Merkur Xr4ti L4-140 2.3L SOHC Turbo (1985)
Wastegate: Testing and Inspection
1.
Disconnect wastegate actuator hose at turbocharger fitting.
2.
Connect pressure diagnostic gauge T79P-6634A or equivalent to actuator hose.
3.
Apply 15 psi to actuator and trap. If pressure drops below 2 psi after 2 minutes, replace turbocharger assembly.
4.
Release pressure from actuator, then raise and support vehicle.
5.
While applying 5 psi to wastegate actuator, observe actuator link and the wastegate lever. The link should rotate the lever smoothly when 5 psi is
applied.
6.
If lever and link do not operate smoothly, replace turbocharger assembly.