Mazda RX7. Manual - part 64

STEERING GEAR - MANUAL

Article Text (p. 5)

1983 Mazda RX7

For www.iluvmyrx7.com

Sunday, August 26, 2001 08:20PM

torque wrench to steering shaft upper end. If not to specifications,
adjust as necessary. See Final Worm Bearing Preload table. Fill gear
housing with lubricant (API GL-4 SAE 90).

FINAL WORM BEARING PRELOAD TABLE

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Application INCH Lbs. (N.m)

B2000 & B2200 .......................... 5.2-7.8 (.57-.86)
RX7 .................................... 1.3-2.7 (.14-.30)
GLC Wagon .............................. 5.2-10.4 (.6-1.2)

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TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS TABLE

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Application Ft. Lbs. (N.m)

Pitman Arm-to-Sector Shaft
GLC Wagon, B2000 & B2200 ................ 58-87 (80-120)
RX7 .................................. 108-130 (150-180)
Tie Rod Lock Nut
B2000 & B2200 ............................ 22-33 (30-45)
GLC Wagon & RX7 .......................... 51-58 (70-80)

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END OF ARTICLE

SUSPENSION - FRONT

Article Text

1983 Mazda RX7

For www.iluvmyrx7.com

Sunday, August 26, 2001 08:20PM

ARTICLE BEGINNING

1983 SUSPENSION
Mazda - Suspension - Front

RX7

DESCRIPTION

Mazda uses independent front suspension with MacPherson type
struts. Strut assemblies mount between lower control arms 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 arms pivot at crossmember and are connected by
ball joints to steering knuckle. Some models are equipped with a
stabilizer bar. Strut rods are installed to maintain alignment and
stability.

ADJUSTMENT

WHEEL ALIGNMENT SPECIFICATIONS & PROCEDURES

See WHEEL ALIGNMENT SPECIFICATIONS & PROCEDURES in WHEEL
ALIGNMENT section.

WHEEL BEARING ADJUSTMENT

1) Raise and support vehicle. Remove brake caliper and hang
out of the way. Remove brake caliper adapter. Remove grease cap,
cotter pin and nut lock. Tighten spindle nut to 18-22 ft. lbs.
(24-30 N.m).
2) Turn hub a few times to seat bearings. Loosen nut.
Install one wheel bolt and attach spring scale. Gradually tighten
spindle nut until a preload reading of 1.0-1.4 lbs. (.45-.64 kg) is
obtained.

BALL JOINT CHECKING

1) Disconnect strut assembly and tie rod end from steering
knuckle arm. Check ball joint dust boot for cracks or other damage.
Rotate ball joint stud several times to settle ball joint.
2) Attach spring scale to tie rod hole. Support knuckle with
finger and measure torque required to turn ball joint. If scale
reading is less than 1 lbs. (0.5 kg), replace ball joint and lower
control arm as an assembly.

REMOVAL & INSTALLATION

WHEEL BEARING

SUSPENSION - FRONT

Article Text (p. 2)

1983 Mazda RX7

For www.iluvmyrx7.com

Sunday, August 26, 2001 08:20PM

Removal
1) Raise and support vehicle. Remove wheel assembly. Remove
brake caliper and hang out of the way. Remove brake caliper adapter.
Remove grease cap, cotter pin, nut lock and spindle nut.
2) Remove washer and outer wheel bearing. Remove hub/rotor
assembly. Remove grease seal and inner wheel bearing. Remove wheel
bearing outer races, if required.

Installation
To install, reverse removal procedures. Adjust wheel
bearings. See WHEEL BEARING ADJUSTMENT in this article.

LOWER CONTROL ARM

Removal
Raise and support vehicle. Remove wheel assembly. Remove
bolts attaching steering knuckle arm to strut assembly. Disconnect tie
rod end. Disconnect stabilizer bar. Disconnect strut rod on.
Remove steering knuckle arm. Remove lower control arm pivot bolt and
remove lower control arm.

Fig. 1: Front Suspension

Installation
To install, reverse removal procedure. Tighten lower control
arm pivot bolt to specified torque with vehicle resting on ground.

STRUT ASSEMBLY

Removal

NOTE: Note position of triangle on top of strut assembly before
removing strut assembly on.

SUSPENSION - FRONT

Article Text (p. 3)

1983 Mazda RX7

For www.iluvmyrx7.com

Sunday, August 26, 2001 08:20PM

1) Raise and support vehicle. Remove wheel assembly. Remove
brake caliper and hang out of the way. Remove grease cap, cotter pin,
nut lock and spindle nut. Remove washer and outer wheel bearing.
Remove hub/rotor assembly.
2) Remove backing plate. Disconnect brake line from strut
assembly. Remove bolts attaching steering knuckle arm to strut
assembly. Remove nuts attaching strut assembly and remove strut.

Disassembly
1) Clamp strut in vise. Compress coil spring. Remove cap,
lock nut and washer from top of piston rod. Remove strut assembly
mount, thrust bearing and spring seat. Remove coil spring, dust boot
and damper.
2) Remove cap nut and seal. Pry "O" ring from piston guide
rod. Pull piston rod and pressure tube assembly out of strut tube.
Remove strut from vise and drain fluid, if used.

NOTE: Do not remove piston rod, guide or base valve from pressure
tube. Service as a complete assembly only.

Inspection
Check strut tube for cracks or damage. Check rubber parts for
deterioration or damage. Inspect coil spring for signs of fatigue or
damage. Replace parts as needed.

Reassembly
1) Clamp strut in vise. Insert pressure tube and piston rod
assembly into strut tube. Fill strut tube with shock absorber fluid,
if used. See STRUT RESERVOIR VOLUME table in this article.
2) Fit pilot (49 0259 590) over threads of piston rod. Apply
grease to lip of oil seal and insert cap nut through pilot onto piston
rod. Tighten cap nut and pull out piston rod. Seat piston and torque
cap nut. Install coil spring and remaining hardware in reverse order
of disassembly.

Installation
1) To install, reverse removal procedures. Place triangle in
its original position. Adjust wheel bearings. See WHEEL BEARING
ADJUSTMENT in this article. Measure the distance between level ground
and headlights on.
2) The difference between headlights should not exceed 0.59"
(15mm). If height is not within specifications, adjust the difference
by inserting adjusting plates between mount and front suspension
tower. Do not use more than two adjusting plates on one side.

STRUT RESERVOIR VOLUME TABLE

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Application Ounces (cc)

RX7 ........................................... 7.61 (225)

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