SR–43 STEERING – POWER STEERING GEAR SR4392 SST 6. AIR TIGHTNESS TEST (a) Install SST to the unions of the rack housing. SST 09631–12071 NOTICE: Do not install union seats. (b) Apply 53.3 kPa (400 mmHg, 15.75 in.Hg) of vacuum for about 30 seconds. (c) Check that there is no change in the vacuum. If there is change in the vacuum, check the installation of the oil seals. 7. INSTALL CONTROL VALVE ASSEMBLY (a) Coat the teflon rings, with power steering fluid. (b) Push the valve assembly into the rack housing. 8. INSTALL CONTROL VALVE HOUSING (a) Coat a new O–ring with power steering fluid, and install it to the housing. (b) To prevent oil seal lip damage, wind vinyl tape on the serrated part of the control valve shaft. (c) Using a hexagon wrench (6 mm), torque the 2 bolts. Torque: 18 N·m (185 kgf·cm, 13 ft·lbf) SST R07106 9. INSTALL SPACER, BEARING AND SELFLOCKING NUT Using SST to stop the control valve shaft rotating, torque a new nut. SST 09616–00010 Torque: 39 N·m (400 kgf·cm, 29 ft·lbf) 10. INSTALL RACK HOUSING CAP (a) Apply sealant to 2 or 3 threads of the cap. Sealant: Part No. 08833–00080, THREE BOND 1344, LOCTITE 242 or equivalent (b) Torque the cap. Torque: 69 N·m (700 kgf·cm, 50 ft·lbf) 11. INSTALL RACK GUIDE SEAT, RACK GUIDE, RACK GUIDE SPRING AND RACK GUIDE SPRING CAP (a) Install the seat to the guide. (b) Apply sealant to 2 or 3 threads of the cap. Sealant: Part No. 08833–00080, THREE BOND 1344, LOCTITE 242 or equivalent (c) Temporarily install the cap.