Manufacturer:
Mazda Motor Corporation
Engine Family:
BP-DOHC (Mazda B-series)
Model Variants:
Naturally aspirated and turbocharged (e.g., BP-T, BP Turbo)
Production Years:
1989-2005 (varies by market and model)
Covered Models:
All Mazda models equipped with BP-DOHC, including Miata, Protegé, 323, Familia, and others
Trim Levels:
All trim levels for covered models
Displacement:
1.8 L (1,839 cc)
Target Audience:
Owners, mechanics, and technicians
Competitive Advantage:
Comprehensive coverage of all BP-DOHC variants, detailed step-by-step procedures, and extensive illustrations
Key Features:
Inline 4-cylinder, DOHC valvetrain, electronic fuel injection, robust engineering, reliable performance
Applications:
Capable powerplant for various applications, from economy cars to sports models
Engine Mechanical:
Cylinder head, block, pistons, crankshaft, valvetrain, timing belt
Engine Lubrication:
Oil pump, oil pan, oil cooler, filters
Engine Cooling:
Water pump, radiator, thermostat, hoses
Fuel System:
Electronic fuel injection, fuel pump, injectors, pressure regulator, fuel tank
Ignition System:
Distributor or coil-on-plug, spark plugs, wires
Exhaust System:
Manifold, downpipe, catalytic converter, muffler
Emission Control:
EGR, PCV, EVAP, O2 sensors
Transmission:
Manual and automatic transaxle (as equipped)
Clutch:
Clutch assembly, hydraulics
Driveline:
Axles, differential, driveshaft
Suspension:
Front and rear suspension components
Steering:
Manual and power steering systems
Brakes:
Front and rear brakes, ABS (if equipped)
Electrical:
Charging, starting, lighting, instruments, wiring diagrams
HVAC:
Heater, air conditioning, ventilation
Body:
Interior and exterior trim, doors, windows, seats
Procedures Included:
Step-by-step repair, maintenance, and troubleshooting procedures
Technical Depth:
Detailed specifications, tightening torques, fluid capacities, diagnostic codes
Parts Information:
Component identification and specifications; OEM part numbers may be referenced
Illustrations:
Hundreds of illustrations, diagrams, and photos
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Configuration:
Inline 4-cylinder
Valvetrain:
DOHC, 16 valves
Bore x Stroke:
83.0 mm x 85.0 mm
Compression Ratio:
9.0:1 (naturally aspirated), 8.2:1 (turbocharged)
Fuel System:
Electronic fuel injection
Horsepower:
105-131 hp (naturally aspirated), 150-180 hp (turbocharged, varies by market)
Torque:
110-135 lb-ft (naturally aspirated), 150-160 lb-ft (turbocharged)
Wheelbase:
N/A - varies by model (e.g., Miata: 89.2 in, Protegé: 102.2 in)
Length:
N/A - varies by model
Width:
N/A - varies by model
Height:
N/A - varies by model
Curb Weight:
N/A - varies by model (e.g., Miata: ~2,200 lb, Protegé: ~2,500 lb)
Service Intervals:
Refer to manual for specific intervals; typically every 5,000-7,500 miles
Engine Oil:
5W-30 or 10W-30 (API SG or higher)
Coolant:
Ethylene glycol-based, 50/50 mix
Transmission Fluid:
Manual: 75W-90 GL-4; Automatic: Mazda ATF M-III or equivalent
Known Issues:
Timing belt wear, idle issues, oil leaks, turbocharger wear (turbo models)
Common Wear Items:
Timing belt, water pump, clutch, spark plugs, ignition wires
