engine MAZDA MX-5 1994 Workshop Manual

HOW TO USE THIS MANUAL Example: SHOWS EXPENDABLE PARTS SHOWS APPLICATION POINT OF OIL, ETC SHOWS RELATED PAGE FOR. SERVICE SELECTIVE 1. 8011 2. Lock plate 3. Bearing cup t. Adjusting screw 5. Bearing outer race 5. Locknul 16. Bearing inner race 18. drive pinion 1. Washer Removal ..................... .. .... page M-2' SHOWS TIGHTENING TORQUE SPECIFICATIONS *2 SHOWS TIGHTENING TORQUE UNIT -SHOWS VISUAL INSPECTION INFORMATION *1: The numbers (0, etc.) refer to part identification and servicing procedures. *2: Units are in N.m {kgf.m, ftlbf} unless otherwise specified. $ L SYMBOLS There are six symbols indicating oil, grease, and sealant. These symbols show the points of applying such materials during service. Symbol I Meaning ~pp~y oil Apply brake fluid I Apply automatic transmission fluid Apply grease Apply sealant Kind 0 New engine oil or gear oil as appropriate Apply petroleum jelly Appropriate grease Appropriate sealant Appropriate petroleum jelly Gartner Banana

IDENTIFICATION NUMBER LOCATIONS/UNITS IDENTIFICATION NUMBER LOCATIONS VEHICLE IDENTIFICATION NUMBER (VIN) AUTOMATIC TRANSMISSION MODEL AND NUMBER ENGINE MODEL AND NUMBER UNITS Electrical current ............ A (ampere) Electric potential ............ V (volt) Electric power. .............. W (watt) Length ..................... mm (millimeter) in (inches) Negative pressure ........... kPa (kilo Pascal) mmHg (millimeter of mercury) inHg (inches of mercury) Positive pressure ............ kPa (kilo Pascal) kgf/cm2 (kilogram force per square centimeter) psi (pounds per square inch) Resistance ................. SZ (ohm) Torque ..................... N-m (Newton meter) kgfm (kilogram force per meter) kgfzm (kilogram force per centimeter) ft-lbf (foot pounds) in-lbf (inch pounds) Volume .................... L (liter) US qt (U.S. quart) Imp qt (Imperial quart) Gartner Banana

ABBREVIATIONS 4BDC .... 4BS ...... 4CC ...... 4T ........ 4TDC ..... 4TF ...... 4TS ...... 3AC ...... 3BDC .... 3TDC ..... :ID ....... 2U ....... IOHC .... IRL ...... ITM ...... IC-AT .... iGRA .... EGRV .... ELR ...... EPC ...... ESPS ..... ETS ...... EX ....... FMEM .... HFC ...... HLA ...... H U ....... IC ........ IG ........ IN ........ INT ....... LFC ...... LH ....... LSD ...... M ........ MAF RTN . MT ....... PCTS ..... PCV ...... PIP ....... PRC ...... PIS ....... PMI ...... PWR GND RH ....... RPM ...... RTS ...... SIG RTN . . SLS ...... ... SPOUT S R ....... SST ...... ST ....... SW ....... TDC ...... TNS ...... TRS ...... VPWR .... WSS ..... WTS...... After bottom dead center Antilock brake system Accessory Automatic transmission After top dead center Automatic transmission fluid Ambient temperature sensor Bypass air control Before bottom dead center Before top dead center Cylinder identification display Control unit Double overhead camshaft Daytime running light Diagnostic test mode Electronically controlled automatic transmission EGR air solenoid valve EGR vacuum solenoid valve Emergency locking retractor Electronic pressure control Engine speed sensing power steering Evaporator temperature sensor Exhaust Failure mode effects management High fan control Hydraulic lash adjuster Hydraulic unit Integrated circuit Ignition Intake Intermittent Low fan control Left hand Limited slip differential Motor Mass airflow return Manual transmission Passenger compartment temperature sensor Positive crankcase ventilation Profile ignition pickup Pressure regulator control Power steering Power window Power ground Right hand Revolutions per minute Reduce torque signal Signal return Slip lockup signal Spark output Sensor rotor Special service tool Start Switch Top dead center Tail number side (taillights, license plate lights and side marker lights) Torque reduced signal Vehicle power Wheel speed sensor Water temperature sensor Gartner Banana

