Waste Gate Valve Adjustment Procedure - Takeuchi TB 175 Handbuch

8.3.3 Waste gate valve adjustment procedure

Radial play
It is indispensable to adjust the waste gate valve opening pressure and lift after its overhaul or inner parts
replacement.
Negligence of this adjustment will adversely affect the engine performance.
[NOTICE]
If the adjustment is impossible, give up overhaul but replace the whole turbocharger assembly.
(1) Method for checking the waste gate valve opening pressure and lift
(a)Equipment
Prepare the equipment shown in the figure below.
Rotor play in radial direction
Dial gage
Oil outlet
Oil inlet
125
Magnet base
Move the turbine shaft in the radial
direction at the same time on the
left and right sides.
Service standard: 0.08 to 0.13 mm
Wear limit : 0.17 mm
8. TURBOCHARGER