Honda Civic 2002-2003 Service Manual page 125

Cylinder Head
Camshaft Inspection (cont'd)
5. Unscrew the camshaft holder bolts two turns at a
time, in a crisscross pattern. Then remove the
camshaft holders from the cylinder head.
6. Lift the camshafts out of the cylinder head, wipe
them clean, then inspect the lift ramps. Replace the
camshaft if any lobes are pined, scored, or
excessively worn.
7. Clean the camshaft journal surfaces in the cylinder
head, then set the camshafts back in place. Place a
plastigage strip across each journal.
8. Install the camshaft holders, then tighten the bolts
to the specified torque as shown in step 2.
9. Remove the camshaft holders. Measure the widest
portion of plastigage on each journal.
• If the camshaft-to-holder clearance is within
limits, go to step 11.
• If the camshaft-to-holder clearance is beyond the
service limit and the camshaft has been replaced,
replace the cylinder head.
• If the camshaft-to-holder clearance is beyond the
service limit and the camshaft has not been
replaced, go to step 10.
Camshaft-to-Holder Oil Clearance:
Standard (New):
No.1 Journal: 0.030-0.069 mm
(0.001-0.003 in.)
No.2, 3, 4, 5 Journals: 0.060-0.099 mm
Service Limit:
6-30
_
..
_ " "
(0.002-0.004 in.)
0.15 mm (0.006 in.1
10. Check the total runout with the camshaft supported
on V-blocks.
• If the total runout of the camshaft is within the
service limit, replace the cylinder head.
• If the total runout is beyond the service limit,
replace the camshaft and recheck the camshaft-
to-holder oil clearance. If the oil clearance is still
beyond the service limit, replace the cylinder
head.
Camshaft Total Runout:
Standard (Newl: 0.03 mm (0.001 in. I max.
Service Limit: 0.04 mm (0.002 in.
I
11. Measure cam lobe height.
C L b H . h S d d (N
am
0
e elgl
t
tan ar ew:
INTAKE EXHAUST
PRI 33.925 mm 34.092 mm
(1.3356 in.) (1.3422 in.)
SEC 29.638 mm
(1.1668 in.)
PRI: Primary
C/C: Cam Chain
SEC: Secondary
INTAKE
SEC PRI