check oil MITSUBISHI LANCER EVOLUTION 2007 Service User Guide

ENGINE -On-vehicle ServiceENGINE -On-vehicle ServiceENGINE -On-vehicle Service11A-11
10. Turn the ignition switch to the “LOCK” (OFF) position
and then remove the MUT-II.
COMPRESSION PRESSURE CHECK
1. Before inspection, check that the engine oil, starter and
battery are normal. In addition, set the vehicle to the
pre-inspection condition.
2. Remove the ignition coils and spark plug cables.
3. Remove all of the spark plugs.
4. Disconnect the crank angle sensor connector.
NOTE
Doing this will prevent the engine-ECU from carrying out
ignition and fuel injection.
5. Cover the spark plug hole with a shop towel etc., and
after the engine has been cranked, check that no foreign
material is adhering to the shop towel.
Caution
(1) Keep away from the spark plug hole when
cranking.
(2) If compression is measured with water, oil, fuel,
etc., that has come from cracks inside the cylinder,
these materials will become heated and will gush
out from the spark plug hole, which is dangerous.
6. Set compression gauge to one of the spark plug holes.
7. Crank the engine with the throttle valve fully open and
measure the compression pressure.
Standard value (at engine speed of 250 r/min):
1,128 kPa
Limit (at engine speed of 250 r/min):
Min. 951 kPa
8. Measure the compression pressure for all the cylinders,
and check that the pressure differences of the cylinders are
below the limit.
Limit: Max. 98 kPa
9. If there is a cylinder with compression or a compression
difference that is outside the limit, pour a small amount
of engine oil through the spark plug hole, and repeat
the operations in steps 7 and 8.
(1) If the compression increases after oil is added, the
cause of the malfunction is a worn or damaged piston
ring and/or cylinder inner surface.
(2) If the compression does not rise after oil is added,
the cause is a burnt or defective valve seat, or pressure
is leaking from the gasket.
10. Connect the crank angle sensor connector.
11. Install the spark plugs.
Crank angle sensor
connector

ENGINE -On-vehicle Service11A-12
12. Install the ignition coils and spark plugs.
13. Use the MUT-IIto erase the self-diagnosis codes or
disconnect the battery cable from the battery ( - ) terminal
for 10 seconds or more and then reconnect the cable.
NOTE
This will erase the diagnosis code resulting from the crank
angle sensor connector being disconnected.
MANIFOLD VACUUM CHECK
1. Set the vehicle to the pre-inspection condition.
2. Turn the ignition switch to the “LOCK” (OFF) position.
3. Set the engine tachometer or connect the MUT-II.
4. Check that the idle speed is within the standard value.
NOTE
When using the MUT-II, select the code No.22.
5. Connect the three-way union joint to the vacuum hose
between the fuel pressure control valve and the air intake
plenum, and connect a vacuum gauge.
6. Check the manifold vacuum at idle.
Limit: 58 kPa
7. Turn the ignition switch to the “LOCK” (OFF) position.
8. Remove the vacuum gauge and install the vacuum hose
in its original location.
9. Remove the engine tachometer or the MUT-II.
LASH ADJUSTER CHECK
If an abnormal noise (knocking) that seems to be coming
from the lash adjuster is heard after starting the engine and
does not stop, carry out the following check.
NOTE
(1) The abnormal noise which is caused by a problem
with the lash adjusters is generated after the engine
is started, and will vary according to the engine speed.
However, this noise is not related to the actual engine
load.
Because of this, if the noise does not occur
immediately after the engine is started, if it does not
change in accordance with the engine speed, or if
it changes in accordance with the engine load, the
source of the noise is not the lash adjusters.
Vacuum gauge
Fuel pressure
control valve

