Toyota 1HD-T, Руководство по ремонту

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TC-4 TURBOCHARGER SYSTEM Precautions
PRECAUTIONS
1. Do not stop the engine immedialtely after pulling a
trailer or high speed or uphill driving. Idle the engine
for 20-120 seconds, depending on the severity of the
driving condition.
2. Avoid sudden racing or acceleration immediately after
starting a cold engine.
3. If the turbocharger is defective and must be replaced,
first check for the cause of the defect in reference to
the following items and replace parts if necessary:
• Engine oil level and quality
• Conditions under which the turbocharger was used
• Oil lines leading to the turbocharger
4. Use caution when removing and reinstalling the tur-
bocharger assembly. Do not drop it or bang it against
anything or grasp it by easily-deformed parts, such as
the actuator or rod, when moving it.
5. Before removing the turbocharger, plug the intake
and exhaust ports and oil inlet to prevent entry of dirt
or other foreign material.
6. If replacing the turbocharger, check for accumulation
of sludge particles in the oil pipes and, if necessary,
replace the oil pipes.
7. Completely remove the gasket adhered to the lubrica-
tion oil pipe flange and turbocharger oil flange.
8. If replacing bolts or nuts, do so only w i t h the specified
new ones to guard against breakage or deformation.
9. 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.
10. 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.