G37x Coupe AWD V6-3.7L (VQ37VHR) (2009)
b. Screw M8 bolts (A) [pitch: 1.25 mm (0.049 in) length: approx. 50 mm (1.97 in)] into water pumps upper and lower mounting bolt holes until
they reach timing chain case. Then, alternately tighten each bolt for a half turn, and pull out water pump (1).
CAUTION:
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Pull straight out while preventing vane from contacting socket in installation area.
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Remove water pump without causing sprocket to contact timing chain.
c. Remove M8 bolts and O-rings from water pump.
CAUTION:
Never disassemble water pump.
INSTALLATION
1. Install new O-rings to water pump.
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Apply engine oil to O-ring (1) and engine coolant to O-ring (3) as shown in the figure.
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Locate O-ring with yellow paint mark (A) to front side.
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Locate O-ring with light blue paint mark (B) to rear side.
2. Install water pump.
CAUTION:
Never allow cylinder block to nip O-rings when installing water pump.
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Check timing chain and water pump sprocket are engaged.
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Insert water pump by tightening mounting bolts alternately and evenly.
3. Install timing chain tensioner (primary) as follows:
a. Turn crankshaft clockwise so that timing chain on the timing chain tensioner (primary) side is loose.