wheel bolt torque MAZDA MX-5 1994 User Guide

WHEELS AND TIRES SHOULDER WEAR CENTER WEAR (c) (4 FEATHERED EDGE TOE-IN OR TOE- UNEVEN WEAR OUT WEAR Troubleshooting guide Abnormal tire wear patterns, such as those shown in the illustration can occur. Refer to the chart for the possible causes and actions. d' Possible cause I Action I I Underinflation (both sides worn) I Measure and adjust pressure Overinflation Measure and adjust pressure Lack of rotation Rotate tires I Incorrect camber (one side worn) Hard cornering Lack of rotation Incorrect toe-in I Adjust toe-in I Repair or replace suspension parts Reduce speed Rotate tires 1. Cracks, damage, and foreign matter (such as metal pieces, nails, and stones) in the tire and cracks, deformation, and damage to the wheel. 2. Loose wheel lug nut(s). 3. Air leaking from valve stem. Incorrect camber or caster Malfunctioning suspension Unbalanced wheel Out-of-round brake drum or disc Other mechanical conditions Lack of rotation REMOVAL / INSTALLATION When reinstalling a wheel, retighten the lug nuts to the specified torque after about 1,000 km (620 miles} driv- ing. Repair or replace suspension parts Repair or replace Balance or replace Correct or replace Correct or replace Rotate tires Caution Applying oil to the lug nuts, bolts, or wheels will cause the lug nuts to become loosened. Tighten the lug nuts to the specified torque in a criss- cross fashion. Verify that the wheel-to-hub contact surfaces are clean. Tightening torque: 88-11 8 N.m (9-1 2 kgf.m, 65--87 ft-lbf) Gartner Banana

WHEEL ALIGNMENT LEFT WHEEL INCREASE CAM BOLT RIGHT WHEEL 0) '. jr INCREASE Adjustment Maximum steering angle 1. Remove the steering gear boot clamp. 2. Loosen the tie rod locknut. 3. Turn the tie rod to provide the correct maximum steering angle. 4. After adjustment, tighten the locknut to the specified torque. Tightening torque: 3539 N-m (3.W.0 kgf-m, 26-28 ftdbf) 5. Adjust the toe-in. (Refer to page R-8.) 6. Verify that the boot is not twisted, and install the boot clamp. Caster Caster is adjusted by turning the front and/or rear adjust- ing cam bolts at the lower arm. Caution Adjust the caster before adjusting the camber. 1. Loosen the front and/or rear cam nuts. 2. Turn the front and/or rear adjusting cam bolts to provide the correct caster angle. Left wheel Right wheel Caster I Front cam I Rear cam I Front cam I Rear cam Counter- 1 Clockwise I Clockwise 1 I Increase I ( clockwise Note Turning the front cam one graduation on the scale changes the caster angle about 22' and the camber about 25'. Turning the rear cam one graduation changes the caster angle about 22' and the camber about 2'. Decrease 3. Adjust the camber and the toe-in. Clockwise Clockwise Counter- clockwise Counter- clockwise Gartner Banana

WHEEL ALIGNMENT LEFT WHEEL POSITIVE RIGHT WHEEL POSITIVE Camber Camber is adjusted by turning the front and rear adjust- ing cam bolts at the lower arm. 2 Caution Adjust the camber after adjusting the caster. 1. Loosen the front and rear cam nuts. 2. Turn the front and rear adjusting cam bolts the same amount in the opposite direction to provide the correct camber angle. Left wheel Note Turning the front cam one graduation changes the camber about 25' and the caster about 22'. Turning the rear cam one graduation changes the camber about 2' and the caster about 22'. Right wheel Positive Negative Note If the cam cannot be turned far enough to make the adjustment, begin again at adjustment of the caster using the other cam. i 3. Tighten the nuts. I Caster I Front cam 1 Rear cam I Front cam I Rear cam Tightening torque: 94--112 N.m (9.5-11.5 kgf.m, 69-43 ftlbf) clockwise Counter- Clockwise 4. Adjust the toe-in. Toe-in 1. Remove the steering gear boot clamp. 2. Loosen the left and right tie rod locknuts, and turn the tie rods by the same amount. 3. Loosen the left and right tie rod locknuts and turn the tie rods equally. Both tie rods are right threaded, so turning the right tie rod toward the front of the vehicle and the left toward the rear increases toe-in. Clockwise Counter- clockwise Note Turning both tie rods one complete turn changes toe-in by about 7 mm (0.28 in}. 4. Tighten the tie rod locknuts to the specified torque. Clockwise Counter- clockwise Tightening torque: 35-39 N.m (3.5--4.0 kgf.m, 26--28 ft4bf) Counter- clOCkWise Clockwise 5. Verify that the boot is not twisted, and install the boot - clamp. Gartner Banana

