FX50 AWD V8-5.0L (VK50VE) (2009)
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Refer to the standards above, and then replace camshaft (EXH) and/or VVEL ladder assembly and cylinder head assembly.
NOTE:
Cylinder head assembly cannot be replaced as a single part, because it is machined together with VVEL ladder assembly.
Camshaft Sprocket (EXH) Runout
1. Put V-block on precise flat table, and support No. 2 and 5 journals of camshaft (EXH).
CAUTION:
Never support No. 1 journal (on the side of camshaft sprocket) because it has a different diameter from the other four locations.
2. Measure the camshaft sprocket (EXH) runout with a dial indicator. (Total indicator reading)
Limit: Refer to "Camshaft". See: Specifications
3. If it exceeds the limit, replace camshaft sprocket (EXH).
Valve Lifter (EXH)
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Check if surface of valve lifter has any wear or crack.
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If wear or crack is found, replace valve lifter (EXH). Refer to See: Specifications.
Valve Lifter Clearance (EXH)
VALVE LIFTER OUTER DIAMETER
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Measure the outer diameter at 1/2 height of valve lifter with a micrometer (A) since valve lifter is in barrel shape.