Testing your intake for leaks.

[Hammerhead]

(11-11-2017 )Billdozer2 Wrote:  My only concern with this boost leak tester is since you are constantly pushing air through the turbo, the turbo will be rotating. Since the engine is not running and supplying the turbo with oil, there is a chance that you could damage the turbo.

The volume isn't high enough to spin the turbo very much or fast. As pressure equalizes on both the fresh air in side as the charged intake side, the turbine will no longer have a "driving force" turning it.
When you shut your truck down, the turbine will still be spinning even though the gear driven oil pump has stopped supplying the turbo, there would be higher turbine speeds and duration during this time than doing an intake system test to equalization.