engine MAZDA MX-5 1994 Workshop Manual

K SHIFT MECHANISM (WITH SHIFT-LOCK SYSTEM) POSSIBLE TO SHIFT BRAKEPEDAL DEPRESSED P RANGE POSSIBLE TO TURN IN LOCK POSITION I Shift-lock System Operation Inspection Shift-lock system 1. Turn the ignition switch ON, engine OFF 2. Verify that the selector lever is in P range. u 3. Without the brake pedal depressed, verify that the selec- tor lever cannot be shifted from P range. 4. Depress the brake pedal. Verify that the selector lever can be shifted from P range. 5. Shift the selector lever to R range. 6. Verify that the ignition key cannot be turned to the LOCK position. 7. Shift the selector lever to P range. 8. Verify that the ignition key can be turned to the LOCK position. 9. If not as specified, inspect and repair as necessary, re- ferring to "Troubleshooting". Emergency override button 1. Verify that the engine is off. 2. Verify that the selector is locked in P range. 3. Remove the indicator panel cover with the screwdriver as shown. 4. Insert the screwdriver into the emergency override hole, ,, push down, and verify that the selector lever can be shifted from P range. 5. If not as specified, inspect and repair as necessary, re- ferring to "Troubleshooting". Gartner Banana

L OUTLINE, TROUBLESHOOTING GUIDE, PROPELLER SHAFT OUTLINE SPECIFICATIONS TROUBLESHOOTING GUIDE Enginefrransmission Problem I Possible Cause BP DOHC Vibration Worn universal joint Bent propeller shaft Worn slip yoke splines Runout of propeller shaft Unbalanced propeller shaft Item MI 5M-D Abnormal noise NC4A-EL Worn or damaged universal joint Worn slip yoke splines PROPELLER SHAFT PREPARATION SST 1,001 (39.41) 816 (32.1) 60.5 ( 2.38) Length mm {in) Outer diameter mm{in) Holder, main shaft Ll L2 D For prevention of oil leakage Action 1 Page Replace Replace Replace Replace Replace Replace Replace Gartner Banana

DIFFERENTIAL M DIFFERENTIAL PREPARATION u SST 49 01 07 680A Engine stand For disassembly and assembly of differential 49 MOO5 561 Hanger, differential carrier For disassembly and assembly of differential For removal of bearing inner race (side bearing) 49 NO34 21 3 Installer, rubber bushing For installation of differential mounting rubber - --.. - Puller, fan pulley boss 49 GO30 795 Installer, oil seal For installation of oil seal For installation of bearing outer race Handle (Part of 49 GO30 795) 49 BOO1 795 Installer, oil seal For installation of oil seal (output shaft) 49 F027 004 Attachment $80 For installation of bearing outer race (rear bearing) 49 F027 OAl For installation of bearing 49 F027 005 Attachment $I62 (Part of 49 F027 OAl ) For installation of bearing outer race (front bearing) Installer set, bearing 49 F027 OAO Gauge set, pinion height adjustment 49 0727 570 Gauge body, pinion height (Part of For adjustment of pinion height For adjustment of pinion height 49 F027 OAO) For adjustment of pinion height For adjustment of oinion height Pinion model @==@ Collar A (Part of 49 8531 565) For adjustment of oinion height adjustment of )inion height Gauge block Gartner Banana

DIFFERENTIAL M t- 900mm (35.43 in) 10. Remove the transmission-side bolts, and remove the PPF. Do not remove the spacers from the PPF. If they are removed, replace the PPF as an assembly. Drive shaft Mark the drive shaft and output shaft for proper installa- tion. Differential 1. Support the differential with a jack. 2. Lower the differential and move it forward. Note If the drive shaft will not separate easily from the out- put shaft, remove a bolt and nut from one side of the upper arm. 3. Separate the driveshaft from the output shaft. 4. To prevent damaging the fire wall, crank angle sensor, and engine mount, support the transmission as follows. (1) Prepare a steel plate (as shown in the figure), a wooden block, bolts (M8 x 1.25), and washers. (2) Install the parts as shown in the figure. Gartner Banana

Before beginning any service procedure. refer to section T of this manual for I air bag system service warnings and audio antitheft system alarm conditions . STEERING SYSTEM INDEX ....................................... N- 2 OUTLINE ..................................... N- 4 SPECIFICATIONS ........................... N- 4 MANUAL STEERING .......................... N- 4 PREPARATION ............................. N- 4 ................ TROUBLESHOOTING GUIDE N- 5 BOOT ...................................... N- 6 STEERING WHEEL AND COLUMN ........... N- 8 ............. STEERING GEAR AND LINKAGE N-12 ENGINE SPEED SENSING POWER STEERING .......................... N-18 PREPARATION ............................. N-18 TROUBLESHOOTING GUIDE ................ N-20 AIR BLEEDING ............................. N-21 POWER STEERING FLUID ................... N-22 STEERING WHEEL AND COLUMN ........... N-24 STEERING GEAR AND LINKAGE ............. N-25 POWER STEERING OIL PUMP ............... N-33 DRIVE BELT ................................ N-37 25UONX-001 Gartner Banana

