Revision: 2005 August 2006 350Z
b. Screw M8 bolts [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.
? Pull straight out while preventing vane from contacting
socket in installation area.
? Remove water pump without causing sprocket to contact
c. Remove M8 bolts and O-rings from water pump.
Do not disassemble water pump.
INSPECTION AFTER REMOVAL
? Check for badly rusted or corroded water pump body assembly.
? Check for rough operation due to excessive end play.
? Replace water pump, if necessary.
1. Install new O-rings to water pump.
? Apply engine oil and engine coolant to O-rings as shown in
? Locate O-ring with white paint mark to engine front side.
2. Install water pump.
Do not allow cylinder block to nip O-rings when installing
? Make sure that timing chain and water pump sprocket are
? Insert water pump by tightening mounting bolts alternately
3. Install timing chain tensioner (primary) as follows: