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02-14
4. GUIDELINES ON ENGINE SERVICE
To prevent personal injuries and vehicle damages that can be caused by mistakes during engine and
unit inspection/repair and to secure optimum engine performance and safety after service works, basic
cautions and service work guidelines that can be easily forgotten during engine service works are
described in.
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Cautions before service works
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For safe and correct works, you must observe the working procedures and instructions in this
manual. And, use the designated tools as follow:
Engine stand / Heavy duty engine jack
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To prevent the engine from starting abruptly, do not allow anybody to get in the vehicle while
servicing in engine compartment.
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Before work on engine and each electrical equipment, be sure to disconnect battery negative (-)
terminal.
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Before service works, be sure to prepare the works by cleaning and aligning work areas.
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Do not allow the foreign material get into the fuel injection system.
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When removing the engine, use only the safety hook on engine and engine hanger. Do not support
the bottom of oil pan with a jack.
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Engine and accessories
Engine has a lot of precise portions so tightening torque should be correct during disassembly/assembly
and removal/installation and service work should be done in clean ways during disassembly/assembly.
Maintaining working area clean and cautious service administration is essential element of service works
while working on the engine and each section of the vehicle. So the mechanics should well aware of it.
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Completely drain the engine oil, coolant and fuel from engine before removal.
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Before disassembling/assembling the engine components, carefully read the working procedures in
this manual.
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Make sure to keep the specified tightening torques during installation.
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Clean and properly lubricate the parts before reassembly.
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Carefully check that there are not any interference while servicing.
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Troubleshooting
