EMA - 12 ENGINE MECHANICAL SYSTEM
e. Remove the camshaft ass em bly(A).
A
KDRF197A
f. Remove MLAs.
g. Measure the thickness of the removed tappet us-
ing a micrometer.
EDKE889D
h. Calculate the thickness of a new tappet so that
the valve clearance comes within the specifie d
value.
Valve clearance(Engine c oolant tempera-
ture: 20
C[68 F])
T : Thickness of removed tappet
A : Measured valve clearance
N : Thickness of new tappet
Intake : N = T + [A - 0.20mm(0.0079in.)]
Exhaust : N = T + [A - 0.30mm (0.0118in.)]
i. Select a new tappet with a thickness as close as
possible to the calculated valu e.
NOTE
Tappets are available in 41size increments of
0.015mm (0.0006in.) from 3.00mm (0.118in.) to
3.600mm (0.1417in.)
j. Place a new tappet on the cylinder head.
NOTE
Appling engine oil at the selected tappet on the pe-
riphery and top surface.
k. Install the intake and exhaust camshaft.
l. Install the bear ing caps.
m. Install the timing chain.
n. Turn the crankshaft two tur ns in the operat-
ing direction(clockwise) and realign crankshaft
sprocket and camshaft sprocket timing marks.
o. Recheck the valve clearance.
Valve clearance (Engine coolant tempera-
ture: 20
C[68 F])
[Specification]
Intake : 0 .17 ~ 0.23mm (0.0067 ~ 0.0090in.)
Exhaust : 0.27 ~ 0.33mm (0.0106 ~ 0.0129in.)
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