Frontier 4WD V6-4.0L (VQ40DE) (2006)
NOTE:
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Apply engine oil to new O-rings.
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Locate new O-ring with white paint mark to engine front side.
2. Install water pump.
CAUTION: Do not allow timing chain case to nip O-rings when install water pump.
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Make sure that timing chain and water pump sprocket are engaged.
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Insert water pump by tightening bolts alternately and evenly.
3. Install timing chain tensioner (primary) as follows:
a. Remove dust and foreign material completely from backside of timing chain tensioner (primary) and from installation area of rear timing chain
case.
b. Turn crankshaft pulley clockwise so that timing chain on the timing chain tensioner (primary) side is loose.
c. Install timing chain tensioner (primary) with its stopper pin attached.
CAUTION: Be careful not to drop bolts inside timing chain case.
d. Remove stopper pin.
e. Make sure again that timing chain and water pump sprocket are engaged.
4. Install chain tensioner cover and water pump cover as follows: