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Wastegate actuator rod... not connected 700 1998

uid 55's pic
posted by  john sargent on  Sat Jan 25 08:30 CST 2003
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last visit: Wed Oct 22 09:07 CST 2014
[RELATED]

"Okay. That seems logical enough. If the wastegate actuator rod is disconnected, you won't get any boost."

"What would cause the wastegate to stay shut?"

The answer is simple. The exhaust can either go through the exhaust turbine or the wastegate. It incurs less pressure drop and seeks the path of least resistance, which is to push the wastegate open. The wastegate is not spring loaded except by the wastegate actuator. Without the wastegate actuator to hole it shut, it is going to open from exhaust pressure. It takes more energy to spin the turbocharger than to exit the wastegate which is not held shut.





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