Honda S2000 Service Manual page 136

Gylinder Head
Cam Chain Installation (cont'dl
26. Installthe cam chain on the sprocketwith the
punch mark (A) aligned with the center of the two
colored pieces (B).
Fit the cam chain sprocket assembly into the
c y l i n d e r h e a d .
Turn the idler gear counterclockwise to relieve cam
chain free play, and check the alignment of the TDC
marks (C) on the cam chain sprocket with the
cylinder head surface. If the cam chain sprocket is
not positioned at TDC, remove the assembly from
the cvlinder head and reposition the cam chain to
bring the cam chain sprocket to TDc.
2 7 .
6-22
29. Apply engine oil to the idler gear center bolt
threads. Install a new O-ring on the bolt.
30. Install the washer on the idler gear, a nd tighten the
idler gear center bolt (see step 16 on page 6-47).
31. Clamp the cam chain auto-tensioner in a soft-jawed
vise (see step 17 on page 6-48),
32. Turn the 5 x 0.8 mm bolt clockwise to compress the
bottom of the auto-tensioner. then insert the set pin
(see step '18 on page 6-48).
33, Remove the 5 x 0.8 mm bolt from the maintenance
hole. lnstall a new O-ring, then install the nozzle
and end cover (see step 19 on page 6-48).
34. Installthe cam chain auto-tensioner in the cylinder
head with new O-rings (see step 20 on page 6-48).
35. Remove the maintenance bolt from the cylinder
head (see step 21 on page 6-48).
36. Remove the set pin from the cam chain auto-
tensioner, Reinstall the maintenance bolt with new
washer (see step 22 on page 6-48).
3 7 . I n s t a l l t h e r o c k e r a r m a s s e m b l ! .
38. Check the alignment of the TDC marks on the cam
chain sprocket with the cylinder head surface (see
step 23 on page 6-49).
39. Align the TDC marks on the intake camshaft gear
and the exhaust camshaft gear, and install the
camshafts (see step 25 on page 6-49).
4 0 . A p p l y e n g i n e o i l t o t h e b o l t t h r e a d s o f a l l t h e
camshaft holder bolts.
41. Putthe camshaft holders on the cylinder head, then
tighten all bolts to 22 N.m (2.2 kgf m, 16 lbf.ft) (see
step 27 on page 6-49).
42. Make sure the camshaft gears are at TDC.
43. Adjust the valve clearance (see page 6-12).
44. Install the cylinder head cover (see page 6-53).