G37 Coupe V6-3.7L (VQ37VHR) (2008)
35. Remove internal chain guide (1), slack guide (2) and tension guide (3).
36. Remove timing chain (primary) and crankshaft sprocket.
CAUTION:
After removing timing chain (primary), never turn crankshaft and camshaft separately, or valves strike the piston heads.
37. Remove timing chain (secondary) and camshaft sprockets as follows:
a. Attach suitable stopper pin (C) to the timing chain tensioners (secondary) (1), (2).
A: Bank 1
B: Bank 2
NOTE:
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Use approximately 0.5 mm (0.02 in) dia. hard metal pin as a stopper pin.
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For removal of timing chain tensioners (secondary), refer to EM-83, "Exploded View". See: Camshaft, Lifters and Push
Rods/Camshaft/Service and Repair
(Removing VVEL ladder assembly is required.)
b. Remove camshaft sprocket (EXH) mounting bolt.
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Secure the hexagonal portion of camshaft (EXH) using a wrench to loosen mounting bolt.
CAUTION:
Never loosen the mounting bolt by securing anything other than the camshaft (EXH) hexagonal portion or with tensioning the
timing chain.
c. Remove camshaft sprocket (INT) mounting bolt.