1994 MAZDA MX-5 oil

TRANSMISSION K EXTENSION HOUSING AND PARKING MECHANISM Disassembly 1 Inspection 1 Assembly u Note The oil seal does not have to be removed unless it is being replaced. 1. Disassemble in the order shown in the figure, referring to Disassembly Note. 2. Inspect all parts, and repair or replace if necessary. 3. Assemble in the reverse order of disassembly, referring to Assembly procedure. . - Extension housing 15. Manual shaft 1 2. Dowel spacer 3. Return spring 4. Parking pawl 5. Pawl shaft 6. Retainer plate 7. Actuator support 8. Steel ball 9. Retainer 10. Spring Inspection .................. page K-108 11. Spring pin 12. Retaining ring 13. Manual plate 14. Parking rod 16. O-ring 17. O-ring 18. Oil distributor Inspection ................ page K-108 19. Seal rings 20. Transmission case 21. Output shaft 22. Snap ring 23. Speedometer drive gear 24. Key 25. Snap ring 26. Oil seal Disassembly note ........... page K-108 Gartner Banana

K TRANSMISSION t- FREE LENGTH 1 WIRE DIAMETER n CLEARANCE -a Disassembly note Oil seal Remove the oil seal with a screwdriver. Inspection Spring 1. Measure the spring specifications. Specifications . I Outer dia. 2. If not within specification, replace the spring. Oil distributor 1. Measure the clearance between the seal rings and the grooves. - -. - . - - mm {in) 7.2 (0.283) Clearance Standard: 0.04--0.16mm (0.0024.006 in) Maximum: 0.40mm (0.016 in} No. of coils 14.0 Free length mm {in} 32.0 {I .260} 2. If not within specification, replace the oil distributor. Wire dia. mm 0.7 I0.028) Assembly procedure 1. Apply ATF to a new oil seal, and install it into the exten- sion housing. 2. Apply ATF to the springs and retainer and install them into the extension housing. 3. Apply ATF to the steel balls and actuator support and install them into the extension housing. 4. Apply ATF to the retainer plate, and install it into the ex- tension housing. Tightening torque: 7.9--10.7 Nmm (80-11 Okgfmcm, 70-95.4 in-lbf) 5. Apply ATF to the pawl shaft, and install it into the exten- sion housing. 6. Apply ATF to the parking pawl and return spring, and install it into the extension housing. 7. Apply ATF to the dowel spacer, and install it into the ex- tension housing. Gartner Banana

TRANSMISSION K 8. Apply ATF to the new O-rings, and install them onto the manual shaft. 9. Apply ATF to the manual shaft, and install it into the transmission case. 10. Install the parking rod and retaining ring. 11. Apply ATF to the manual plate, and install it onto the manual shaft. 12. Drive the spring pin. 13. Check the parking mechanism operation. 14. Apply ATF to the new seal rings, and install them onto the oil distributor. 15. Install the snap ring, key, and speedometer drive gear onto the output shaft. 16. Secure the speedometer drive gear with the snap ring. Gartner Banana

TRANSMISSION K Inspection Check for damage, wear, or oil leaking from the oil seal. Replace if necessary. OIL SEAL Preparation SST On-vehicle Replacement 1. Remove the exhaust pipe. (Refer to page K-46.) 2. Remove the propeller shaft. (Refer to section L.) 3. Remove the oil seal from the extension housing. 4. Apply ATF to outer periphery and lip surface. 5. Install the new oil seal by using the SST. 6. lnstall the propeller shaft. (Refer to section L.) 7. Install the exhaust pipe. (Refer to page K-148.) w 49 GO30 795 For installation of oil Installer, oil seal 49 GO30 797 Handle (Part of 49 GO30 795) For installation of oil seal Gartner Banana