FRONT SUSPENSION (DOUBLE-WISHBONE) FRONT SUSPENSION (DOUBLE-WISHBONE) PREPARATION SST 49 0727 575 Puller, socket oint Attachment, steering worm bearing preload measuring 49 GO34 1 A0 Compressor, coil spring Screw (Part of - 49 GO34 1 AO) - Wrench, flare nut For removal of lower arm ball joint For 1 49 GO34 101 49 01 18 850C Puller, ball joint For inspection of upper arm ball joint 49 H028 301 Installer, dust boot For 1 49 GO34 103 removal and installation of coil spring Body (Part of 49 GO34 1 AO) For removal and installation of brake pipe removal and installation of coil spring SHOCK ABSORBER AND SPRING Removal / Installation 1. Jack up the front of the vehicle and support it with safety stands. 2. Remove the undercover. 3. Remove the band for the wheel speed sensor harnes. 4. Remove in the order shown in the figure, referring to Removal Note. Arm (Part of 49 GO34 I AO) 5. Inspect all parts and repair or replace as necessary. 6. Install in the reverse order of removal. For removal of upper arm ball joint For installation of front lower arm boot For removal and installation of coil spring For removal and installation of coil spring 7. Loosely tighten the shock absorber, upper arm, stabilizer control link, and stabilizer bracket bolts. Tighten all other nuts and bolts to the specified torques. 8. Install the band for the wheel speed sensor. 9. Lower the vehicle. 10. With the vehicle unloaded, tighten the upper arm and shock absorber bolts to the specified torques. - 11. Adjust the front wheel alignment. (Refer to page R-6.) 25UORX406 Gartner Banana

FRONT SUSPENSION (DOUBLE-WISHBONE) LOWER ARM Removal / lnspection I Installation 1. Jack up the front of the vehicle and support it with safety stands. 2. Remove the undercover. 3. Remove in the order shown in the figure, referring to Removal Note. 4. lnspect all parts and repair or replace as necessary. 5. Install in the reverse order of removal, referring to lnstallation Note. 6. Loosely tighten the lower arm, shock absorber, and stabilizer control link bolts. Tighten all other nuts and bolts to the specified torque with the vehicle unladen. 7. Lower the vehicle. 8. With the vehicle unloaded, tighten the lower arm, shock absorber, and stabilizer control link bolts to the - specified torques. 9. Adjust the front wheel alignment. (Refer to page R-6.) 1. Wheel and tire 15UORX-012 5. Ball joint dust boot 2. Stabilizer control link bolt emo oval ~ote ............. page R-16 3. Shock absorber bolt Installation Note ........... page R-16 u 4. Lower arm ball joint 6. Lower arm Removal Note ............. page R-16 Inspect for damage and cracks Inspection ................. page R-16 7. Lower arm bushing (front and rear) lnspect for deterioration and wear Gartner Banana

FRONT SUSPENSION (DOUBLE-WISHBONE) R UPPER ARM Removal I Inspection I Installation 1. Jack up the front of the vehicle and support it with safety stands. L/ 2. Remove the undercover. 3. Remove the band for the wheel speed sensor harness. 4. Remove in the order shown in the figure, referring to Removal Note. 5. lnspect all parts and repair or replace as necessary. 6. Install in the reverse order of removal, referring to Installation Note. 7. Loosely tighten the upper arm and shock absorber bolts. Tighten all other nuts and bolts to the specified torques. 8. Install the band for the wheel speed sensor harnes. 9. Lower the vehicle. 10. With the vehicle unloaded, tighten the upper arm and shock absorber bolts to the specified torques. 11. Adjust the front wheel alignment. (Refer to page R-6.) 25UORX-01 1. Wheel and tire 5, Ball ioint dust boot Upper arm ball joint demoval ~ote ............. page R-18 Removal Note ............. page R-18 Installation Note ........... page R-18 Shock absorber bolt 6. Upper arm bushing (front and rear) 4. Upper arm Inspect for deterioration and damage Inspect for damage and cracks Gartner Banana

