GF14.30-P-2100CY Component Description For the Aspirator Shutoff Valve With Integral Check Valve

GF14.30-P-2100CY Component Description For the Aspirator Shutoff Valve With Integral Check Valve
ENGINE 272.911 in MODEL 204.0 up to Model Year 8
ENGINE 272.921 in MODEL 204.0 /2 up to Model Year 8
ENGINE 272.947 in MODEL 204.0 /2 up to Model Year 8
ENGINE 272.948 in MODEL 204.0 up to Model Year 8
ENGINE 272.961 in MODEL 204.0 /2 up to Model Year 8
ENGINE 272.971 in MODEL 204.0 up to Model Year 8





Location

126/1 Left air shutoff valve
126/2 Right air shutoff valve
M33 Electric air pump

The air shutoff valves are located at the front on the engine.

Task
The air shutoff valves release the way for injected air for actuation of air injection.
When air injection is switched off air is prevented from being inducted into the exhaust ports, as a result of the flow of the exhaust gases.





Function

1 Vacuum connection of air pump switchover valve (Y32)
126/2 Right air shutoff valve (left air shutoff valve has the same functionality)

a Injected air from electric air pump
b Injected air to the outlet ducts

Both air shutoff valves are actuated simultaneously for released air injection, via the air pump switchover valve, with vacuum from the variable intake manifold. The air shutoff valves open and the injected air from the electric air pump can flow into the exhaust ducts of the cylinder heads.

The integral check valves, for a switched of air injection, prevent ingress of exhaust gas into the air shutoff valves and protect them in this way from soiling and thermal destruction.