Checking Idle COMPENSATOR

Check that valve (located in air cleaner) is in closed position when bi-metal temperature is lower than operating temperature. Opening temperature should be 141 - 157°F (61 - 69°C). To check, suck air into tube. If excessive leakage occurs, replace idle compensator as an assembly. When bi-metal is more than approximately 159°F (69°C), check to see that the valve is in the open position. If not, replace idle compensator assembly.