wheel torque MAZDA MIATA 1991 Factory User Guide
[x] Cancel search | Manufacturer: MAZDA, Model Year: 1991, Model line: MIATA, Model: MAZDA MIATA 1991Pages: 392, PDF Size: 29.45 MB
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Removal (Front - B2600i & MPV 4WD)
1. Raise and support vehicle. Remove engine skid plate. Drain differential. On MPV 4WD, remove tie rod
end and lower arm. Remove front axle shafts. See AXLE SHAFTS
- FRONT article. Mark drive shaft
position, and remove drive shaft.
2. On B2600i, remove differential subframe mounting bolts and nuts. Remove differential, Remote Free
Wheel (RFW) and subframe assembly from vehicle. Remove RFW assembly from right side of
differential housing. Pull drive coupler from carrier. Remove differential carrier retaining bolts. Remove
differential carrier.
3. On MPV 4WD, remove differential housing mounting bolts and mount at end of Remote Free Wheel
(RFW) extension housing. Remove differential and extension housing from vehicle. Remove RFW
assembly from right side of differential housing. Pull drive coupler from carrier. Remove differential
carrier retaining bolts. Remove differential carrier.
Installation
To install, reverse removal procedure. See Fig. 2 or Fig. 3 . Apply Sealant (8527 77 739 ) to carrier mating
flange. Align marks made during removal. Refill differential with lubricant. Tighten all fasteners to
specification. See TORQUE SPECIFICATIONS
.
1991 Mazda MX-5 Miata
1990-91 DRIVE AXLES Differentials & Drive Axles - 929, B2200, B2600i, MX-5 Miata, MPV, Protege & RX-7
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Page 280 of 392
1991 TORQUE SPECIFICATIONS (B2200 & B2600i)
1990 TORQUE SPECIFICATIONS (MIATA)
Splash Shield23-34 (31-46)
Rear Drive Axle
Axle Bearing Lock Nut145-217 (197-294)
Backing Plate Bolt
2WD72-87 (98-118)
4WD65-80 (88-109)
Drive Shaft Companion Flange20-22 (27-30)
Wheel Lug Nuts
Standard Wheel65-87 (88-118)
Styled Wheel87-108 (118-146)
ApplicationFt. Lbs. (N.m)
Brake Pipe Union10-16 (14-22)
Differential Carrier-To-Housing Nuts17-20 (23-27)
Differential Carrier Bearings Cap Bolts
"P" Series Differential41-59 (56-80)
"M" Series Differential27-38 (37-52)
Differential Carrier Bearings Lock Plate Bolt13-19 (18-26)
Drive Pinion Lock Nut94-210 (127-284)
Drive Shaft Companion Flange Nuts20-22 (27-30)
Filler Plug29-40 (39-54)
Front Subframe Mounting Bolts69-85 (94-115)
Rear Axle Bearing Lock Nut145-217 (197-294)
Rear Backing Plate Bolt
2WD72-87 (98-118)
4WD65-80 (88-109)
Ring Gear Retaining Bolts51-61 (69-83)
Splash Shield Bolts23-34 (31-46)
Wheel Lug Nuts
Standard Wheel65-87 (88-118)
Styled Wheel87-108 (118-146)
ApplicationFt. Lbs. (N.m)
Differential Assembly
Differential Carrier-to-Housing17-20 (23-27)
Differential Carrier Bearings Cap Bolts50-66 (68-90)
Differential Carrier Bearings Lock Tab14-19 (19-26)
Differential Case Rear Mounts
Drive Pinion Lock Nut87-130 (118-176)
1991 Mazda MX-5 Miata
1990-91 DRIVE AXLES Differentials & Drive Axles - 929, B2200, B2600i, MX-5 Miata, MPV, Protege & RX-7
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Page 281 of 392
1991 TORQUE SPECIFICATIONS (MIATA)
1990 TORQUE SPECIFICATIONS (MPV 4WD)
Inner Nut61-72 (83-98)
Outer Nuts (2)13-20 (18-26)
Filler Plug29-40 (39-54)
Ring Gear Retaining Bolts51-61 (69-83)
Power Plant Frame-to-Differential Mounting
Spacer Bolt (Short)27-38 (37-52)
