On-Vehicle Inspection; Turbocharger Boost Pressure; Wastegate; Preparation - Ford TRADER Workshop Manual

TURBOCHARGER
PREPARATION
SST
49 HOBO 740
Pressure tester
TURBOCHARGER
F2
For
inspection of
wastegate
9TGOF2·043
9TGOF2·Q44
9TGOF2.Q45
9TGOF2-046
9TGOF2·042
TURBOCHARGER
On-vehicle Inspection
Turbocharger boost pressure
1 . Disconnect the air hose from the wastegate.
2. Connect a pressure gauge as shown.
3. Connect a tachometer to the engine ..
4. Warm up the engine to operating temperature.
5. Increase the engine speed to
4,000
rpm and verify that the
boost pressure is within specification.
Boost pressure:
41.2-49.1 kPa ,<0.42-0.5 kg/cm
2
,
6.0-7.1 psi)
Turbine wheel
1. Allow the engine to cool.
2. Remove the air hose.
3. Verify that the rotor assembly turns Smoothly.
4. If there is excessive load or noise, replace the turbocharger ..
Oil passage
1. Allow the engine to cool.
2. Remove the oil return pipe.
3. Verify that carbonized oil has not blocked the oil passage
of the turbocharger or the oil return pipe.
4. If the'oil passage is clogged, replace the turbocharger and
return pipe as necessary.
Wastegate
1. Allow the engine to cool.
2. Remove the wastegate actuator hose and attach the SST.
3. Adjust the compressed air pressure to
135
kPa
(1.38
kg/cm2, 19.6 psi).
4. Verify that the rod moves when disconnecting and recon-
necting the air supply hose.
caution
• Do not apply more than 196 kPa (2.0 kg/cm
2
,
28 psi)
of air pressure.
F2-21