1994 MAZDA MX-5 wheel

Before beginning any service procedure. refer to section T of this manual for air bag system service warnings and audio antitheft system alarm conditions . FRONT AND REAR AXLES ....................................... INDEX M- 2 ..................................... OUTLINE M- 3 SPECIFICATIONS ........................... M- 3 TROUBLESHOOTING GUIDE .................. M- 4 ............................... FRONT AXLE M- 4 ................................ REAR AXLE M- 4 ............................. DIFFERENTIAL M- 4 ................................. FRONT AXLE M- 5 PREPARATION ............................. M- 5 WHEEL HUB. STEERING KNUCKLE .......... M- 6 .................................. REAR AXLE M-10 PREPARATION ............................. M-10 ......................... DISC BRAKE TYPE M-11 ................................ DRIVE SHAFT M-17 .................... DOUBLE OFFSET JOINT M-17 ............................... DIFFERENTIAL M-23 PREPARATION ............................. M-23 DIFFERENTIAL OIL ......................... M-25 ................. OIL SEAL (OUTPUT SHAFT) M-25 DIFFERENTIAL. STANDARD; DIFFERENTIAL. TORQUE SENSING LIMITED SLIP ("TORSEN" LSD) ........................... M-27 45UOMX-001 "TORSEN" is a registered trademark of ZEXEL-GLEASON USA . INC Gartner Banana

OUTLINE OUTLINE Front axle Rear axle Differentlal Drive shaft Item I Specifications TY pe Bearing Double-wishbone Angular ball bearing Maximum wheel bearing play mm {in} TY pe Bearing 0.05 {0.002} Double-wishbone Angular ball bearing Maximum wheel bearing play mm {in} Type Reduction gear Reduction ratio Oil I Viscosity 0.05 {0.002} -- ---- Differential gear Ring gear size mm {in} Grade Above -1 8°C {O°F}: SAE 90 Below -1 8°C {O°F}: SAE 80 Standard Hypoid gear Straight-bevel gear 182.88 {7.20) API service GL-5 I Capacity L {US qt. imp qt} I 1 .OO {I .06,0.88) "TORSEN" LSD Worm gear 4.100 TY ~e Length mm {in} Constant velocity (double offset) joint 640.6 I25.220) 45UOMX-00 Gartner Banana

TROUBLESHOOTING GUIDE TROUBLESHOOTING GUIDE FRONT AXLE I Problem Posslbk Cause Worn or damaged wheel bearing Worn or damaged wheel bearing Steering wheel vibration braking Action Replace Replace REAR AXLE Page M- 6 M-6 I Problem Possible Cause Bent drive shaft Page Action Replace I Abnormal nolse Worn or damaged wheel bearing Worn drive shaft spline Worn or deteriorated upper arm bushing M-13 Replace I M-17 Body "rolls" I Replace section R Body leans Weak upper arm bushing Abnormal nolse from suspension system Worn or deteriorated upper arm bushing DIFFERENTIAL Problem Posrlble Cause lnsufficient differential oil Incorrect differential oil lmproperly adjusted ring gear backlash Poor contact of ring gear teeth Worn or damaged side bearing Worn or damaged ring gear Worn or damaged drive pinion bearing Worn or damaged pinion and side gear (STANDARD) Worn or damaged gear in LSD assembly ("TORSEN" LSD) Seized side gear and case Worn side gear spline Worn pinion shaft Worn thrust washer Worn or damaged needle bearing ("TORSEN" LSD) lmproperly adjusted side gear backlash lmproperly adjusted drive pinion gear preload Action Add oil Replace Adjust Adjust Replace Replace Replace Replace Replace Page M-25 M-25 M40 M4l M-32 M-32 M-32 M-32 M-32 M-32 M-32 M-32 M-32 M-32 M-40 M-39 Abnormal nolse Replace Replace Replace Replace Replace Adjust Adjust Heat buildup lnsufficient differential oil lnsufficient drive pinion gear backlash Excessive bearing preload Add oil Adjust Adjust Oil leakage Excessive differential oil Loose differential carrier Worn or damaged oil seal Remove oil Tighten or repair Replace I - No dlfferentlal operation I Misassembled or damaged Repair Gartner Banana

