Turbocharger Vacuum Diaphragm, Checking
Special tools and workshop equipment required
- Hand Vacuum Pump VAS6213
Test Conditions
- The hose from the turbocharger over Wastegate Bypass Regulator Valve -N75- must have continuity to vacuum diaphragm.
- Wastegate Bypass Regulator Valve -N75- OK
Work Procedure
-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .
-- Connect Hand Vacuum Pump VAS6213 to vacuum diaphragm -arrow-.
-- Set the slide ring -1- on Hand Vacuum Pump VAS6213 to position -B- for "vacuum".
The pressure must not exceed 750 mbar (10.8 psi). If the pressure is exceeded, the vacuum diaphragm can be damaged.
-- Operate Hand Vacuum Pump VAS6213 several times and observe rods.
The linkage -A- must move approximately 300 mbar (4.35 psi) and be at approximately 700 mbar (10.15 psi) at end position.
The linkage stroke is approximately 10 mm.
If pressure cannot be raised using the Hand Vacuum Pump VAS6213 or pressure drops immediately, check the Hand Vacuum Pump VAS6213 and connecting hoses for leaks.
If no fault is found with the Hand Vacuum Pump VAS6213 and the connecting hoses:
- Replace the turbocharger. Refer to TURBOCHARGER, REMOVING AND INSTALLING .