ENGINE -On-vehicle Service11A-13
(2) If there is a problem with the lash adjusters, the noise
will almost never disappear, even if the engine has
been run at idle to let it warm up.
The only case where the noise might disappear is
if the oil in the engine has not been looked after
properly and oil sludge has caused the lash adjusters
to stick.
1. Start the engine.
2. Check that the noise occurs immediately after the engine
is started, and that the noise changes in accordance
with changes in the engine speed.
If the noise does not occur immediately after the engine
is started, or if it does not change in accordance with
the engine speed, the problem is not being caused by
the lash adjusters, so check for some other cause of
the problem. Moreover, if the noise does not change in
accordance with the engine speed, the cause of the
problem is probably not with the engine. (In these cases,
the lash adjusters are normal.)
3. While the engine is idling, check that the noise level does
not change when the engine load is varied.
If the noise level changes, the cause of the noise is
probably parts striking because of worn crankshaft
bearings or connecting rod bearings. (In such cases, the
lash adjusters are normal.)
4. After the engine has warmed up, run it at idle and check
if any noise can be heard.
If the noise has become smaller or disappeared, oil sludge
could make the lash adjusters stick. Clean the lash
adjusters. (Refer to the Engine Workshop Manual.) If not
improved, go to step 5.
5. Bleed air from the lash adjusters.
6. If the noise has not disappeared even after the air
bleeding, clean the lash adjusters.
(Refer to GROUP 11B - Rocker Arms and Camshaft.)

NOTE
(1) If the vehicle is parked on a slope for a long period
of time, the amount of oil inside the lash adjuster
will decrease, and air may get into the high pressure
chamber when starting the engine.
(2) After parking the vehicle for long periods, the oil drains
out of the oil passage, and it takes time for the oil
to be supplied to the lash adjuster, so air can get
into the high pressure chamber.
(3) If either of the above situations occur, the abnormal
noise can be eliminated by bleeding the air from inside
the lash adjusters.

ENGINE -On-vehicle Service11A-14
1. Check the engine oil and replenish or replace the oil
if necessary.
NOTE
(1) If there is a only small amount of oil, air will be drawn
in through the oil screen and will get into the oil
passage.
(2) If the amount of oil is greater than normal, then the
oil will being mixed by the crankshaft and a large
amount of air may get mixed into the oil.
(3) If the oil is degenerated, air and oil will not separate
easily in oil, and the amount of air mixed into the
oil will increase.
(4) If the air which has been mixed in with the oil due
to any of the above reasons gets into the high pressure
chamber of the lash adjuster, the air inside the high
pressure chamber will be compressed when the valve
is open and the lash adjuster will over-compress,
resulting in abnormal noise when the valve closes.
This is the same effect as if the valve clearance is
adjusted to be too large by mistake. If the air inside
the lash adjusters is then released, the operation
of the lash adjusters will return to normal.
2. Run the engine at idle for 1 - 3 minutes to let it warm
up.
3. With no load on the engine, repeat the drive pattern shown
in the illustration at left and check if the abnormal noise
disappears. (The noise should normally disappear after
10 - 30 repetitions, but if there is no change in the noise
level after 30 repetitions or more, the problem is probably
not due to air inside the lash adjusters.)
4. After the noise has disappeared, repeat the drive pattern
shown in the illustration at left a further 5 times.
5. Run the engine at idle for 1 - 3 minutes and check that
the noise has disappeared.
Good
High-pressure chamber
Gradually open the
throttle valve.
Drive pattern for air bleeding
Close the throttle
valve.
Approx.
3,000 r/min
15
seconds15
seconds
Idle speed
Once

