350Z V6-3.5L (VQ35) (2003)
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Timing Cover: Service and Repair
FRONT TIMING CHAIN CASE
NOTE: This describes removal/installation procedure of front timing chain case and timing chain related parts without removing oil pan (upper) on
vehicle.
When oil pan (upper) needs to be removed or installed, or when rear timing chain case is removed or installed, remove oil pans (upper and
lower) first. Then remove front timing chain case, timing chain related parts, and rear timing chain case in this order, and install in reverse
order of removal.
REMOVAL
1. Place vehicle onto lift.
2. Disconnect battery ground cable.
3. Remove engine cover with power tool.
4. Remove air cleaner case assembly.
5. Remove undercover with power tool.
6. Drain engine coolant from radiator.
7. Drain engine oil from oil pan.
8. Remove engine harnesses.
9. Remove intake manifold collector (upper) and (lower) with power tool.
10. Remove radiator cooling fan assembly.
11. Remove A/C compressor from bracket, and temporarily secure it aside.
12. Remove power steering oil pump from bracket, and temporarily secure it aside.
13. Remove power steering oil pump bracket.
14. Remove alternator.
15. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
16. Remove oil Pan (lower).
17. Remove the RH and LH intake valve timing control covers.
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Loosen bolts in reverse order as shown.
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Use seal cutter (special service tool) or an equivalent tool to cut liquid gasket for removal.
CAUTION: Shaft is internally jointed with intake camshaft sprocket center hole. When removing, keep it horizontal until it is completely disconnected.
18. Remove RH and LH rocker covers with power tool.
NOTE: When secondary timing chain is not removed/installed, this step is not required.
19. Obtain compression TDC of No.1 cylinder as follows:
NOTE: When timing chain is not removed/installed, this step is not required.
a. Rotate crankshaft pulley clockwise to align timing mark (grooved line without color) with timing indicator.
