Section 05 ENGINE (4-TEC)
Subsection 07 (CYLINDER HEAD AND VALVES)
1
2
R1503motr101A
1. Camshaft lock
2. Camshaft
Inspection
Check each lobe and bearing journal of camshaft
for scoring, scuffing, cracks or other signs of wear.
Measure camshaft bearing journal diameter and
lobe height using a micrometer.
Measure clearance between both ends of
camshaft and cylinder head.
A
R1503motr102A
B
C
D
A
C
AB
C
A
C
AB
C
A
A. Camshaft lobe (exhaust valves)
B. Camshaft lobe (intake valves)
C. Camshaft bearing journal
D. Camshaft bearing journal — engine front
CAMSHAFT LOBE - EXHAUST VALVE
NEW MINIMUM 31.699 mm (1.248 in)
NEW MAXIMUM
31.809 mm (1.252 in)
SERVICE LIMIT 31.670 mm (1.247 in)
CAMSHAFTLOBE-INTAKEVALVE
NEW MINIMUM
31.480 mm (1.239 in)
NEW MAXIMUM 31.590 mm (1.244 in)
SERVICE LIMIT
31.450 mm (1.238 in)
CAMSHAFT BEARING JOURNAL
NEW MINIMUM 39.892 mm (1.5705 in)
NEW MAXIMUM
39.905 mm (1.5711 in)
SERVICE LIMIT 39.860 mm (1.5693 in)
CAMSHAFT BEARING JOURNAL -
ENGINE FRONT
NEW MINIMUM
24.939 mm (.9818 in)
NEW MAXIMUM
24.960 mm (.9826 in)
SERVICE LIMIT
24.910 mm (.9807 in)
CAMSHAFT BORE MEASURED IN DIAMETER
NEW MINIMUM 40.000 mm (1.5748 in)
NEW MAXIMUM
40.016 mm (1.5754 in)
SERVICE LIMIT
40.050 mm (1.5767 in)
CAMSHAFT BORE - ENGINE FRONT
MEASURED IN DIAMETER
NEW MINIMUM
25.000 mm (.9842 in)
NEW MAXIMUM
25.013 mm (.9848 in)
SERVICE LIMIT 25.050 mm (.9862 in)
Replace parts that are not within specifications.
Installation
For installation, reverse the removal procedure.
Pay attention to the following details.
Grease the camshaft bearing journals well by us-
ing the grease Klueber Isoflex (P/N 293 550 021)
or a similar product.
Install camshaft then place the camshaft lock
no. 20 in the slot.
264 smr2004-Complete Line Up
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