I don't know a lot about turbos, but try getting someone to rev it up then back it off, the waste gate should open when backing it off i thought. As the turbo has spooled up at the higher RPM, when you back upp quickly, you still have all that air being produced, you need to bleed it off, so the waste gate should upen up, or so i thought.
The only time the wastegate linkage will move is when the boost pressure reaches the wastegate actuator opening or "crack" pressure. When the gate is opened exhaust is allowed to bypass the turbine wheel on the turbo there by slowing the turbo down and controlling the boost it creates. You won't be able to create enough boost to move the wastegate without loading the engine. One of the common problems with wastegates is seizing of the main shaft and you stated that you can move it by hand which is a good thing. It would be a good idea to make sure the gate is closing fully and also apply pressure to the inlet of the actuator to make sure it is functional.I don't know a lot about turbos, but try getting someone to rev it up then back it off, the waste gate should open when backing it off i thought. As the turbo has spooled up at the higher RPM, when you back upp quickly, you still have all that air being produced, you need to bleed it off, so the waste gate should upen up, or so i thought.
As i said, i don't know a lot about turbo setups, only what i have seen on youtube.My car doesn't go PSST between gear changes
