Section 02 ENGINE
Subsection 10 (CYLINDER HEAD)
GENERAL
NOTE: When diagnosing an engine problem, al-
ways perform an engine leak test. This will help
pin-point a problem. Refer to
ENGINE LEAK TEST
in this subsection for procedures.
Always place t
he vehicle on level surface.
Always disconnect the negative wire from the bat-
tery before working on the engine.
Even if the removal of many parts is not neces-
sary to reach another part, it is recommended to
remove these parts in order to check them.
When disasse
mbling parts that are duplicated in
the engine, (
e.g.: valves, bushings), it is strongly
recommended
to note their position (cylinder 1, 2
or 3) and to ke
ep them as a “group”. If you find
a defective c
omponent, it would be much easier
to find the c
ause of the failure within the group of
parts (e.g.
: you found a worn valve guide. A bent
spring coul
d be the cause and it would be easy to
know which o
ne among the springs is the cause
to replace
it if you grouped them at disassembly).
Besides, s
ince used parts have matched together
during the
engine operation, they will keep their
matched fi
t when you reassemble them together
within th
eir “group”.
During assembly/installation, use torque values
and service products as in the exploded view.
Clean threads before applying a threadlocker. Re-
fer to
SELF-LOCKING FASTENERS
and
LOCTITE
APPLICATION
at the beginning of this manual for
complete procedure.
WARNING
Torque wrench tightening specifications
must be strictly adhered to.
Locking devices (e.g.: locking tabs, elastic
stop nuts, self-locking fasteners, cotter pins,
etc.) must be replaced with new ones.
Hoses, cable or locking ties removed during the
removal must be reinstalled as per factory stan-
dards.
INSPECTION
ENGINE LEAK TEST
The procedure has to be done when engine oper-
ating temperature of approximately 70°C (158°F)
is reached.
WARNING
Be careful to burns when working on a hot
engine.
Preparation
1. Remove any required parts to give access to
engine.
2. Remove safet
ylanyard.
WARNING
Safety lanyard must be removed to prevent
engine to be cranked while fuel rail is re-
moved to prevent fuel to be sprayed out.
Fuel is flammable.
3. Remove jet pump (refer to
JET PUMP
subsec-
tion).
4. Remove coolant pressure cap.
WARNING
To avoid potential burns, only remove the
coolant pressure cap by wearing the appro-
priate safety equipment.
5. Remove o
il dipstick.
smr2009-025-002_a
1. Oil dipstick
6. Unplug and remove ignition coils.
7. Remove spark plugs.
NOTE: Ignition coil may be used as an extractor.
smr2009-025 129
To Next Page
Loading...
Need help?
General