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LUBRICATION
CAPACITY
POWER STEERING FLUID CAPACITY
FLUID TYPE
Dexron-II or M-III are recommended for all vehicles.
FLUID LEVEL CHECK
Check fluid level with engine off. Remove fluid level gauge on oil pump or reservoir. Check fluid level. Fluid
should be between "L" and "H" marks on level gauge dipstick. If fluid level is low, fill through gauge tube.
Recheck fluid level. DO NOT overfill.
HYDRAULIC FLUID BLEEDING
1. Raise and support front of vehicle. With ignition off, turn steering wheel lock-to-lock several times. Add
fluid as necessary. Repeat procedure until fluid level no longer decreases.
2. Start engine and let idle. Turn steering wheel lock-to-lock 5 times. Check fluid level. Add fluid as
necessary. Continue procedure until fluid is clear of air bubbles and does not decrease in level.
ADJUSTMENTS
POWER STEERING BELT ADJUSTMENT
POWER STEERING BELT DEFLECTION
(1)
(1)Specifications are measured at 1000-1500 RPM, with fluid temperature at 122-140°F (50-60°C).
ApplicationQts. (L)
Miata, MPV & 929.95 (.90)
MX-6 & 626
Electronc Controlled Power Steering (ECPS)1.06 (1.0)
Engine Speed (Sensing) Power Steering (ESPS).95 (.90)
Protege & 323.63 (.60)
RX7.85 (.80)
NOTE: On-vehicle adjustment procedures are not available from manufacturer.
ApplicationIn. (mm)
Miata, Protege & 323
New Belt.31-.35 (7.8-8.9)
1991 Mazda MX-5 Miata
STEERING GEAR - POWER RACK & PINION 1991 STEERING Mazda - Power Rack & Pinion
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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 343 of 392
table. Bleed air from system. Check fluid level. Check for leaks. Adjust alignment (if necessary).
POWER STEERING PUMP
Removal & Installation
1. Raise and support front of vehicle. On MX-6 and 626, remove right wheel and splash shield. On all
models remove belt, alternator and hydraulic lines from pump.
2. On Protege and 323, disconnect air cleaner duct and pressure switch. On all models, cap lines to prevent
contamination. Remove bracket-to-pump bolts.
3. To install, reverse removal procedure. Adjust belt tension. See POWER STEERING BELT
DEFLECTION TABLE under ADJUSTMENTS. Bleed air from system. Check for leaks.
OVERHAUL
STEERING GEAR
NOTE: See Fig. 2
-8 for exploded views of rack and pinion steering gears.
1991 Mazda MX-5 Miata
STEERING GEAR - POWER RACK & PINION 1991 STEERING Mazda - Power Rack & Pinion
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MAZDA
1.6L & 1.8L 4-Cylinder - 1986-95
MANUFACTURER'S SUGGESTED SCHEDULED MAINTENANCE
For 1992 and earlier model years, the manufacturer recommends the belt be replaced every 60,000 miles. For
1993-95 model years, the manufacturer recommends the belt be replaced at 60,000 mile intervals for vehicles
sold outside of California. For vehicles sold in California, inspect timing belt at 60,000 and 90,000 miles, and
replace timing belt at 105,000 miles.
REMOVAL & INSTALLATION
TIMING BELT
Removal (MX-3, Protege & 323)
1. Disconnect negative battery cable. Raise and support vehicle. Remove right front wheel. Remove right
splash panels.
2. Remove drive belts and water pump pulley. See Fig. 1
, Fig. 2 or Fig. 3 . Align crankshaft pulley timing
mark with cylinder No. 1 at TDC of compression stroke. Hold crankshaft stationary, and remove
crankshaft pulley bolts and pulley. Remove crankshaft pulley hub bolt and hub.
3. Remove timing belt covers. If timing belt is to be reused, mark timing belt rotation direction. Align
timing marks on camshaft sprocket(s). See Fig. 4
(SOHC) or Fig. 5 (DOHC) . Loosen timing belt
tensioner lock bolt. Temporarily secure tensioner away from belt with spring fully expanded. Remove
timin
g belt.
1991 Mazda MX-5 Miata
MAZDA 1.6L & 1.8L 4-Cylinder - 1986-95
1991 Mazda MX-5 Miata
MAZDA 1.6L & 1.8L 4-Cylinder - 1986-95
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Page 383 of 392
Fig. 1: Exploded View Of Timing Belt & Components (1989 SOHC)
Courtesy of MAZDA MOTORS CORP.
1991 Mazda MX-5 Miata
MAZDA 1.6L & 1.8L 4-Cylinder - 1986-95
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Fig. 2: Exploded View Of Timing Belt & Components (1990 & Later SOHC)
Courtesy of MAZDA MOTORS CORP.
1991 Mazda MX-5 Miata
MAZDA 1.6L & 1.8L 4-Cylinder - 1986-95
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Fig. 3: Exploded View Of Timing Belt & Components (DOHC Except MX-5 Miata)
Courtesy of MAZDA MOTORS CORP.
1991 Mazda MX-5 Miata
MAZDA 1.6L & 1.8L 4-Cylinder - 1986-95
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Page 387 of 392

Fig. 5: Aligning Camshaft Timing Marks (DOHC 1.8L Engines)
Courtesy of MAZDA MOTORS CORP.
Removal (MX-5 Miata - DOHC)
1. Disconnect negative battery cable. Drain cooling system. Remove radiator hose and by-pass hoses from
thermostat housing. Remove air cleaner intake duct assembly from throttle body to air cleaner filter
housing. Remove splash shield.
2. Remove drive belt(s) and water pump pulley. See Fig. 6
. Align crankshaft pulley timing mark with
cylinder No. 1 at TDC of compression stroke. Hold crankshaft pulley stationary. Remove crankshaft
pulley bolts. Remove pulley. Remove crankshaft pulley hub bolt and hub.
3. Remove cylinder head cover. Remove upper, center and lower timing belt cover. If timing belt is to be
reused, mark timing belt rotation direction. Ensure timing marks on camshaft sprockets are aligned. See
Fig. 7
. Loosen timing belt tensioner lock bolt, and move tensioner away from belt with spring fully
expanded. Remove timin
g belt.
1991 Mazda MX-5 Miata
MAZDA 1.6L & 1.8L 4-Cylinder - 1986-95
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