LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 1978 >> 530i Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Tune-Up >> Tune-Up Procedures - 6-Cylinder >> Idle Speed & Mixture >> 530i & 630CSi

530i & 630CSi

  1. Ensure engine is at normal operating temperature, air filter is in good condition, ignition timing and valve clearance adjusted to specification. Disconnect collector-to-charcoal canister, but DO NOT plug openings.
  2. Disconnect and plug air injection hose. Connect tachometer to engine. Adjust idle speed to specified RPM by turning adjustment screw located below the throttle butterfly switch.
  3. Remove plug from airflow sensor. Use Wrench (131 060) to turn by-pass air screw in airflow sensor until specified CO% level is obtained. Reinstall airflow sensor plug. Reconnect all hoses.
scientia non olet · About LEMON Manuals