XJ-S Convertible (XJ27) L6-4.0L (1996)
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Fit upper chain tensioner tool 18G 1436/A (2 Fig. 3).
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Fit and tighten the tool securing bolts (1 Fig. 3).
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Tension the timing chain.
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Remove the camshaft coupling (12 Fig. 4) from the sprocket (11 Fig. 4) and align the securing bolt holes.
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Fit the tab washers (1 Fig. 4), Fit and tighten the securing bolts (2 Fig. 4). Lock over the tabs.
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Release the tension on the timing chain.
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Slacken off the upper chain tensioner tool securing bolts.
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Remove the upper chain tensioner tool 18G 1436/A (2 Fig. 3).
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Clean the tensioner assembly and gasket faces.
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Fit a new housing gasket (10 Fig. 4). Lubricate and fit a new `O' ring (9 Fig. 4).
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Fit the tensioner to the cylinder head.
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Fit and tighten the tensioner assembly securing bolt (4 Fig. 3).
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Clean the valve assembly and fit new `O' rings.
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Lubricate the tensioner valve.
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Using an Allen key, release the tensioner, ie turn the Allen key anti-clockwise.