SAE STANDARDS SAE STANDARDS In accordance with new regulations, SAE (Society of Automotive Engineers) standard names and abbreviations are now used in this manual. The table below lists the names and abbreviations that have 4 been used in Mazda manuals up to now and their SAE equivalents. 46UGIX-047 Engine and Emission Systems Accelerator Pedal Air Cleaner Housing I Mixture Control Solenoid I F2 Carburetor ] Abbreviation AP ACH MCS VAF M AF Abbreviation - - - - - Volume Airflow Sensor I I Name Accelerator Pedal Air Cleaner AirlFuel (NF) Solenoid Valve Airflow Meter Airflow Sensor I Mass Airflow Sensor I I Alternator I I - - - -~ I Barometric Absolute Pressure I I Sensor I I Alternator Atmospheric Pressure Sensor I - 1 Carburetor CARB 1 Catalytic Converter OC ALT BAR0 Carburetor 1 Oxidation Catalvst I - - - - - I Direct Ignition I DL1 EG I 1 Electronic Gasoline lniection Svstem I CIS Three Way Catalyst Warm Up Three Way Catalyst Fuel Pump Relay Coolant Fan Control Crankshaft Position Sensor Data Link Connector Circuit Opening Relay Cooling Fan Control Crank Angle Sensor Diaanosis Connector Distributorless Ignition I Continuous Fuel lniection Svstem I 1 #1 #2 FPR C FC CPS DLC I Previous Standard SAE Standard Name I Remark - ( Electronic Spark Ignition EGR Gas Sensor EGR Position Sensor EGR Position Switch El Electronic Ignition 1 #3 EGR Function Control I - I EGR Modulator Solenoid I EGRC 4 ECU I Evaporative Emission Control Svstem I EVAP - - I -,--- I - I Exhaust Gas Recirculation System I EGR Engine Control Unit PCM PCME Engine Modification Ennine Speed EM RPM - - - - - Feedback System Flexible Fuel - I Intercooler Powertrain Control Module I #5 I EGR Function Sensor CLS FF Fuel Pump IC Regulator Intake Air Thermosensor CAC I Powertrain Control Module (Engine) I #4 FP VR IATS - I ISC Solenoid Valve I IACV Engine Modification I Engine Speed - Fuel Evaporative System I Exhaust Gas Recirculation 1 System name 1 Closed Loop System I Flexible Fuel Knock Sensor I I - ( Knock Sensor I KS I Malfunction Indicator Light I I - I Malfunction Indicator Liaht MIL Multiport Fuel Injection Oxidation Catalyst - 1 Multiport Fuel Injection #1: Directy connected to exhaust manifold #2: In some models, there is a "Fuel Pump Relay" that controls pump speed. That relay is now called the 'Fuel Pump Relay (Speed)". #3: Controlled by the PCME (PCM) 4 #4: EGR valve controller device name #5: Device that controls engine and powertrain MFI - 1 Oxidizina Converter OC Gartner Banana

SAE STANDARDS Engine and Emission Systems (cont'd) I Previous Standard I SAE Standard b I - Abbreviation ( Name I Oxvaen Sensor - .w- - I I ." I 02s I Oxygen Sensor I - PTC Reed Valve Relief 1 Solenoid Valve Secondary Air lnjection System - Seauential Fuel lniection SMFl L - Service Code(s) DTC - Spark Ignition Dl - Supercharger SC Abbreviation I Name Open Loop Positive Temperature Coefficient Hnatar Secondarv Air Pulse Valve Remark . .--.-. Pressure Sensor Secondary Air Bypass valve Pulsed Secondarv Air lniection H02S I Heated Oxvaen Sensor I With heater OL EFE Secondary Air lnjection Sequential Multipoint Fuel lnjection Diagnostic Trouble Code(s) Open Loop Early Fuel Evaporation MAP MVS Distributor lgnition Supercharger Manifold Absolute Pressure Sensor Manifold Vacuum Sensor I - - - - - - Checks vacuum only Pulsed iniection - Switching Solenoid Valve Test Mode(s) Three Way Catalyst Throttle Body Throttle Sensor Turbocharaer .. Maifold Differential Pressure Manifold Vacuum Zone Switch , - I - 1 VAC I MDP 1-1 Water Thermosensor L - I Vacuum Switch I ECTS I Engine Coolant Temperature Sensor I SASV DTM TWC TB TPS TC MVZS #6: Supplies air to three way catalyst #7: Diagnostic trouble codes depend on the test mode - Secondary Air Switching Valve Diagnostic Test Mode(s) Three Way Catalyst Throttle Body Throttle Position Sensor Turbocharaer Transmission (Transaxle) and Steering System L - - Previous Standard I I I I Abbreviation - - - SAE Standard Fully Open Inhibitor Switch - I Lock-up Position - - Name Clutch Position EC-AT Control Unit Fullv Closed Abbreviation CPP PCMT CTP TCC I Torque Converter Clutch - - - WOT PNS Output Signal(s) Overdrive I Name Clutch Pedal Position Powertrain Control Module (Transaxle) Powertrain Control Module (Transmission) Closed Throttle Position Wide Open Throttle ParWNeutral Switch Power Steering Pressure Switch Pulse Generator Vehicle Speed Sensor - 1 3rd Gear Remark FF FR PTCS 4GR 3GR I Third Gear Powertrain Control Signal(@ Fourth Gear SPS VSPG VSS Steering Pressure Sensor Vehicle Speed Pulse Generator Vehicle Speed Sensor Gartner Banana

