Valve Body Repair.
- Replace the valve body as an assembly if any parts are worn or damaged.
1. Hold the regulator spring cap in place while removing the stop bolt. The regulator spring cap is spring loaded. Once the stop bolt is removed, release the spring cap slowly so it does not pop out.
2. Reassembly is the reverse of the disassembly procedure. Install the filter in the direction shown.