1994 MAZDA MX-5 brake

TRANSMISSION K Assembly procedure 1. Apply ATF to a new O-ring and install it onto the piston. 2. Apply ATF to a new seal ring and install it onto the piston. 3. Apply even pressure to the perimeter of the low and re- verse brake piston, and install it into the transmission case. 4. Verify that the piston can be turned by hand. If it cannot, then remove it and check for damage to the seal ring and O-ring. 5. Apply ATF to the one-way clutch inner race, thrust wash- er, and return spring. 6. Assemble the one-way clutch inner race, thrust washer, and return spring, and install them in the transmission case. 7. Verify that the return spring, thrust washer, and rings are properly positioned before securing the bolts. RETURN SPVING THRUSTWASHER 45UOKX-291 8. Tighten the allen head bolts by using the SST. Tightening torque: 12.8-1 7.6 N-m (1 30-180 kgfacm, 11 3-156 in-lbf) 9. Soak new drive plates in ATF for at least two hours. 10. Apply ATF to the driven plates immediately before as- sembly. 11. Install the drive and driven plates into the transmission case in the following order: Driven-Drive-Driven-Drive-Driven-Drive-Driven- Drive Gartner Banana

K TRANSMISSION SNAP RING RETAINER PLATE 12. lnstall the retaining plate . 13. Install the snap ring with a screwdriver. 14. Measure the clearance between the snap ring and the retaining plate with a feeler gauge. If not within specifica- tion, adjust the clearance by installing the proper retain- ing plate. Clearance: 0.8-1.05mm (0.032-4.041 in) d Retaining plate size rnrn {in) Caution Applying compressed air to the assembled clutch pack for longer than 3 seconds at a time will dam- age the seal. 15. Check operation of the piston by applying compressed air through the oil passage of the low and reverse brake. _i Air pressure: 392 kPa (4.0 kglcm*, 57 psi) max. Gartner Banana

K TRANSMISSION TRANSMISSION UNIT (ASSEMBLY) Preparation SST 49 01 07 680A Engine stand 49 H075 4958 Body (Part of U019 OAOA) 49 GO32 355 Adjustment gauge For assembly of transmission For assembly of transmission For adjustment of vacuum diaphragm rod 49 UOI 9 OAOA Transmission hanger 49 U019 003 Holder (Part of U019 OAOA) For assembly of transmission For assembly of transmission Precaution 1. If the drive plates or brake bands are replaced with new ones, soak the new ones in ATF for at least two hours before installation. 2. Before assembly, apply ATF to all seal rings, rotating parts, O-rings, and sliding parts. 3. All O-rings, seals, and gaskets must be replaced with the new ones included in the overhaul kit. u 4. Use petroleum jelly, not grease, during reassembly. 5. When it is necessary to replace a bushing, replace the subassembly that includes that bushing. 6. Assemble the housing within 10 minutes after applying sealant, and allow it to cure at least 30 minutes after assembly before filing the transmission with ATF. Gartner Banana

K TRANSMISSION Assembly Procedure 1. Assemble the SST as shown. 2. Mount the transmission case onto the SST. 3. Apply petroleum jelly to the bearing, and install it into the rear of the transmission case with the black surface fat- ing outward. Bearing outer diameter: 53.0mm (2.087 in) 4. Install the oil distributor in the transmission case. 5. Insert the output shaft. 6. Install the rear planetary gear unit (connecting drum, rear planetary pinion carrier and one-way clutch) in the low and reverse brake side. Gartner Banana

TRANSMISSION K DRUM SUPPORT (2) Measure distances C and D with a straight edge and vernier calipers. (3) Calculate the front clutch end play by using the for- mula below. Formula: T=C-04.1 mm {0.0039 In) T Front clutch end play. C: The distance between the drum support mounting surface (including the drum support gasket) of the transmission case and the bearing surface on the front clutch assembly. D: The distance between the sliding surface of the bearing and the drum support gasket contact sur- face. 0.1 :The compression amount of a new gasket. (4) Adjust the front clutch end play by selecting the prop- er bearing race. Front clutch end play: 0.5--0.8mm (0.020--0.031 in) Bearing race sizes rnm (in) 16. Set the 2nd brake band and strut in position. 17. Tighten the piston stem lightly. 18. Apply petroleum jelly to the bearings and bearing races, and install them as shown. Bearing outer diameter 0: 35.0mm (1.38 in) @: 70.0mm (2.76 in) Bearing race outer diameter 0: 76.0mm (2.99 in) 0: 33.0mm (1.30 in) Gartner Banana

K TRANSMISSION APPLY SEALANT a 23. Insert the intermediate shaft. The end with the long splines should face front. 24. Apply petroleum jelly to the large bearing race and install it into the fourth gear case. 2 Bearing race outer diameter: 70mm (2.756 in) 25. Apply petroleum jelly to the small bearing and small bearing race, and install them as shown. Bearing outer diameter: 35.0mm (1.378 in) Bearing race outer diameter: 33.0mm (1.299 in) 26. lnstall the fourth gear brake band and band strut. 27. lnstall the fourth gear connecting shell and fourth gear planetary gear unit (fourth gear sun gear, fourth gear planetary pinion carrier, fourth gear clutch hub) onto the direct clutch. 28. lnstall the direct clutch assembly into the fourth gear case. --/ 29. lnstall the oil pump assembly into the transmission case by hand only, using two converter housing bolts as guides. Measure the height difference between the top of the transmission case and the oil pump. 30. Remove the converter housing bolts. Apply sealant to the bolts. 31. Apply sealant to the contact surfaces of the converter housing and oil pump. 32. lnstall the converter housing onto the oil pump, and tight- en the bolts evenly in a crisscross pattern. Tightening torque: 59-68 N-m (6.0-7.0 kgfm, 44--50 ft4bf) 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 DRIVE PLATE DRIVE PLATE PREPARATION SST Brake set, ring gear 49 EOll 104 Collar (Part of 49 E011 1AO) For holding ring gear For holding ring gear 49 EOll 103 Shaft (Part of - - 49 EOl 1 1 AO) Stopper (Part of 49 EOll 1AO) REMOVAL I INSPECTION I INSTALLATION 1. Remove in the order shown in the figure, referring to Removal Note. 2. lnspect all parts and repair or replace as necessary. 3. Install in the reverse order of removal, referring to Installation Note. For holding ring gear For holding ring gear 1. Transmission 4. Drive plate Removal ................. page K- 45 Removal Note ............ page K-153 Installation ............... page K-148 Inspect for cracks. Inspect ring gear for .J 2. Bolts wear and damage 3. Backing plate Installation Note .......... page K-153 5. Adapter Gartner Banana