PPF-to-Differential Side Mounting Bolts (Long)77-91 (104-123)
PPF-to-PPF Bracket Bolt27-40 (37-54)
Power Plant Frame-to-Transmission
Side Mounting Bolts (Long)77-91 (104-123)
Transmission-to-PPF Bracket Bolts27-40 (37-54)
ApplicationFt. Lbs. (N.m)
Differential Carrier-To-Housing Nuts17-20 (23-27)
Differential Carrier Bearings Cap Bolts27-38 (37-52)
Differential Carrier Bearings Lock Plate Bolt13-19 (18-26)
Differential Case Rear Mount Nuts54-69 (73-94)
Drive Pinion Lock Nut87-130 (118-176)
Inner Nut61-72 (83-98)
Outer Nuts (2)13-20 (18-26)
Drive Shaft Companion Flange Nuts20-22 (27-30)
Filler Plug29-40 (39-54)
Ring Gear Retaining Bolts51-61 (69-83)
Power Plant Frame-To-Differential Mounting
Spacer Bolt (Short)27-38 (37-52)
PPF-To-Differential Bolts
Side Mounting Bolts (Long)77-91 (104-123)
PPF-To-PPF Bracket Bolt27-40 (37-54)
Power Plant Frame-To-Transmission
Side Mounting Bolts (Long)77-91 (104-123)
Transmission-To-PPF Bracket Bolts27-40 (37-54)
Wheel Lug Nuts65-87 (88-118)
ApplicationFt. Lbs. (N.m)
Brake Pipe Union10-16 (14-22)
Differential Assemblies
Differential Carrier Bearings Cap Bolts
Front Differential27-38 (37-52)
Rear Differential54-79 (73-107)
1991 Mazda MX-5 Miata
1990-91 DRIVE AXLES Differentials & Drive Axles - 929, B2200, B2600i, MX-5 Miata, MPV, Protege & RX-7
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1991 TORQUE SPECIFICATIONS (MPV)
1990 TORQUE SPECIFICATIONS (PROTEGE 4WD)
Differential Carrier Bearings Lock Tab13-19 (18-26)
Differential Carrier-to-Housing17-20 (23-27)
Drive Pinion Lock Nut94-210 (127-285)
Filler Plug29-40 (39-54)
Ring Gear Retaining Bolts51-61 (69-83)
Front Axle Components
Differential-to-Chassis Mounts49-72 (66-98)
Drive Shaft Companion Flange36-43 (49-58)
Extension Housing-to-Differential Housing27-40 (36-54)
Lower Ball Joint-to-"A" Frame75-101 (102-137)
Splash Shield12-17 (16-23)
Rear Axle Components
Axle Bearing Retainer Nuts72-87 (98-118)
Brake Drum Retaining Screws10-11 (14-15)
Drive Shaft Companion Flange36-43 (49-58)
ApplicationFt. Lbs. (N.m)
Brake Pipe Union10-16 (14-22)
Differential-To-Chassis Mount Nuts (4WD)49-72 (66-98)
Differential Carrier Bearings Cap Bolts
Front Differential27-38 (37-52)
Rear Differential54-79 (73-107)
Differential Carrier Bearings Lock Plate Bolt13-19 (18-26)
Differential Carrier-To-Housing Nuts17-20 (23-27)
Drive Pinion Lock Nut94-210 (127-285)
Drive Shaft Companion Flange Nuts36-43 (49-58)
Filler Plug29-40 (39-54)
Lower Ball Joint-To-Control Arm Bolts (4WD)75-101 (102-137)
Lower Ball Joint-To-Control Arm Nut (4WD)94-127 (128-172)
Rear Axle Bearing Retainer Nuts72-87 (98-118)
Rear Brake Drum Retaining Screws7-11 (10-15)
RFW Extension Housing Mount Nut (4WD)149-72 (66-98)
Ring Gear Retaining Bolts51-61 (69-83)
Splash Shield Bolts (4WD)12-17 (16-23)
Tie Rod End Nut (4WD)43-58 (59-78)
Wheel Lug Nuts65-87 (88-118)
ApplicationFt. Lbs. (N.m)
Differential Assembly
1991 Mazda MX-5 Miata
1990-91 DRIVE AXLES Differentials & Drive Axles - 929, B2200, B2600i, MX-5 Miata, MPV, Protege & RX-7
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1991 TORQUE SPECIFICATIONS (PROTEGE 4WD)
1990-91 TORQUE SPECIFICATIONS (RX7)
Differential Carrier Bearing Cap Bolts27-38 (37-52)
Differential Carrier Bearing Lock Tab14-19 (19-26)
Differential Carrier-to-Housing17-20 (23-27)
Differential Case
Front Mounts33-50 (45-68)
Rear Mounts80-97 (109-132)
