Mazda 6 2002, Workshop Manual

Page: 49 / 1248

B–6
VALVE CLEARANCE
16. Loosen the timing chain.
(1) Using a suitable screwdriver or equivalent
tool, unlock the chain tensioner ratchet.
(2) Turn the exhaust camshaft clockwise using a
suitable wrench on the cast hexagon and
loosen the timing chain.
(3) Placing the suitable bolt (M6 X 1.0 length
25mm—35mm {0.99in—1.37in}) at the
engine front cover upper blind plug, secure
the chain guide at the position where the
tension is released.
17. Hold the exhaust camshaft using a suitable
wrench on the cast hexagon as shown.
18. Remove the exhaust camshaft sprocket.
19. Loosen the camshaft cap bolts in several passes
in the order shown.
Note
•
The cylinder head and the camshaft caps
are numbered to make sure they are
reassembled in their original position. When
removed, keep the caps with the cylinder
head they were removed from. Do not mix
the caps.
20. Remove the camshaft.
21. Remove the tappet.
22. Select proper adjustment shim.
AME2212W005
AME2212W006
AME2212W007
AME2212W008