IDLE COMPENSATOR
EF & EC-664prose procedureIdle compensator opening temperature
Below 55 (131)
Bimetal functionFully closed
55 - 65 (131 - 149)
Bimetal functionClosed or open
Above 65 (149)
Bimetal functionFully open
Inspection
- 1Warm up engine completely.
- 2Open engine hood and remove air cleaner cover.
- 3Direct warm air to idle compensator with a heat gun. And measure operating temperature of idle compensator.Place thermometer as close as possible to idle compensator sensor.
SEF235A - 4Idle compensator is in good order if a "hissing" sound is heard when its temperature reaches operating temperature. If not, replace idle compensator.
CAUTION
Take care not to bend or damage bimetals of idle compensator.