Drive Pinion Lock Nut87-130 (118-176)
Filler Plug29-40 (39-54)
Ring Gear Retaining Bolts51-61 (69-83)
Suspension & Mounts
Drive Axle Inner CV Joint Nut40-47 (54-64)
Drive Shaft Companion Flange20-22 (27-30)
Front Mount33-50 (45-68)
Lateral Link46-55 (62-75)
Rear Mount80-97 (109-132)
Stabilizer Bar10-13 (14-18)
Trailing Link69-86 (94-117)
Wheel Lug Nuts65-87 (88-118)
ApplicationFt. Lbs. (N.m)
Differential Carrier Bearing Cap Bolts27-38 (37-52)
Differential Carrier Bearing Lock Plate Bolt13-19 (18-26)
Differential Carrier-To-Housing Nuts17-20 (23-27)
Differential Case
Front Mounts39-47 (53-63)
Rear Mounts68-86 (93-116)
Drive Axle Inner CV Joint Nut40-47 (54-64)
Drive Pinion Lock Nut87-130 (118-176)
Drive Shaft Companion Flange Nuts20-22 (27-30)
Filler Plug29-40 (39-54)
Lateral Link Bolts46-55 (62-75)
Ring Gear Retaining Bolts51-61 (69-83)
Stabilizer Bar Bolts31-43 (43-58)
Trailing Link Bolts68-93 (93-126)
Wheel Lug Nuts65-87 (88-118)
ApplicationFt. Lbs. (N.m)
Differential Carrier-to-Housing17-20 (23-27)
Differential Carrier
1991 Mazda MX-5 Miata
1990-91 DRIVE AXLES Differentials & Drive Axles - 929, B2200, B2600i, MX-5 Miata, MPV, Protege & RX-7
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1990-91 TORQUE SPECIFICATIONS (929)
Bearing Cap Bolts (1) 54-79 (73-107)
Differential Carrier Bearing Cap Bolts (2) 50-66 (73-107)
Differential Carrier Bearing Lock Tab13-19 (18-26)
Differential Case Front Hanger Nut65-77 (88-104)
Differential Case Rear Mounts54-69 (73-94)
Differential Ring Gear Bolts51-61 (69-83)
Drive Axle Inner CV Joint Nut40-47 (54-64)
Drive Pinion Lock Nut94-210 (127-285)
Drive Shaft Companion Flange36-43 (49-58)
Filler Plug29-40 (39-54)
Ring Gear Retaining Bolts51-61 (69-83)
Support Strut Mounting Bolt54-69 (73-94)
Wheel Lug Nuts65-87 (88-118)
(1)1990 Model.
(2)1991 Model.
ApplicationFt. Lbs. (N.m)
ABS Sensor-to-Hub Support Bolt12-17 (16-23)
Differential Carrier Bearing
Cap Bolts50-66 (68-90)
Lock Tabs13-18 (18-24)
Differential Carrier-to-Housing17-20 (23-27)
Differential Case
Front Hanger Nut69-86 (94-117)
Rear Mounts69-86 (94-117)
Drive Axle Inner CV Joint Nut40-47 (54-64)
Drive Pinion Lock Nut94-130 (127-176)
Drive Shaft Companion Flange Bolts36-43 (49-58)
Filler Plug29-40 (39-54)
Ring Gear Retaining Bolts51-61 (69-83)
Wheel Lug Nuts65-87 (88-118)
1991 Mazda MX-5 Miata
1990-91 DRIVE AXLES Differentials & Drive Axles - 929, B2200, B2600i, MX-5 Miata, MPV, Protege & RX-7
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Page 299 of 392
SUSPENSION - FRONT
1990-91 SUSPENSION Front
DESCRIPTION
An independent front suspension with MacPherson struts is used on all models except Miata. Miata uses a
double wishbone design with coil over shock absorbers. See Fig. 1
. Strut assemblies mount between steering
knuckle and upper fender panels. Strut assemblies consist of inner shock absorbers and coil springs surrounding
outside of strut tube housing.
The steering knuckle is connected to lower control arm and strut. Lower control arm pivots at crossmember and
is connected by ball joint to steering knuckle. All models are equipped with a stabilizer bar which attaches to
each lower control arm and frame. See Fig. 1
- Fig. 5 . Some models may also be equipped with Auto Adjust
Suspension (AAS). For more information on this system, see ELECTRONIC SUSPENSION article in the
SUSPENSION section.