ELECTRICAL PARTS GI BATTERY CABLE Before disconnecting connectors or removing electrical parts, disconnect the negative battery cable. CONNECTORS Data Link Connector Insert the probe into the service hole when connecting a jumper wire to the data link connector. Caution Inserting a jumper wire probe into the data link connector terminal may damage the terminal. Power Connector The special power connector in the engine compartment (Blue: 1 -pin) supplies battery positive voltage for exter- nally powered test equipment. Caution Do not ground the power connector terminal; the 20A wiper fuse will be burned. Disconnecting Connectors When disconnecting two connectors, grasp the connec- tors, not the wires. Connectors can be disconnected by pressing or pulling the lock lever as shown. Gartner Banana

PRE-DELIVERY INSPECTION PRE-DELIVERY INSPECTION PRE-DELIVERY INSPECTION TABLE The following items may be done at any time prior to delivery to your customer. INSPECT and ADJUST, if necessary, the following items to specification: 0 Glass, exterior bright metal and paint for damage 0 Convertible top and detachable hardtop (if equipped) for damage 0 Wheel lug nuts and locks 89-117 N.m (9-1 2 kgf.m, 66-86 ft4bf) 0 All weatherstrips for damage or detachment Operation of hood release and lock Operation of fuel lid 0 Door operation and alignment Headlight aiming INSTALL the following parts: Wheel caps (if equipped) 0 Outside mirror(s) 0 Mast antenna (if equipped) UNDER HOOD-ENGINE OFF INSPECT and ADJUST, if necessary, the following items to specification : Fuel, coolant, and hydraulic lines, fittings, connections, and components for leaks Engine oil level 0 Power steering fluid level (if equipped) Brake and clutch master cylinder fluid level 0 Windshield washer reservoir fluid level 0 Radiator coolant level and specific gravity 0 Tightness of battery terminals pKiq INSTALL the following parts: CHECK operation of the following items: 0 Seat controls (sliding and reclining) 0 Door locks 0 Seat belts and warning system 0 Air bag system using indicator light (Refer to section T) Ignition switch and steering lock 0 Starter interlock switch (clutch pedal) All lights, including warning, and indicator lights 0 Audible warning system 0 Horn, wipers, and washers Audio system 0 Cigarette lighter Power windows (if equipped) 0 Power outside mirrors (if equipped) 0 Heater, defroster, and air conditioner at all mode selections (if equipped) CHECK the following items: Presence of spare fuses 0 Upholstery and interior finish CHECK and ADJUST, if necessary, the following items: 0 Pedal height and free play of brake and clutch pedals I Pedal height mm {in} I Ft: $iy I Clutch pedal {6.89--7.28) (with carpet) Parking brake 7-9 notchesil96 N (20 kgf, 44 Ibf) 0.63.1 (0.024. 12) Brake pedal RUNNING AT OPERATING TEMPERATURE CHECK the following items: 0 Automatic transmission oil level 171-181 (6.73--7.13) (with carpet) I ON HOIST I 4--7 {0.16-0.28} CHECK the following items: 0 Underside fuel, coolant, and hydraulic lines, fittings, con- nections, and components for leaks 4 Tires for cuts or bruises 0 Steering linkage, suspension, exhaust system, and all underside hardware for looseness or damage Manual transmission oil level Differential oil level I ROAD TEST I CHECK the following items: Brake operation Clutch operation 0 Steering control 0 Operation of meters and gauges Squeaks, rattles and unusual noises 0 Overall engine performance Seat belt emergency locking retractors 0 Cruise control system (if equipped) I AFTER ROAD TEST I CHECK for necessary owner information materials, tools and spare tire in vehicle The following items must be done just before the delivery to your customer. 0 Load test battery and charge if necessary -1 Install fuses for accessories Adjust tire pressure to specification Load test fesuk 0 Remove seat and floor mat protective covers (Refer to Door Label) 0 Vacuum and clean interior of vehicle Clean outside of vehicle Inspect installation of option parts with invoice 45UOAX-002 Gartner Banana

