Camshaft Timing Chain and Sprocket Cleaning and Inspection (LDK, LHU)
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Camshaft Timing Chain and Sprocket Cleaning and Inspection (LDK, LHU)
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1.
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Inspect the timing chain guides (1, 4, 6) for cracking or wear.
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2.
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Replace the timing chain guides if wear exceeds 1.12 mm (0.045 in) depth on the chain guide surface.
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3.
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Inspect the timing chain tensioner shoe for wear.
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4.
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Replace the timing chain tensioner shoe if wear exceeds 1.12 mm (0.045 in) depth on the chain guide surface.
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5.
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Inspect the timing chain (2) and actuators (3, 8) for wear.
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6.
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Inspect the camshaft actuator faces for signs of movement.
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7.
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Inspect the camshaft actuator teeth and chain for signs of excessive wear, chipping, or seizure of the timing chain links.
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8.
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Inspect the oil nozzle body (5) for collapse or cracks at the bolt boss. Discard and replace the oil nozzle body if it is damaged.
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9.
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Inspect the timing chain tensioner (7) for the scoring or free movement.
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10.
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Inspect the timing chain seal for damage. If damaged, replace the seal.
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