ADJUSTMENTS & INSPECTION
WHEEL ALIGNMENT SPECIFICATIONS & PROCEDURES
See WHEEL ALIGNMENT SPECIFICATIONS AND PROCEDURES article in the WHEEL ALIGNMENT
section.
WHEEL BEARING
Miata, Protege & 323
Raise and support vehicle. Remove wheel assembly. Remove and wire aside brake caliper. Remove rotor.
Install a dial indicator against wheel hub and measure axial movement. Axial movement should be .002" (.05
mm) maximum. If specification is exceeded, check and adjust lock nut torque or replace bearing on Protege and
323 or hub and bearing assembly on Miata.
MPV & 929
Raise and support vehicle. Remove wheel assembly. Remove and wire aside brake caliper. Install a dial
indicator against wheel hub and measure axial movement. Maximum axial movement should be .002" (.05
mm). If specification is exceeded, check and adjust lock nut torque or replace bearing on MPV 4WD and 929 or
hub and bearing assembly on MPV 2WD.
RX7
1. Raise and support vehicle. Remove wheel assembly. Remove and wire aside brake caliper. Install a dial
indicator against hub and measure axial movement. Axial movement should be zero. If specification is
exceeded, adjust preload or replace wheel bearing.
2. To ad
just preload, remove grease cap, cotter pin and set cover. Loosen lock nut. Tighten to 14-22 ft. lbs.
1991 Mazda MX-5 Miata
SUSPENSION - FRONT 1990-91 SUSPENSION Front
1991 Mazda MX-5 Miata
SUSPENSION - FRONT 1990-91 SUSPENSION Front
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Page 307 of 392
Push out front bushing using a press and Remover (49-G030-627A). To remove rear bushing, install Bearing
Puller (49-0710-520) on bushing. DO NOT overtighten bearing puller nuts or lower arm will be distorted and
damaged. Press to push out rear bushing using Remover (49-G030-627A). To install both bushings, use
remover and Support Block (49-0823-146).
Installation (All Models)
To install, reverse removal procedure. Tighten lower control arm pivot bolts to specification with vehicle
resting on ground and suspension unloaded. See TORQUE SPECIFICATIONS
.
UPPER CONTROL ARM
Removal (Miata)
Raise and support vehicle. Remove wheel assembly. Remove engine splash shield. Remove ball joint pivot nut.
Use Puller (49-0118-850C) to separate ball joint from steering knuckle. Remove upper control arm pivot bolts.
Remove upper control arm.
Inspection
Check upper control arm for damage or cracks. Check bushings for deterioration and excessive wear. Check
ball joint for excessive wear. Examine dust boot for damage. Replace parts as necessary.
Bushing Replacement
Using a chisel, remove old bushing from control arm. Coat new bushing with grease. Press new bushing into
control arm.
Installation
To install, reverse removal procedure. Tighten upper control arm pivot bolts to specification with vehicle
resting on ground and suspension unloaded.
SHOCK ABSORBER
Removal (Miata)
Raise and support vehicle. Remove wheel assembly. Remove engine splash shield. Remove stabilizer link bolt.
Separate upper ball joint from steering knuckle. Loosen lower control arm pivot bolts. Remove shock absorber
upper mount nuts and lower bolt. Move lower control arm just enough to remove shock absorber. Be careful not
to damage brake line.
Disassembly
Clamp upper mount in vise. Loosen lock nut 2 turns only. Compress coil spring using coil spring compressor.
Remove lock nut and remainin
g components. Slowly release compressor tension.
1991 Mazda MX-5 Miata
SUSPENSION - FRONT 1990-91 SUSPENSION Front
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Page 341 of 392
REMOVAL & INSTALLATION
STEERING GEAR
Removal & Installation (Miata & MPV)
1. Disconnect negative battery cable. Raise and support front of vehicle. Remove front wheels. Remove
cotter pins and castle nuts from tie rod ends.
2. Using puller, remove tie rods from steering knuckles. Remove steering column intermediate shaft-to-
steering gear pinion shaft bolt. Mark reference lines on pressure pipe fittings.
3. Remove pressure and return hose connections from steering gear. Remove 2 steering bracket-to-frame
mounting through bolts. Remove steering gear and linkage with steering bracket attached from under the
vehicle.