ENGINE -Crankshaft Pulley/Camshaft and Camshaft Oil Seal11A-16
REMOVAL SERVICE POINT
AA"DRIVE BELT REMOVAL
Due to the adoption of the Serpentine drive system with the
auto-tensioner, the following operation is required:
1. Insert the 12.7sq. spinner handle and etc. into the tool
hole of the auto-tensioner and rotate it counterclockwise
until the auto-tensioner gets to the stopper.
2. Align hole A with hole B for fixing by inserting the L-shaped
hexagon wrench, then remove the drive belt.
Caution
When the drive belt is reused, use a chalk to indicate
an arrow of rotation direction on the back of the belt
so that it can be re-assembled in the same direction
as before.
CAMSHAFT AND CAMSHAFT OIL SEAL
REMOVAL AND INSTALLATION
Caution
If the vehicle is equipped with the Brembo disc brake, during maintenance, take care not to contact
the parts or tools to the caliper because the paint of caliper will be scratched.
Pre-removal and Post-installation Operation
DUnder Cover Removal and Installation (Refer to GROUP 51 - Front Bumper.)
DDrive Belt Tension Check (Refer to P.11A-7.)
DDrainage and Refilling of Engine Coolant (Refer to GROUP 14 - On-vehicle Service.)
DAir Duct Removal and Installation (Refer to Group 15 - Air Cleaner.)
DAir Pipe C Removal and Installation (Refer to GROUP 15 - Intercooler.)
DSecondary Air Pipe Assembly Removal and Installation (Refer to GROUP 15 - Secondary Air Supply System.)
DTiming belt Removal and Installation (Refer to P.11A-34.)
Hole A
L-shaped
hexagon
wrench
Hole B

ENGINE -Camshaft and Camshaft Oil Seal11A-21
2. Since the shape of camshaft bearing caps No.2 - 5 is
identical, check the identification marks so that the bearing
cap No., intake side, or exhaust side cannot be mistaken
to install to the direction as shown in the illustration.
Identification mark (engraved on the front and bearing
caps No.2 - 5)
I: Intake side
E: Exhaust side
3. Apply sealant to the positions (6 areas) of the upper side
of the cylinder head as shown in the illustration.
Specified sealant:
MITSUBISHI GENUINE PART MD970389 or
equivalent
4. Position the camshaft bearing cap rear in the direction as
shown in the illustration for installation.
5. Check the identification marks on the camshaft bearing
cap front so that intake side and exhaust side cannot
be mistaken in the same way as that of bearing caps
No.2 - 5.
6. Tighten the bearing cap mounting bolt increasing the
pressure in 2 to 3 times and finally tighten to the specified
torque.
Tightening Torque: 20±1 N·m
7. Ensure that the rocker arm is installed properly.
NOTE
Remove an excess of sealant completely.
"DACAMSHAFT OIL SEAL INSTALLATION
1. Apply engine oil on the circumference of oil seal lip.
2. Use the special tool as shown in the illustration to pressfit
the oil seal.
"EACAMSHAFT SPROCKET INSTALLATION
Hold the hexagon part of the camshaft with a wrench and
tighten the mounting bolt to the specified torque in the same
way as that for removal.
Tightening Torque: 89±9 N·m
Engine FrontBearing cap No.
Identification of
intake side and
exhaust side
Engine Front
Front markingEngine Front
MD998713

ENGINE -Oil Pan11A-25
INSTALLATION SERVICE POINTS
"AAOIL PAN INSTALLATION
1. Remove sealant remained on the oil pan and the cylinder
block.
2. Apply sealant on the mounting surface of oil pan without
any gap as indicated in the figure, and install oil pan
on cylinder block.
Specified sealant:
MITSUBISHI GENUINE PART MD970389 or
equivalent
3. Tighten the mounting bolt of oil pan to the specified torque.
Be careful not to use a wrong bolt when tightening the
bolt as shown in the illustration.
Tightening Torque: 9.0±3.0 N·m
"BADRAIN PLUG GASKET INSTALLATION
Gasket should be replaced with a new one, and install it
in the direction specified in the figure.
"CAOIL RETURN PIPE GASKET INSTALLATION
Gasket should be replaced with a new one, and set the convex
part to the position as shown in the illustration for installation.
NOTE
There is no specific direction indicated for installing the
turbocharger side of the oil return pipe gasket.
INSPECTION
DCheck oil pan for cracks.
DCheck oil pan sealant - coated surface for damage and
deformation.
DCheck oil screen for cracked, clogged or damaged wire
net and pipe.
ø4 mm
at the groove
at the bolt hole
M6×8mm
Gasket
Oil Pan Side
Convex part

