1994 MAZDA MX-5 check oil

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 K On-vehicle Installation 1. Set the valve body assembly in position, and align the manual plate and manual valve. Tightening torque: 10.8-1 4.7 N.m (11 0-150 kgf-m, 95.5--130 ftalbf) 2. Connect the solenoid valve connector. 3. Install the harness. , . 4. Install the oil pan along with a new gasket. MANUAL PLATE Tightening torque: 5.9-7.8 N.m (60-80 kgf-cm, 53-69 in4bf) 45UOKX-371 5. Install the bolts. Tightening torque: 5.9-7.8 Nsm (60--80 kgf-cm, 53--69 inalbf) 6. Apply ATF to a new O-ring and install it onto the vacuum diaphragm. 7. Apply ATF to a new O-ring and install it into the transmis- sion case. 8. Apply ATF to the vacuum diaphragm rod and vacuum di- aphragm, and install them into the transmission case. Tightening torque: 7.9-1 0.7 N-m (80-1 10 kgf-cm, 70-95.4 in-lbf) 9. Connect the vacuum hose. 10. Install the exhaust pipe. (Refer to page K-148.) 11. Add approximately 4.0 L (4.2 US qt, 3.5 Imp qt) ATF, and check the ATF level. (Refer to page K-35.) Gartner Banana

K TRANSMISSION VACUUM DIAPHRAGM Preparation SST Note Excessive shift shock and improper shifting often indicate a vacuum diaphragm malfunction. 49 GO32 355 Adjustment gauge Warning When the transmission and the ATF are hot, they can cause burns to the skin. Allow the trans- mission and the ATF to cool before doing this procedure. For adjustment of vacuum diaphragm rod On-vehicle Removal 1. On level ground, jack up the vehicle and support it evenly on safety stands. 2. Remove the exhaust pipe. (Refer to page K-45.) 3. Loosen the oil pan mounting bolts, and drain approx. 1.0 L (1.1 US qt, 0.9 Imp qt) of ATF. L' 4. Disconnect the vacuum hose. 5. Remove the vacuum diaphragm, O-rings, and vacuum diaphragm rod. Inspection 1. Check that the vacuum diaphragm rod moves when vac- uum is applied to the vacuum diaphragm. 2. If not correct, replace the vacuum diaphragm. Gartner Banana

K TRANSMISSION I BEARING I SENSING ROTOR FOURTH GEAR CASE BEARING 19. Align the marks of the transmission case and fourth gear case. Tap lightly with a plastic hammer to avoid damag- ing the seal rings when installing. 20. Set a new gasket in place. Note The sensing rotor and bearing are part of the oil pump assembly. 21. Check and adjust the fourth gear planetary gear unit to- tal end play. Do not install the direct clutch drum at this .-, time. (1) Position the fourth gear case upright. (2) Install the bearing and race on the fourth gear case. (3) Install the planetary carrier, sun gear, connecting shell, and bearing as unit in the fourth gear case. (4) Install the sensing rotor and bearing on the connect- ing shell. (5) Measure distances E and H with a straightedge and vernier calipers. (6) Calculate the fourth gear train total end play by using the formula below. Formula: T=E-H-O.1 mm (0.0039 in) T Total end play. E: The distance between the oil pump mounting sur- face (including the oil pump gasket) and the sensing rotor bearing surface. H: The distance between the oil pump side sensing ro- tor bearing contact surface and the oil pump gasket contact surface. 0.1 :The compression amount of a new gasket. Total end play: 0.25-0.50mm (0.01 0-0.020 in} Gartner Banana

TRANSMISSION K BEARING RACE 45UOKX-419 ROTOR I GEAR (7) Adjust the total end play by selecting the proper bear- ing race. Bearing race sizes mm linl Note The sensing rotor and bearing are part of the oil pump assembly. Check and adjust the direct clutch end play. Do not install the planetary pinion carrier at this time. (1) Install the bearing race in the fourth gear case. (2) Install the direct clutch, sun gear, connecting shell, and bearings in the fourth gear case. (3) Install the sensing rotor and bearing on the connect- ing shell. (4) Measure distances G and H with a straightedge and vernier calipers. (5) Calculate the direct clutch end play by using the for- mula below. Formula: T=G-H4.l mm (0.0039 in) T: Total end play G: The distance between the oil pump mounting sur- face (including the oil pump gasket) and the sensing rotor bearing surface. H: The distance between the oil pump side sensing ro- tor bearing contact surface and the oil pump gasket contact surface. 0.1 :The compression amount of a new gasket. Total end play: 0.M.8mm (0.020--0.031 in) (6) Adjust the direct clutch end play by selecting the proper bearing race. Bearing race sizes rnm {in} Gartner Banana

TRANSMISSION K 33. Apply ATF to the piston stem. 34. Adjust the 2nd brake band. (1) Loosen the locknut and tighten the piston stem. Tightening torque: 12.3--14.2 N-m (125--145 kgf-cm, lOg--l25 in-lbf) (2) Loosen the stem the number of turns shown below. Stem: 2 112 turns (3) Hold the stem and tighten the locknut. Tightening torque: 15-39 N.m (1.5-4.0 kgf-m, 11-28 ft-lbf) Caution Applying compressed air to the servo piston for longer than 3 seconds at a time will damage the seal. 35. Check the servo piston operation by applying com- pressed air through the oil passages of the 2nd band servo. @: Engage @: Release Air pressure: 392 kPa (4.0 kg/cm2, 57 psi) max. 36. Apply ATF to the piston stem. Adjust the fourth gear brake band. (1) Loosen the locknut and tighten the piston stem. Tightening torque: 12-15 N-m (1.2-1.5 kgf-m, 8.7-11 ft-lbf) 11.8-14.7 N-m (1 20-150 kgf.cm, 105-1 30 in-lbf) (2) Loosen the stem the number of turns shown below. Stem: 2 turns Gartner Banana

K TRANSMISSION 0 (3) Hold the stem and tighten the locknut. Tightening torque: 15--39 N-m (1.5-4.0 kgf-m, 11-28 ftelbf) Caution Applying compressed air to the servo piston for longer than 3 seconds at a time will damage the seal. I 1 37. Check the servo piston operation by applying com- 45UOM431 pressed air through the oil passage of the fourth gear band servo. Air pressure: 392 kPa (4.0 kg/cm2, 57 psi) max. MANUAL PLATE 38. Set a new gasket on the fourth gear band servo. Install the fourth gear band servo cover. Tightening torque: 5.0-6.8 N-m (50-70 kgfscm, 44--60 indbf) 39. Apply ATF to a new O-ring and install it onto the solenoid valve connector. 40. Install the solenoid valve connector in the transmission case. 41. Set the valve body assembly in piston, and align the manual plate and manual valve. 42. Install the bolts. Tightening torque: 10.8-14.7 N.m (110--150 kgf-cm, 95.5--130 in-lbf) Gartner Banana