Audi a4 b7 wastegate help

Hi everyone I bought a project b7 2.0t with a broken timing belt, everything went well.now as I was inspecting the turbo before I install it . I applied pressure to the wastegate and the wastegate slowly creeps back.is it suppose to? Or is it suppose to hold? I used a hand held vacuum pump .I also made sure connections were tight . Ty so much and have a great day
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Moving to General VW/Audi Repair.

-Uwe-

The wastegate should have held the pressure in my opinion because the system dumps/vents that pressure back off via N75.

Hi audi4ever,
Are you sure your vacuum pump is ok and holding vacuum?
Regards HMC

When I plug my vacuum with my finger it holds well,but also know, it's not vacuum I'm using it's pressure,anything I could do to test the pressure side of my vacuum?

You could connect it to a low pressure gauge and see what happens.
Regards HMC

Hi I used the same vacuum pump on my sons wastegate , his A5 , cuz he was doing a service on it and I just happen to be there .his wastegate did hold, unlike the one in my B7 2.0 T.so is my diaphram torn you think? I apply pressure to it, then it slowly retracts.