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turbo wastegate help

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Old 11-15-15, 02:21 PM
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ON turbo wastegate help
Hi all,
87 t2 stock turbo
car is overboosting, i apply pressure to the wastegate and the rod move about half a centermeter. i think that too little movement to open the wastegate and maintain proper boost.
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Old 11-15-15, 02:27 PM
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put a mityvac vacuum tester on it and see if it holds vacuum. if it does then your wastegate arm is probably binding up due to rust or wear.
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Old 11-15-15, 04:00 PM
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the lever on the turbo moves freely but the wastegate actuator rod moves little... dont have a vacuum pump right now but can get one tomorrow.
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