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tree98 · 01-10-2020, **(Subject: 870 VGT actuator to test for boost leaks? )**

Can I manually close the air operated actuator with the engine at an idle to create boost and check for leaks?

01-10-2020, **(Subject: 870 VGT actuator to test for boost leaks? )**

yes, it will be hard unless you remove the air actuator part though.

Lonestar10 · 01-10-2020, **(Subject: 870 VGT actuator to test for boost leaks? )**

you wont wanna go full closed but 80%ish or so is what i do on the 871 with 1100rpm idle to check for leaks.

tree98 · 01-11-2020, **(Subject: 870 VGT actuator to test for boost leaks? )**

I was thinking of using regulated shop air plumbed right into the actuator.

Lonestar10 · 01-11-2020, **(Subject: 870 VGT actuator to test for boost leaks? )**

should be good spray the turbo side first as making 10-15psi at idle makes the hot side pipes smoking hot in a hurry.