And 13 Horsepower - DeWalt DW168F Manual

Cylinder Head Valves
9 anD 13 h.p.
B8. Head Bolts (4)
C8. Cylinder head cover
G6. Spark plug
D8. Head Gasket
bolts in a crisscross
E8. Gasket
pattern, taking 2-3
F8. Dowel pins (2)
steps.
G8. Cylinder Head
H8. Valve spring retainer (2)
I8. Valve rotator (2)
J8. Push rod guide
K8. Rocker arm (2)
L8. Valve spring (2)
M8. Rocker arm pivot (2)
N8. Rocker arm pivot nut (2)
O8. Rocker arm pivot bolt (2)
P8. Exhaust valve
Q8. Intake valve
R8. Oil Seal
S8. Push rods (2)
T8. Plate
U8. Shroud bolt
CaUtIon: If the valve rotator (I8)
is not installed the exhaust valve (P8)
could drop into the cylinder when starting
the engine.
Inspect valve spring (L8).
CaUtIon: Do not remove the
valve spring (L8) while the cylinder head
is installed or the valves (P8, Q8) will drop
into the cylinder.
G6
Loosen and tighten
G8
b8
E8
C8
L8
H8
I8
K8
m8
N8
Clean spark plug. See spark plug
under Maintenance.
D8
T8
U8
R8
S8
J8
O8
43
f8
before installation, remove any carbon deposits from
the combustion chamber and inspect the valve seats.
After assembly measure the cylinder compression.
Do not interchange
P8
the exhaust (P8) and
intake (Q8) valves.
Q8
Remove carbon deposits
from exhaust valves (P8) and
inspect the valve.
Check for wear on rocker arm
and push rods, replace if needed.