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Home >> Subaru >> 2015 >> WRX Limited, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Lubrication System (STI)) >> Oil Pump >> Inspection >> Oil Relief Valve

Oil Relief Valve

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Check the valve for assembly condition and damage, and the relief valve spring for damage and deterioration. Replace the parts if defective.

Relief valve spring: 

Free length 

73.7 mm (2.902 in) 

Installed length 

54.7 mm (2.154 in) 

Load when installed 

93.1 N (9.49 kgf, 20.93 lbf)