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Description
Protective varnish
Outer spring
He1
ghl
Under a load of
Inner spring
Height
Under a loatl of
ENGINE
CYLINDER HEAD
REPLACING A VALVE SPRING (HEAD IN PLACE)
IDENTIFICATION AND RATING OF THE SPRINGS
up to
sno
GREY
30.8
mrn
70 kg
26.8
mm
35.5 kg
XM en _e
_
ine
_ _ _ _ _ _ _ _ G+--
x _N
_
1-XN2-XM7 engines
since
sno
YELLOW
30.8
mm
66
kg
26.8
mm
33.5 kg
since
1no
BLACK
30.8
mm
62 kg
26.B mm
31.5 ka
REPLACING A VALVE SPRING (HEAD IN PLACE)
I
INLET VALVE SPRING
WARNING
-
T
urn the
crankshaft
in 1
t
s direction of
rota tion.
-
Bring exhaust valve (1) to beginning of
opening.
-
Disengage the inlet roc:ker as shown opposite.
-
Bring the piston to
T.D.C.
(firing stroke)
- 01esengage the valve spring collets.
Remove the upper spnng cup and the springs.
Replace the springs.
Reassemble in the reverse
order.
-
Adjust the valve clearances
if
the engine 1s cold
www.
~~CJ
.
orG
'
I
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