4. To install, reverse removal procedure. Fill and bleed system. Tighten bolts to specification. See
TORQUE SPECIFICATIONS
table. Tighten steering gear-to-mounting bracket bolts (4) in the
following order: left front, right front, left rear, right rear.
Removal & Installation (MX-6 & 626)
1. Disconnect negative battery cable and power steering pressure switch connectors. Raise and support front
of vehicle. Remove front wheels.
2. Remove cotter pins and castle nuts from tie rod ends. Using puller, remove tie rods from steering
knuckles. Remove steerin
g column intermediate shaft-to-steering gear pinion shaft bolt.
Used Belt.35-.39 (8.9-10.0)
MPV
V6
New Belt.28-.30 (7.1-7.6)
Used Belt.30-.32 (7.6-8.1)
4-Cylinder
New Belt.26-.28 (6.6-7.1)
Used Belt.28-.31 (7.1-7.8)
MX-6 & 626
New Belt.31-.36 (7.8-9.1)
Used Belt.35-.43 (8.9-10.9)
RX7
New Belt.43-.51 (10.9-12.9)
Used Belt.55-.63 (14.0-16.0)
929
New Belt.28-.35 (7.1-8.9)
Used Belt.35-.43 (8.9-10.9)
(1)Belt deflection is measured at midpoint between idler pulley and pump, with 22 lbs. (10 kg.) of
pressure applied.
1991 Mazda MX-5 Miata
STEERING GEAR - POWER RACK & PINION 1991 STEERING Mazda - Power Rack & Pinion
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Page 342 of 392
3. Remove pressure and return hose connections from steering gear. Remove mud flap on driver's side.
Remove steering gear mounting bolts. Remove steering gear through wheelwell on driver's side.
4. To install, reverse removal procedure. Fill and bleed system. Tighten bolts to specification. See
TORQUE SPECIFICATIONS
table.
Removal & Installation (Protege & 323)
1. Disconnect negative battery cable. Raise and support front of vehicle. Remove front wheels. Remove
engine undercover. Remove cotter pins and castle nuts from tie rod ends.
2. Using puller, remove tie rods from steering knuckles. Remove steering column intermediate shaft-to-
steering gear pinion shaft bolt. Remove pressure and return hose connections from steering gear box.
3. Remove all accessible steering gear mounting bracket upper nuts and lower bolts. On Protege, support
drive train from above. Loosen stabilizer bar left mounting bracket and remove engine mount
crossmember.
4. Remove transmission control cable clip. Remove transfer case mount nuts. Lower engine gradually until
rear engine mount bolts can be removed. Remove lower left steering gear mounting bolt from between
transaxle and transfer case.
5. On all models, remove steering gear. To install, reverse removal procedure. Fill and bleed system.
Tighten bolts to specification. See TORQUE SPECIFICATIONS
table.
Removal & Installation (RX7)
1. Remove battery. Drain cooling system. Remove fan shroud and radiator. Raise and support front of
vehicle. Remove front wheels and engine undercover.
2. Remove control links and stabilizer bar. Remove cotter pins and castle nuts from tie rod ends. Remove tie
rods from steering knuckles with puller.
3. Remove steering column intermediate shaft-to-steering gear pinion shaft bolt. Remove pressure and
return hose connections from steering gear box.
4. Remove steering gear mounting bolts. Lower steering gear brackets, steering gear and linkage from
vehicle as an assembly.
5. To install, reverse removal procedure. Fill and bleed system. Tighten bolts to specification. See
TORQUE SPECIFICATIONS
table.
Removal & Installation (929)
1. Disconnect negative battery cable. Raise and support front of vehicle. Remove front wheels. Remove
engine undercover. Disconnect pressure and return hose connections in front of steering gear.
2. Drain fluid. Disconnect return hose fitting to control valve. Remove starter for access to control valve.
Disconnect control valve and pressure switch connectors. Remove control valve. Remove cotter pins and
castle nuts from tie rod ends.
3. Using puller, remove tie rods from steering knuckles. Remove steering column intermediate shaft-to-
steering gear pinion shaft bolt. Remove steering gear mounting bolts. Remove steering gear from bottom
of vehicle.
4. To install, reverse removal procedure. Tighten bolts to specification. See TORQUE SPECIFICATIONS
1991 Mazda MX-5 Miata
STEERING GEAR - POWER RACK & PINION 1991 STEERING Mazda - Power Rack & Pinion
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