ENGINE -Cylinder Head Gasket11A-28
CYLINDER HEAD GASKET
REMOVAL AND INSTALLATION
Caution
If the vehicle is equipped with the Brembo disc brake, during maintenance, take care not to contact
the parts or tools to the caliper because the paint of caliper will be scratched.
Pre-removal and Post-installation Operation
DFuel Outflow Preventive Operation (Refer to GROUP 13A - On-vehicle Service.)
DFuel Leak Check
DStrut Tower Bar Removal and Installation (Refer to GROUP 42.)
DUnder Cover Removal and Installation (Refer to GROUP 51 - Front Bumper.)
DDrive Belt Tension Check (Refer to P.11A-7.)
DAccelerator Cable Adjustment (Refer to GROUP 17 - On-vehicle Service.)
DDrainage and Refilling Engine Oil (Refer to GROUP 12 - On-vehicle Service.)
DDrainage and Refilling of Engine Coolant (Refer to GROUP 14 - On-vehicle Service.)
DAir Cleaner Assembly Removal and Installation (Refer to GROUP 15.)
DAir Hose E, Air Pipe C, Air hose D Removal and Installation (Refer to GROUP 15 - Intercooler.)
DBattery Removal and Installation
DCenter Cover Removal and Installation (Refer to P.11A-17.)
DAccelerator Cable Removal and Installation (Refer to GROUP 17.)
DRadiator Removal and Installation (Refer to GROUP 14.)
DSecondary Air Control Valve Bracket Removal and Installation (Refer to GROUP 15 - Secondary Air Supply System.)
DCrossmember Bar Removal and Installation (Refer to GROUP32 - Engine Roll Stopper, Centermember.)
DFront Exhaust Pipe Removal and Installation (Refer to GROUP 15.)
DStarter Removal and Installation (Refer to GROUP 16.)
DTiming Belt Removal and Installation (Refer to P.11A-34.)

ENGINE -Cylinder Head Gasket11A-32
3. Use special tool to tighten bolts according to the following
procedure (tightening for plastic zone)
(1) According to the sequence specified in the figure,
tighten the bolt to the specified torque 78±2 N·m.
(2) In the reverse sequence of the figure, fully loosen
bolts.
(3) According to the sequence specified in the figure,
tighten bolts to the specified torque 20±2 N·m.
(4) Indicate paint markings on the heads of cylinder head
bolts and cylinder head, and tighten bolts at the angle
of 90 degree in the sequence specified in the figure.
(5) When bolts are tightened at the angle of 90 degree
according to the figure, ensure that the paint markings
on the heads of cylinder head bolts and cylinder head
are standing in line.
Caution
1) When the tightening angle is under 90 degree,
the bolt is not sufficiently tightened.
2) When the tightening angle exceeds the
specified value, remove the bolt and repeat
the same procedure beginning with Step 1.
"CAO-RING/FUEL HIGH PRESSURE HOSE
INSTALLATION
1. Apply small quantity of new engine oil on O-ring.
Caution
Do not let engine oil get into the delivery pipe.
2. Install the fuel high pressure pipe to the delivery pipe
rotating in both directions without damaging the O-ring
and check that it rotates smoothly.
1
5427
3869
10
Engine Front
MB991654
Step (4)Step (5)
Paint Marking
90_
Paint Marking
90_

ENGINE -Cylinder Head Gasket11A-33
3. In case of not rotating smoothly, remove the fuel high
pressure hose and insert it to the delivery pipe again
after checking damage of the O-ring since there is a
possibility of O-ring engagement.
4. Tighten fuel high pressure hose mounting bolts to the
specified torque.
Tightening Torque: 5.0±1.0 N·m
"DAOIL RETURN PIPE GASKET INSTALLATION
Gasket should be replaced with a new one, and set the convex
part to the position as shown in the illustration for installation.
NOTE
There is no specific direction indicated for installing the
turbocharger side of the oil return pipe gasket.
Convex part