Turbocharger System Precautions - Toyota 2L-T Repair Manual

TC-4 TURBOCHARGER SYSTEM
-
Precautions
PRECAUTIONS
No!
/
i
Do not stop the engine immediately after pulling a trailer
or high speed or uphill driving. Idle the engine for 20
-
120 seconds, depending on the severity of the driving con-
dition.
Avoid sudden racing or acceleration immediately after
starting a cold engine.
I f the turbocharger is defective and must be replaced, first
check for the cause of the defect in reference to the fol-
lowing items and replace parts i f necessary:
Engine oil level and quality
Conditions under which the turbocharger was used
Oil lines leading to the turbocharger
Use caution when removing and reinstalling the turbo-
charger assembly. Do not drop
it
or bang
it
against any-
thing or grasp it by easily-deformed parts, such as the
actuator or rod, when moving
it.
Before removing the turbocharger, plug the intake and
exhaust ports and oil inlet to prevent entry of dirt or other
foreign material.
I f replacing the turbocharger, check for accumulation of
sludge particles in the oil pipes and, i f necessary, replace
the oil pipes.
Completely remove the gasket adhered to the lubrication
oil pipe flange and turbocharger oil flange.
If replacing bolts or nuts, do so only with the specified
new ones to guard against breakage or deformation.
If replacing the turbocharger, put 20 cc (1.2 cu in.) of oil
into the turbocharger oil inlet and turn the impeller wheel
by hand to spread oil to the bearing.
If overhauling or replacing the engine, cut the fuel supply
after reassembly and crank the engine for 30 seconds to
distribute oil throughout the engine. Allow the engine to
idle for 60 seconds.