Upper Control Valve Body
UPPER CONTROL VALVE BODYDisassembly/Inspection/Assembly
CAUTION: Denting or scratching these precisely machined components will reduce the ability of the transaxle to shift properly. When handling these components or the valve body that contains them, be careful not to drop or hit them.
NOTE: If a valve does not slide out under its own weight, place the valve body open-side down and tap on the valve body lightly with a plastic hammer.
1. Disassemble in the order shown in the figure, noting the proper reassembly direction of the valves and internal parts.
WARNING: Using compressed air can cause dirt and other particles to fly out, causing injury to the eyes. Wear protective eye wear whenever using compressed air.
2. Clean all parts and bores with compressed air and apply ATF to them immediately before assembly.
3. Assemble in the reverse order of disassembly, referring to Assembly Procedure.
Inspection
Spring
1. Measure the spring free length.
2. If not within the specifications, replace the spring.
Assembly Procedure
1. Install the pilot valve, pilot valve spring and stop pin.
2. Install the 1-2 accumulator valve, stop plug and stop pin.
3. Install the torque converter relief valve, torque converter relief valve spring and stop pin.
4. Install the accumulator control valve, stop plug and stop pin.
5. Install the 1st reducing valve, 1st reducing valve spring and stop pin.
6. Install the overrunning clutch control valve, overrunning clutch control valve spring, stop plug and stop pin.
7. Install the pressure modifier valve, pressure modifier valve spring, stop plug and stop pin.
8. Install the retainer, 1-2 accumulator spring, 1-2 accumulator, stop plug and stop pin.