N OUTLINEIMANUAL STEERING OUTLINE SPECIFICATIONS Steering wheel Steering shaft and joint d Type Steering gear Outer diameter mm {in) I 370 {I 4.6) I Manual steering Power steering Lock-to-lock turns Shaft ~oinr Power assist 3.36 2-cross joint - I Engine speed sensing Gear Gear ratio 2.8 Rack-and-pinion m (infinite) Rack stroke mm {in} Power steering fluid MANUAL STEERING Collapsible, non-tilt 121 .O i4.76) - I ATF DexronBII or M-111 ~luidca~acit~ L~S qt, Imp qt) I - PREPARATION SST 0.8 (0.85, 0.70) Preload attachment 25UONX-003 Hexagon wrench 49 GO30 797 Handle For removal of tie-rod end 49 1243 785 Installer, boot For measurement of pinion torque For installation of bushing 49 0208 701 A Boot air out tool - For removal and installation of adjusting cover For installation of tie-rod end boot 49 DO32 31 6 Protractor For removal of oil seal For tightening of adjusting cover Gartner Banana

MANUAL STEERING TROUBLESHOOTING GUIDE Problem Steering heavy Posslble Cause Poor lubrication, foreign material, or abnormal wear of steering ball joint Stuck or damaged lower arm ball joints lmproper steering pinion preload Damaged steering gear Malfunction of steering shaft joint lmproperly adjusted wheel alignment Malfunctioning steering gear Replace Replace gear Replace Replace Adjust Replace ~ction- Lubricate or replace section R N-12 N-12 N- 9 section R N-12 ~i&d~ection N-13 General instability while driving Steering wheel pulls to one side Shake (Steering wheel vibrates upidown) Worn or damaged stabilizer and/or suspension arm bushings Dragging brake Loose lower arm lmproperly adjusted wheel alignment lncorrect tire pressure Damaged or unbalanced wheel Worn or damaged steering joints lmproper steering pinion preload Weak front coil spring Worn or damaged stabilizer andlor suspension arm bushings Malfunctioning shock absorber lmproperly adjusted wheel alignment Excessive tire and/or wheel runout Loose lug nuts Unbalanced wheel(s) Incorrect tire pressure Incorrect tire pressure Unevenly worn tires Weak front spring Replace Repair Tighten Adjust Adjust Adjust or replace Replace Replace gear Replace Replace Replace Adjust Replace Tighten Adjust or replace section R section P section R section R section Q section Q N- 9 N-12 section R section R section R section R section Q section Q section Q Adjust Adjust Replace Replace section Q section Q section Q section R I Cracked or worn transmission mount I Cracked or worn engine mount 1 ~e~lace I section B lncorrect tire pressure Unevenly worn tires Malfunction of shock absorber Shimmy (Steering wheel vibrates circumferentially) Excessive steering wheel play Cracked or worn steering gear mount Loose steering gear mounting bolts Stuck or damaged steering ball joint Excessive tire and/or wheel runout Loose lug nuts Unbalanced wheel(s) Adjust Replace Replace Replace Replace Tighten Replace Replace Tighten Adjust or replace section Q section Q section R section J N-12 N-12 N-13 section Q section Q section Q I Loose shock absorber mounting bolts 1 Tighten I section R Stuck or damaged lower arm ball joint Cracked or worn suspension bushings Damaged or worn front wheel bearing lmproperly adjusted front wheel alignment Worn steering gear Worn or damaged steering joints Worn or damaged suspension arm bushings Loose steering gear mounting bolts I lmproperly adjusted front wheel alignment Poor steering wheel return Replace Replace Replace Adjust Replace Replace Replace Tighten Replace Adjust Replace Adjust Worn linkage &-tie-rod ball joint lncorrect tire pressure Stuck or damaged steering joints section R section R section M section R N-12 N- 9 section R N-12 N-12 section Q N- 9 section R Abnormal noise from steering system 25UONX-00! Improper steering pinion preload Ball joint not operating smoothly Steering shaft contacting something Loose steering gear Malfunctioning steering gear Obstruction near steering column Loose steering linkage Worn steering joints Replace gear Replace Repair Tighten Replace Repair or replace Tighten or replace Replace N-12 N-13 N- 9 N-12 N-12 N- 9 N-12 N- 9 Gartner Banana

