By removing the stainless steel bracket the turbo attaches to i.
Wastegate actuator rod adjustment.
Rotate the wastegate actuator 1 upward in the direction of the arrow.
Therefore the only aspect that we can change on the oem actuator is preload.
Hi folks i m a diyer looking to repair my is20 turbo on a mk7 golf.
On aftermarket actuators and external wastegates we can change the internal spring.
One is that.
I was hoping to figure out whether vcds can help me out here and if so how it works.
I wish to fully activate from one end to the other the rod servo etc get it to find the end stops as there is no external adjustment.
Shortening the wastegate rod using the adjustment screws adds preload to the internal spring.
Reason is that these stick as the pivot joint between the turbo actuator rod is to tight so i undid mine wet sanded it clean 2000grit oil regressed using 1000c brake pad mintex ceratec grease.
This video explains how you can adjust the wastegate preload settings of an internal wastegate turbocharger for increasing the boost or decreasing the boost.
After getting under my 2 0t gli i was able to locate the actuator rod just above the passenger side axle.
Temporarily secure the wastegate.
Remove both of the electric wastegate actuator torx screws 1.
The reverse removes preload.
There are quite a few threads on the 1 8t forum about tuning the wastegate by moving the actuator rod locknuts a few turns thereby making the rod shorter which results in the wastegate opening up less and holding more boost.