QX4 2WD V6-3.5L (VQ35DE) (2003)
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Rocker cover
CAUTION:
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After removing timing chain, do not turn crankshaft and camshaft separately, or valves will strike piston heads.
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When installing camshafts, chain tensioners, oil seals, or other sliding parts, lubricate contacting surfaces with new engine oil.
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Apply new engine oil to bolt threads and seat surfaces when installing camshaft sprockets and crankshaft pulley.
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Before disconnecting fuel hose, Preform the "Fuel Pressure Release Procedure".
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Be careful not to damage sensor edges.
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Do not spill engine coolant on drive belts.
Removal
1. Preform the "Fuel Pressure Release Procedure".
2. Remove battery.
3. Remove radiator.
4. Drain engine oil.
5. Remove drive belts and idler pulley with brackets.
6. Remove cooling fan with bracket.
7. Remove engine cover.
8. Remove air duct with air cleaner case, collector, PCV hose, vacuum hoses, fuel hoses, water hoses, wires, harnesses, connectors and so on.
9. Remove the air conditioner compressor, and tie it down using rope or the like to keep it from interfering.
10. Remove the power steering oil pump and reservoir tank. Tie them down using rope or the like to keep them from interfering.
11. Remove alternator.
12. Remove the following.
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Vacuum tank
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Water bypass pipe
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Brackets
13. Remove camshaft position sensor (PHASE), intake valve timing control position sensors and crankshaft position sensor (REF).
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Avoid impact such as dropping.
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Do not disassemble the components.
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Do not place them on areas where iron powder may adhere.