FRONT AXLE WHEEL HUB, STEERING KNUCKLE Inspection / Removal / lnstallation 1. lnspect wheel bearing play, referring to Inspection. 2. Remove in the order shown in the figure, referring to Removal Note. 3. lnspect all parts and repair or replace as necessary. 4. Install in the reverse order of removal, referring to Installation Note. 25UOMX-OC 1. Front wheel 9. Lower arm 2. Brake caliper assembly Removal Note .............. page M-7 3. Disc plate 4. Hub cap 5. Locknut Installation Note ............ page M-7 6. Front wheel hub assembly lnspect for cracks and damage Disassembly / Inspection / Assembly ................. page M-8 7. Wheel speed sensor (ABS) 8. Tie-rod end Removal Note .............. page M-7 Service ..................... section N .............. Removal Note page M-7 ..................... Service section R 10. Upper arm .............. Removal Note page M-7 ..................... Service section R 11. Dust cover and knuckle spindle lnspect dust cover for damage and distortion lnspect knuckle spindle for cracks and damage Disassembly / Inspection 1 ................. Assembly page M-8 lnspection Wheel bearing play 1. Remove the wheel, brake caliper assembly, and disc plate, referring to Removal note below. 2. Position a dial indicator against the wheel hub. Push and pull the wheel hub by hand in the axial direction and measure the wheel bearing play. If the bearing play exceeds specification, check and adjust the locknut torque or replace the wheel hub i assembly if necessary. Maximum wheel bearing play: 0.05mm i0.002 in) Gartner Banana

M FRONT AXLE Disassembly 1 Inspection 1 Assembly 1. Disassemble in the order shown in the figure, referring to Disassembly Note. 2. Inspect all parts and repair or replace as necessary. 3. Assemble in the reverse order of disassembly, referring to Assembly Note. DO NOT DISASSEMBLE @$ REPLACE N.m (kgfm, ftdbf} 1. Dust cover 4. Hub bolt 2. Knuckle spindle Disassembly Note ........... page M-8 3. Sensor rotor (ABS) Assembly Note ............. page M-9 Disassembly Note ........... page M-8 5. Front wheel hub assembly Assembly Note ............. page M-9 Inspection .................. page M-9 Disassembly note ' Sensor rotor (ABS) I Secure the front wheel hub in a vise and remove the sen- sor rotor by using the SST. Note The sensor rotor does not need to be removed unless you are replacing it. ..-.' Gartner Banana

FRONT AXLE M Hub bolts Note The hub bolts do not need to be removed unless you are replacing them. Remove the hub bolts with a press. Assembly note Hub bolts Install the new hub bolts with a press. Sensor rotor (ABS) Install a new sensor rotor by using the SST and a press. Inspection Front wheel hub assembly Inspect for damage. Gartner Banana

M REAR AXLE REAR AXLE PREPARATION SST 49 F026 103 Puller, wheel hub L==l I. - I For disassembly and assembly of rear axle 49 8026 1 A0 Puller, wheel hub For disassembly and assembly of wheel hub 49 GO33 102 Handle (Part of 49 8026 1 AO) For removal and installation of rear wheel hub For removal and installation of rear wheel hub Attachment A (Part of 49 8026 1 AO) - --- 49 GO30 795 Installer, oil seal For installation of oil seal For removal and installation of wheel bearing Handle (Part of 49 GO30 795) For removal of wheel bearing 49 GO33 107 Installer, dust cover For installation of dust cover Puller, fan pulley boss 49 F027 OAI For installation of bearing 49 F027 005 Attachment $62 (Part of 49 F027 OAl ) For assembly of rear axle Installer set, bearing 49 F027 009 Attachment $68 & 77 (Part of 49 F027 OAl ) For assembly of rear axle For assembly of rear axle Attachment 9'72 (Part of 49 F027 OA1) For installation of oil seal Installer, oil seal Gartner Banana

REAR AXLE M DISC BRAKE TYPE Inspection 1 Removal 1 Installation 1. lnspect wheel bearing play, referring to Inspection. 2. Remove in the order shown in the figure, referring to Removal Note. 3. lnspect all parts and repair or replace as necessary. 4. Install in the reverse order of removal, referring to Installation Note. 5. After installation, adjust the rear wheel alignment. (section R.) @ REPLACE 21 6294 {2230,159-217) N.m {kgf m, Rlbf) 1. Rear wheel 2. Brake caliper assembly Removal Note . . . . . . . . . . . . . page M-12 3. Disc plate 4. Locknut Installation Note . . . . . . . . . . . page M-12 5. Wheel speed sensor (ABS) 6. Sensor bracket 7. Knuckle, wheel hub, and dust cover lnspect knuckle for cracks and damage lnspect wheel hub for cracks and damage lnspect dust cover for damage and distortion Disassembly / Inspection / Assembly . . . . . . . . . . . . . . . . page M-13 Gartner Banana