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Home >> Oldsmobile >> 1961 >> Dynamic Base, Eng CD GS, Automatic Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Crankcase Ventilation Systems >> Service Procedures >> Ventilator Valve Service

Ventilator Valve Service

Remove hoses and blow out with compressed air. Remove valve and disassemble. Clean valve with solvent, blow dry, and inspect spring and valve for distortion and etching. Clean small bleed hole in valve with a 1/16" drill. Twist drill by hand only. 

NOTE: When assembling valve, the spring end coil must be in groove just under head of valve. If this is not properly installed, the valve may not close and will result in a rough idle. Clean crankcase and intake manifold connectors, and install valve and hoses.
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