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HOMESERVICE MANUALSMAZDA1993B2200 BASE, 2D PICKUP EXTRA CAB, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGPRELIMINARY INSPECTION & ADJUSTMENTSMECHANICAL INSPECTIONCOMPRESSION
1993 Mazda B2200 Base, 2D Pickup Extra Cab, Automatic

Mechanical Inspection: Compression

1993 Mazda B2200 Base, 2D Pickup Extra Cab, AutomaticSECTION Compression

Check engine mechanical condition with a compression gauge, vacuum gauge, or an engine analyzer. See engine analyzer manual for specific instructions.

WARNING: DO NOT use ignition switch during compression tests on fuel injected vehicles. Use a remote starter to crank engine. Fuel injectors on many models are triggered by ignition switch during cranking mode, which can create a fire hazard or contaminate the engine's oiling system.
COMPRESSION SPECIFICATIONS

Application Minimum psi (kg/cm2) @ RPM Standard psi (kg/cm2) @ RPM
B2200 121 (8.5) @ 300 173 (12.2) @ 300
B2600i 142 (10.0) @ 280 185 (13.0) @ 280
Miata & 323 (1) 135 (9.5) @ 300 192 (13.5) @ 300
MPV
2.6L 142 (10.0) @ 280 185 (13.0) @ 280
3.0L 121 (8.5) @ 300 164 (11.5) @ 300
MX-3
1.6L 142 (10.0) @ 300 185 (13.0) @ 300
1.8L 142 (10.0) @ 300 192 (13.5) @ 300
MX-6 & 626
2.0L 119 (8.4) @ 300 171 (12.0) @ 300
2.5L 142 (10.0) @ 250 203 (14.3) @ 250
Navajo (2) 100 (7.0) (2) 100 (7.0)
Protege
SOHC (1) 121 (8.5) @ 300 173 (12.2) @ 300
DOHC (1) 128 (9.0) @ 300 182 (12.8) @ 300
RX7 79 (5.5) @ 250 100 (7.0) @ 250
929 157 (11.0) @ 270 213 (15.0) @ 270
(1) Difference between cylinders should not be more than 28 psi (2.0 kg/cm2).
(2) Lowest compression reading should not be less than 75 percent of highest compression reading.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.