FX45 AWD V8-4.5L (VK45DE) (2006)
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12. Remove O-rings from cylinder heads (right and left bank) and cylinder block.
13. Remove chain tensioner cover from front cover.
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Use seal cutter [SST: KV10111100 (J37228)] to cut liquid gasket for remove.
14. Remove oil pump drive spacer.
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Set bolts in the two bolt holes [M6 x pitch 1.0 mm (0.04 inch)] on front surface. Using suitable puller, pull oil pump drive spacer off from
crankshaft.
NOTE: The dimension between the centers of the two bolt holes is 33 mm (1.30 inch).
In the figure, a commercial steering puller is used.
15. Remove oil pump.
16. Remove chain tensioner (left bank) as follows:
NOTE: To remove timing chain and related parts, start with those on left bank. The procedure for removing parts on right bank is omitted
because it is the same as that for left bank.
a. Press tab in the direction of arrow (or turn lever in the direction of arrow) to unlock the locking with the groove that stops tensioner plunger
from returning.
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Lightly press tensioner plunger to release the tension of spring for this operation.
b. Push in tensioner plunger to align the hole on lever and that on pump main body
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Pushing in tensioner too far does not allow the holes to align. Therefore, push in plunger to the degree at which the start of stopper groove
and tab engages.
c. Insert stopper pin [hard wire with approximately 0.5 mm (0.020 inch) diameter or similar tool] to fix plunger. With plunger fixed, remove
chain tensioner.
17. Remove chain tension guide and timing chain slack guide.
18. Remove timing chain and crankshaft sprocket.
CAUTION: After removing timing chain, do not turn crankshaft and camshaft separately, or valves will strike the piston head.