(3) If the measured axial and radial plays are beyond the limit of wear, replace or repair the turbocharger.
3) Guide for disassembling/cleaning and checking the turbocharger
First, disassemble the turbocharger from the engine and clean/check it with the oil inlet and outlet
plugged with tape and so on.
4) Precautions for reassembling the turbocharger onto the engine
For reassembly of the turbocharger or handling it after reassembly operation, be sure to observe the
following precautions:
Especially, exercise extreme care to prevent foreign matters from entering the inside of the turbocharger.
(1) Lubricating system
·Before reassembling the turbocharger onto the engine, inject new oil in the oil inlet port and lubricate
the journal and thrust bearings by rotating them with hand.
·Clean not only the pipes installed between the engine and oil inlet port but also the oil outlet pipe and
check them for damage or foreign matters.
·Assemble each joint on oil pipes securely to prevent oil leaks.
(2) Intake system
·Check the inside of the intake system for foreign matters.
·Assemble each joint on the intake duct and air cleaner securely to prevent air leaks.
(3) Exhaust system
·Check the inside of the exhaust system for foreign matters.
·Be sure to use heat resisting steel bolts and nuts. Do not interchange them with ordinary steel bolts
and nuts when performing reassembly operation.
Apply anti-seizure coating to the bolts and nuts.
·Assemble each joint on the exhaust pipes securely to prevent gas leaks.
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