TRANSMISSION 1. Manual valve 12. Separator plate 2. Oil strainer 13. Orifice check valve 3. 3-2 control solenoid valve 14. Orifice check spring ................ ................ i/ Inspection page K- 42 Inspection page K-115 4. Oil strainer 15. Throttle relief ball 5. 1-2 shift solenoid valve 16. Throttle relief spring Inspection ................ page K- 42 Inspection ................ page K-115 6. Oil strainer 17. Valve body cover 7. 2-3 shift solenoid valve 18. Inner strainer Inspection ................ page K- 42 19. Separator plate 8. Oil strainer 20. Orifice check valve 9. 3-4 shift solenoid valve 21. Orifice shock spring ................ Inspection ................ page K- 42 Inspection page K-115 10. Oil strainer 22. Lower valve body 11. Upper valve body Disassembly / Inspection / ................ Disassembly / Inspection / Assembly page K-120 Assembly ............... page K-116 Disassembly procedure 1. Remove the 3-2 control solenoid valve. 2. Remove the oil strainer and O-ring. 3. Remove the 1-2 shift solenoid valve. 4. Remove the oil strainer and O-ring. I I 45UOKX425 5. Remove the 2-3 shift solenoid valve. 6. Remove the oil strainer and O-ring. i/ Gartner Banana

K TRANSMISSION 7. Remove the 34 shift solenoid valve. 8. Remove the oil strainer and O-ring. 9. Remove the bolts and nuts shown in the figure. 10. Hold the lower valve body and separator plate together with a large clip. 11. Remove the upper valve body. 12. Remove the clip. 13. Gently remove the separator plate. Note Tag the orifice check valves for proper reassembly. 14. Remove the orifice check valves, throttle relief ball, and springs. Gartner Banana

TRANSMISSION K r FREE LENGTH 1 -/i- WIRE DIAMETER 15. Gently remove the separator plate. Note Tag the orifice check valves for proper reassembly, 16. Remove the orifice check valves and springs. Inspection 1. Measure the spring specifications. 2. If not within specification, replace the spring(s). item Outer dia. Spring mm {in} Free length mm {in) 15.5 (0.61 0) 26.8 (1.055) Orifice check Throttle relief 5.0 (0.1 97) 6.5 I0.256) No. of coils 12.0 14.0 Wire dla. mm {in) 0.23 (0.009) 0.9 {0.035) Gartner Banana

TRANSMISSION 1. Bolts 16. 2-3 shift valve 2. Side plate 17. 2-3 shift spring 3. N-R reducing spring Inspection ................ page K-117 ................ w Inspection page K-117 18. Bolts 4. N-R reducing valve 19. Side plate 5. Pressure regulator sleeve 20. Vacuum throttle valve 6. Pressure regulator plug 21. 3-4 shift sleeve 7. Spring seat 22. 3-4 shift valve 8. Pressure regulator spring 23. 3-4 shift spring Inspection ................ page K-117 Inspection ................ page K-117 9. Pressure regulator valve 24. Backup control valve 10. Bolts 25. Backup control spring 11. Side plate Inspection ................ page K-117 12. Pressure modifier valve 26. Throttle backup spring ................ 13. Pressure modifier spring Inspection page K-117 Inspection ................ page K-117 27. Throttle backup valve 14. 1-2 shift valve 28. Manual valve 15. 1-2 shift spring 29. Upper valve body Inspection ................ page K-117 I t- FREE LENGTH 7 WIRE DIAMETER lnspection 1. Measure the spring specifications. 2. If not within specification, replace the spring(s). item Outer dia. mm (in) Pressure regulator 1-2 shift Free iength mm (in} 2-3 shift 3-4 shift 11.7 (0.461) 7.4 (0.291) Pressure modifier Throttle backup No. of coils 10.0 (0.394) 7.5 (0.295) I I I I Wire dia. mm (in} 43.0 (1.693) 26.4 (1.039) 9.2 (0.362) 9.0 (0.354) N-R reducing Backup control 50.0 (1 .969) 40.2 (1 583) 13.0 9.6 19.8 {0.780} 17.5 {0.689) 8.5 (0.335) 1.2 (0.047) 0.7 (0.028) 13.7 15.0 0.6 (0.024) 7.4 (0.291) 1 .O (0.039) 0.8 (0.031) 5.3 5.2 21.3 (0.639) 0.7 (0.028) 0.9 (0.035) 14.5 (0.571) 5.0 7.3 0.9 (0.035) Gartner Banana