Schedule 2 (Unique driving conditions) (AT) Maintenance interval Maintenance item ENGINE Engine oil I R I R I R I R I R I R I R I R I R I R I R I R Engine oil filter Drive belts Number of months or kilometers {miles}, whichever comes first eoilpancapacity: 4.0 L {4.2 US qt, 3.5 Imp qt} Engine oil (Puerto Rico) I I IGNITION SYSTEM Service data and inspection point Months Kilometers (x 1,m) Miles (x 1,000) D-5 Replace every 4,800 km (3,000 miles) or every 3 months I I I I I I I I - - Engine timing belt (California) Spark plugs Page - - Air cleaner element I I FUEL SYSTEM 4 8 5 I F-99 8-1 2 -. . . '21nspect at 96,000 km {60,000 miles}, and again at 144,000 km {90,000 miles) Replace every 168,000 km (1 05,000 miles) - - R*' - 1'1 l Oilfiltercapacity: 0.15 L (0.16 US qt, 0.13 Imp qt} l Cracks or damage l Tension I R 1 Ie2 1 Engine timing belt ~ --- - - l Plug gap: 1 .&I -1 mm (0.040-4.043 in) l Recommended dark ~luas: 8 16 10 D-6 B-6 Replace every 96,000 km (60,000 miles) Idle speed Fuel filter Fuel lines and hoses NGK , BKRGE-11 BKR5E-I 1 12 24 15 IRI I*2 lt2 l Idle speed MT: 800-900 rpm (Neutral) 1 F-76 AT: 75M0 rpm (P range) 16 32 20 I!*'2 1 20 40 25 24 48 30 - Fittings, connections and com~onents for leaks 36 72 45 F-113 F-1 07 Fuel hoses (California) Hose and tube for emission 28 56 35 Cooling system Engine coolant 32 64 40 COOLING SYSTEM Replace every 168,000 km {I 05,000 miles} 1 1*2 48 96 60 40 80 50 I R 44 88 55 l Fittings, connections and components for leaks Fittings and connections F-1 07 - I R l Hoses for cracks or wear l Coolant level - E4 E-5 Gartner Banana

SCHEDULED MAINTENANCE (CANADA) SCHEDULE Chart symbols: I : Inspect, and repair, clean, or replace if necessary (Inspect, and replace if necessa ry... Air cleaner element only) R : Replace L : Lubricate Remarks: After 60 months or 96,000 km (60,000 miles}, continue to follow the described maintenance at the recommended intervals. '1 Replacement of the timing belt is required every 96,000 km, (60,000 miles}. Failure to replace this belt may result in damage to the engine. *2 This maintenance is recommended by Mazda. However, it is not necessary for emission warranty coverage or manufacturer recall liability. Gartner Banana

Schedule interval Maintenance ENGINE Number of months or kilometers {miles), whichever comes first I -. Months 5 10 15 20 25 30 35 40 45 50 55 60 Kilometers 8 16 24 32 40 48 56 64 72 80 88 96 - Service data and inspection point 1~1.000~ Page Spark plugs FUEL SYSTEM -- Plug gap: 1 .GI .l mm {0.04M.043 in) l Recommended spark plugs: D-5 D-6 B-6 F-99 8-1 2 IGNITION SYSTEM R I I Engine oil Engine oil filter Drive belts Air cleaner element Engine timing belt 'l R I R I F-76 F-1 1 3 F-107 F-I30 - Idle speed Fuel filter Fuel lines and hoses PCV valve'2 Emission hoses and tubes R I COOLING SYSTEM I Cooling system Engine coolant R I R I I E4 E-5 E4 I R I R I R I R I*z I l Hoses for cracks or wear l Leaks - Level and strength I R RR I R R R I I R I OilPancapacity: 4.0 L (4.2 US qt, 3.5 Imp qt) 0 Oil filter capacity: 0.15L(0.16USqt,0.13Impqt) 'Cracksordamage 0 Tension - - R I I I I I R I l ldle speed MT: 800-900 rpm (Neutral) AT 750-850 rpm (P range) - l Fittings, connections and components for leaks Operation Fittings and connections I I R I I I I I I I I I R I Gartner Banana