N ENGINE SPEED SENSING POWER STEERING ENGINE SPEED SENSING POWER STEERING PREPARATION SST For removal of tie-rod end For installation of tie-rod end boot 49 01 1 8 850C Puller, ball joint Installer, boot For inspection of power steering fluid pressure For inspection of power steering fluid pressure - --- - - Gauge (Part of 49 1232 670A) Gauge set, power steering For inspection of power steering fluid pressure For inspection of power steering fluid pressure 49 H002 671 Adapter, power steering gauge dP--= &--- Valve body (Part of 49 1232 670A) For removal and installation of upper bearing For pressurize oil seal For removal of backup ring and oil seal For inspection of power steering fluid pressure 49 DO32 306 Support block For removal of upper bearing For pressurize oil seal For removal of backup ring and oil seal 49 DO32 304 Installer, oil seal and bearing Handle / For installtion of oil seal and center bearing 49 DO32 301 Installer body, oil seal and bearing 49 NO32 303 Remover, backup ring and oil seal 49 DO32 31 6 Protractor For removal of oil seal and center bearing For installation of adjusting cover 49 DO32 307 Remover, oil seal and bearing For installtion of oil seal 49 DO32 303 Attachment For installation of center bearing Attachment Gartner Banana

ENGINE SPEED SENSING POWER STEERING N For installation of oil seal 49 NO32 301 Protector body, oil seal For installation of oil seal Guide, oil seal 0 49 NO32 305 Protector, backup ring and oil seal For installtion of steering rack assembly For installation of holder 49 NO32 304 Protector, oil seal 49 DO32 31 3 Seal ring former For formation of seal ring of pinion shaft 49 DO32 315 Former and guide, seal ring For formation of seal ring of control valve 49 DO32 31 0 Protector, pinion shaft For installation of plug assembly For pressurize upper bearing 49 DO32 305 Remover, oil seal and bearing 49 GO32 31 7 Hose For inspection of cylinder sealing For inspection of cylinder sealing For disassembly of oil pump For measurement of pinion torque Preload attachment Holder 49 9200 020 V-ribbed belt tension gauge For measurement of drive belt tention Gartner Banana

N ENGINE SPEED SENSING POWER STEERING TROUBLESHOOTING GUIDE Steering feels heavy - - Poor lubrication, foreign material, or abnormal wear of steering ball joint Stuck or damaged lower arm ball joints lmproper steering pinion preload Damaged steering gear Malfunctioning steering shaft joint Problem I lmproperly adjusted wheel alignment Possible Cause 1 Malfunctioning steering gear lncorrect tire pressure Loose or damaged oil pump drive belt Low fluid level or air in fluid I Leakage of fluid I Insufficient oil pump pressure Steering wheel pulls lncorrect tire pressure to one side Unevenly worn tires ( Weak front spring General instability while driving Worn or damaged stabilizer and/or upper or lower arm bushing Dragging brake Loose lower arm lmproperly adjusted wheel alignment lncorrect tire pressure Damaged or unbalanced wheel Worn or damaged steering joint(s) lmproper steering pinion preload Weak front coil spring Worn or damaged stabilizer and/or upper or lower arm bushing Malfunctioning shock absorber Cracked or worn engine mount Cracked or worn transmission mount Shake (Steering wheel vibrates up/ down) Shimmy (Steering wheel vibrates left1 right) lmproperly adjusted wheel alignment Excessive tire and/or wheel runout Loose lug nuts Unbalanced wheel(s) Excessive steering wheel play Poor steering wheel return Cracked or worn steering gear mount Loose steering gear mounting bolts Stuck or damaged steering ball joint Excessive tire and/or wheel runout Loose lug nuts Unbalanced wheel@) lncorrect tire pressure Unevenly worn tires Malfunctioning shock absorber Loose shock absorber mounting bolts Stuck or damaged lower arm ball joint Cracked or worn suspension bushings Damaged or worn front wheel bearing lmproperly adjusted front wheel alignment Worn steering gear Worn or damaged steering joints Worn or damaged lower arm bushing Loose steering gear mounting bolts Worn linkage or tie-rod ball joint lncorrect tire pressure Stuck or damaged steering joints lmproperly adjusted front wheel alignment lmproper steering pinion preload Ball joint not operating smoothly Steering shaft contacting something Action Lubricate or replace Replace Adjust Replace Replace Adjust Replace Adjust Adjust or replace Add fluid or bleed air Repair or replace Replace Adjust Replace Replace Replace Repair Tighten or replace Adjust Adjust Adjust or replace Replace Adjust Replace Replace Replace Adjust Replace Tighten Adjust or replace Replace Replace Replace Tighten Replace Replace Tighten Adjust or replace Adjust Replace Replace Tighten Replace Replace Replace Adjust Replace Replace Replace Tighten Replace Adjust Replace Adjust Adjust Replace Repair Pagelsection N-25 section R N-32 N-25 N- 9 section R N-25 section Q N-37 N-21,22 - N-34 section Q section Q section R section R section P section R section R section Q section Q N- 9 N-32 section R section R section R section R section Q section Q section Q section B section J N-26 N-25 N-25 section Q section Q section Q section Q section Q section R section R section R section R section M section R N-25 N- 9 section R N-25 N-25 section Q N- 9 section R N-32 N-25 N- 9 Gartner Banana