XJ-S V12-5.3L (1982)
Camshaft: Service and Repair
CAUTION: Do not rotate the engine with the camshaft(s) disconnected.
REMOVE
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Remove camshaft covers. Refer to CAMSHAFT COVER.
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Remove the rubber grommet from the front of the timing cover.
Timing Chain Tensioner Retracting Tool
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Insert JD 50 (Release Tool) through the timing cover, and release the locking catch on the timing chain tensioner.
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Fit JD 50 (Chain Tension Retainer) and retract the timing chain tensioner until the locking catch is engaged.
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Remove JD 50.
Camshaft Timing Gauge
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Rotate the engine to the cam removal position until Timing Gauge C 3993 can be inserted into the recess in the LH camshaft.
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Note the two uppermost camshaft sprocket retaining bolts and remove Timing Gauge C 3993.
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Rotate the engine until the two LOWER camshaft sprocket retaining bolts become accessible. Push back the lock tabs and remove the two
retaining bolts.
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Rotate the engine to the camshaft removal position and refit Timing Gauge C 3993.