Control Valve Body

The control valve is composed, of parts which are accurately machined to a high degree and should be handled carefully during disassembly and assembly. As these parts are similar in shape, they should be arranged in neat order (in a table after disassembly so that they can be easily installed to their original positions. Spring loaded parts should be also handled carefully, as springs may jump out of place when the parts are disassembled or removed. Extreme care should be taken so as not to drop valves on the floor. Before assembling, the parts and valves should be dipped in a container filled with the Automatic Transmission Fluid(ATF). Make sure that the valves are clean and free from any foreign material before assembly. Torque specifications should also be observed.

A: DISASSEMBLY





1. Remove the following parts from the upper valve body.
1. Solenoid assembly (shift l-2-3)
2. Duty solenoid A (line pressure)





2. Remove the following parts from the lower valve body.
1. Duty solenoid B (lock-up)
2. ATF temperature sensor
3. Bracket
3. Separate the upper valve body and lower valve body.





CAUTION:
- Do not lose the nine (9) steel balls contained in the upper valve body.
- Do not lose an orifice and a strainer contained in the lower valve body.

NOTE:
Remove the upper-lower valve body tightening bolts. Then remove two locating bolts.
During ordinary servicing, clean the control valve bodies in this condition, without further disassembly.
In the event of a seized clutch or other problem, disassemble the control valve bodies further, and clean the component parts.

B: INSPECTION
Make sure that each component is free of harmful gouges, cuts, or dust.

C: ASSEMBLY





1. Install the nine steel balls to the upper valve body.





2. From under upper valve body, install two bolts using washers and position upper separator gasket.





3. Install the orifice check valve, orifice check spring and filter to the lower valve body.





4. Install lower separate gasket and separate plate on lower body in that order, then temporarily tighten three support plates and two brackets.





5. Temporarily assemble lower valve body to upper valve body.

CAUTION:
Be careful not to drop the upper body interior steel ball, or the lower body interior filter, orifice check spring, or orifice check valve.








6. Install the duty solenoid B, ATF temperature sensor and four bracket.
7. Tighten twenty seven bolts & washers and two reamer bolts.

Tightening torque:
T1: 8 ± 1 Nm (0.8 ± 0.1 kg-m, 5.8 ± 0.7 ft. lbs.)
T2: 11.3 ± 1.5 Nm (1.15 ± 0.15 kg-m, 8.3 ± 1.1 ft. lbs.)





8. Install the shift solenoid and duty solenoid A.

a length : 16 mm (0.63 inch)
b length : 27 mm (1.06 inch)

Tightening torque:
8 ± 1 Nm (0.8 ± 0.1 kg-m, 5.8 ± 0.7 ft. lbs.)