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Home >> Mazda >> 1972 >> RX-3 Not Available Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> MAZDA Engines - Rotary Piston Engine >> Engine Oiling >> Engine Oiling System >> Pressure Regulator Valve

Pressure Regulator Valve

Mounted in rear housing, valve regulates oil pressure at high RPM. Valve opens to release oil pressure. If oil pressure is less than normal, check regulator valve piston for wear and check spring free length. See OIL PUMP SPECIFICATIONS . Replace as necessary.

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