FRONT SUSPENSION (DOUBLE-WISHBONE) CROSSMEMBER Removal I Inspection 1 lnstallation Note 4 Use a container or rags to collect the power steering fluid when disconnecting the power steering pipes. 1. Jack up the vehicle. 2. Remove the wheels and the undercover. 3. Support the engine with a hoist. 4. Lower the crossmember and other suspension parts as an assembly, and then separate the parts. 5. Remove in the order shown in the figure. 6. lnspect all parts and repair or replace as necessary. 7. Loosely tighten the stabilizer bracket, upper arm, and lower arm bolts. Tighten all other nuts and bolts to the specified torques. 8. Lower the vehicle. 9. With the vehicle unloaded, tighten the stabilizer bracket, upper arm, and lower arm bolts to the specified torques. 10. Adjust the front wheel alignment. (Refer to page R-6.) 11. Bleed the air from the brake system. (Refer to section P.) 12. Bleed the air from the Power Steering System. (Refer to section N.) Q - re-no ~L1.3--11.W, Okl-m} 94-1;2 (9.Cll.5,69--83) 1 &26 {1.&2.7,14--19) 1 S21 (1 3-- 1. Brake pipe Removal / lnstallation . . . . . . . . . Section P 2. Pinion shaft bolt Removal / lnstallation . . . . . . . . Section N 3. Power steering pipe Removal 1 lnstallation . . . . . . . . Section N 4. Shock absorber bolt 5. Stabilizer bracket bolt 6. Upper arm bolt 7. Performance rod 8. Adjusting cam bolt 9. Steering gear bracket bolt 10. Front crossmember assembly lnspect for damage Gartner Banana

R REAR SUSPENSION (DOUBLE-WISHBONE) SHOCK ABSORBER AND SPRING Removal / Installation 1. Jack up the front of the vehicle and support it with safety stands. 2. Remove in the order shown in the figure, referring to Removal Note. 3. Inspect all parts and repair or replace as necessary. 4. Install in the reverse order of removal. 5. Loosely tighten the stabilizer control link bolt. Tighten all other nuts and bolts to the specified torques. 6. Lower the vehicle. 7. With the vehicle unloaded, tighten the stabilizer control link bolt to the specified torques. 8. Adjust the rear wheel alignment. (Refer to page R-9.) Nm (kgfm, ft4bf) 1. Wheel and tire 2. Filler pipe protector (left side) 3. Stabilizer control link bolt 4. Shock absorber and spring Removal Note . . . . . . . . . . . . . page R-22 Disassembly l Inspection / Assembly . . . . . . . . . . . . . . . . page R-13 Removal note Shock absorber and spring Caution Do not lower the arms excessively, which may damage the brake hose. 1. Loosen the upper arm and Adjusting cam nuts. 2. Lower the upper and lower arms to remove the shock absorber and spring. Gartner Banana

REAR SUSPENSION (DOUBLE-WISHBONE) LOWER ARM Removal / Inspection / Installation 1. Jack up the rear of the vehicle and support it with safety stands. 2. Remove in the order shown in the figure. 3. lnspect all parts and repair or replace as necessary. 4. Install in the reverse order of removal. 5. Loosely tighten the lower arm, shock absorber, and stabilizer control link bolts. Tighten all other nuts and bolts to the specified torques. 6. Lower the vehicle. 7. With the vehicle unloaded, tighten the lower arm, shock absorber, and stabilizer control link bolts to the - specified torques. 8. Adiust the rear wheel alignment. (Refer to page R-9.) 1. Wheel and tire 2. Stabilizer control link bolt 3. Shock absorber bolt 4. Lower arm lnspect for damage and cracks 5. Lower arm bushing (crossmember side and knuckle side) lnspect for deterioration and wear Gartner Banana

REAR SUSPENSION (DOUBLE-WISHBONE) UPPER ARM Removal I Inspection I Installation 1. Jack up the rear of the vehicle and support it with safety stands. 2. Remove in the order shown in the figure. 3. lnspect all parts and repair or replace as necessary. 4. Install in the reverse order of removal. 5. Loosely tighten the upper arm bolts. Tighten all other nuts and bolts to the specified torques. 6. Lower the vehicle. 7. With the vehicle unloaded, tighten the upper arm bolts to the specified torques. 8. Adjust the rear wheel alignment. (Refer to page R-9.) REPLACE 1. Wheel and tire 2. Upper arm lnspect for damage and cracks 3. Upper arm bushing lnspect for deterioration and wear Gartner Banana