2009 SUBARU TRIBECA engine

ME(H6DO)-14
General Description
MECHANICAL
8. ENGINE MOUNTING
C: CAUTION
•Wear work clothing, including a cap, protective
goggles and protective shoes during operation.
•Remove contamination including dirt and corro-
sion before removal, installation or disassembly.
•Keep the disassembled parts in order and pro-
tect them from dust and dirt.
•Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary re-
moval, installation, disassembly and replacement.
•Be careful not to burn yourself, because each
part on the vehicle is hot after running.
•Be sure to tighten fasteners including bolts and
nuts to the specified torque.
•Place shop jacks or rigid racks at the specified
points.
•Before disconnecting connectors of sensors or
units, be sure to disconnect the ground cable from
the battery.
•All parts should be thoroughly cleaned, paying
special attention to engine oil passages, pistons
and bearings.
•Rotating parts and sliding parts such as piston,
bearing and gear should be coated with oil prior to
assembly.
•Be careful not to let oil, grease or coolant contact
the timing belt, clutch disc and flywheel.
•All removed parts, if to be reused, should be re-
installed in the original positions and directions.
•Bolts, nuts and washers should be replaced with
new ones as required.
•Even if necessary inspections have been made
in advance, proceed with assembly work while
making rechecks.
•Remove or install the engine in an area where
chain hoists, lifting devices, etc. are available for
ready use.
•Be sure not to damage coated surfaces of body
panels with tools, or not to stain seats and windows
with coolant or oil. Place a cover over fender, as re-
quired, for protection.
•Prior to starting work, prepare the following:
Service tools, clean cloth, containers to catch cool-
ant and oil, wire ropes, chain hoist, transmission
jacks, etc.
•Lift-up or lower the vehicle when necessary.
Make sure to support the correct positions.
(1) Front cushion rubber Tightening torque: N·m (kgf-m, ft-lb)
T1: 35 (3.6, 25.8)
T2: 75 (7.6, 55.3)
(1)
T2
T1
T1T2
ME-00445

ME(H6DO)-15
General Description
MECHANICAL
D: PREPARATION TOOL
1. SPECIAL TOOL
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
18250AA010 CYLINDER
HEAD TABLE
•Used for replacing valve guides.
•Used for removing and installing valve spring.
18232AA000 ENGINE STAND Used for disassembling and assembling engine.
498497100 CRANKSHAFT
STOPPER
Used for stopping rotation of flywheel or drive
plate when loosening / tightening crank pulley
bolt.
18254AA000 PISTON GUIDE Used for installing piston in cylinder.
ST18250AA010
ST18232AA000
ST-498497100
ST18254AA000

ME(H6DO)-19
General Description
MECHANICAL
18482AA010 CARTRIDGE Troubleshooting for electrical system.
22771AA030 SUBARU
SELECT MONI-
TOR KIT
Tr o u b l e s h o o t i n g f o r e l e c t r i c a l s y s t e m .
18233AA000 PISTON PIN
SNAP RING PLI-
ERS
Used for removing and installing snap ring of pis-
ton pin.
498277200 STOPPER SET Used for installing automatic transmission assem-
bly to engine.
42099AE000 CONNECTOR
REMOVER
Used for disconnecting quick connector of the
engine compartment.
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
ST18482AA010
ST22771AA030
ST18233AA000
ST-498277200
ST42099AE000

ME(H6DO)-20
General Description
MECHANICAL
2. GENERAL TOOL
E: PROCEDURE
It is possible to conduct the following service procedures with engine on vehicle, however, the procedures
described in this section are based on the condition that the engine is removed from vehicle.
•Camshaft
•Cylinder head
18471AA000 FUEL PIPE
ADAPTER
Used for measuring fuel pressure.
42075AG690 FUEL HOSE Used for measuring fuel pressure.
This is a genuine Subaru part.
TOOL NAME REMARKS
Compression gauge Used for measuring compression.
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS

ME(H6DO)-21
Compression
MECHANICAL
2. Compression
A: INSPECTION
CAUTION:
After warming-up, engine becomes very hot. Be
careful not to burn yourself during measure-
ment.
1) After warming-up the engine, turn the ignition
switch to OFF.
2) Make sure that the battery is fully charged.
3) Release the fuel pressure.
PRESSURE, PROCEDURE, Fuel.>
4) Remove all the spark plugs. 4, REMOVAL, Spark Plug.>
5) Check the starter motor for satisfactory perfor-
mance and operation.
6) Hold the compression gauge tightly against the
spark plug hole.
NOTE:
When using a screw-in type compression gauge,
the screw (put into cylinder head spark plug hole)
should be less than 18 mm (0.71 in) long.
7) Fully open the throttle valve.
8) Crank the engine by means of the starter motor,
and read the maximum value on the gauge when
the pointer is steady.
9) Perform at least two measurements per cylinder,
and make sure that the values are correct.
Compression (350 rpm and fully open throttle):
Standard:
1,275 — 1,471 kPa (13.0 — 1.50 kgf/cm2,
185 — 213 psi)
Service limit:
1,128 kPa (11.5 kgf/cm2, 164 psi)
ME-00446

ME(H6DO)-22
Idle Speed
MECHANICAL
3. Idle Speed
A: INSPECTION
1) Before checking the idle speed, check the fol-
lowing item:
(1) Check the air cleaner element is free from
clogging, ignition timing is correct, spark plugs
are in good condition, and hoses are connected
properly.
(2) Check the malfunction indicator light does
not illuminate.
2) Idle the engine.
3) Stop the engine, and turn the ignition switch to
OFF.
4) Insert the cartridge to Subaru Select Monitor.
5) Connect the Subaru Select Monitor to data link
connector.
6) Turn the ignition switch to ON and Subaru Select
Monitor switch to ON.
7) Select {Each System Check} in Main Menu.
8) Select {Engine} in Selection Menu.
9) Select {Current Data Display & Save} in Engine
Control System Diagnosis.
10) Select {Data Display} in Data Display Menu.
11) Start the engine, and read the engine idle
speed.
12) Check the idle speed when no-loaded. (Head-
light, heater fan, rear defroster, radiator fan, A/C
and etc. are OFF)
Idle speed [No load and gears in neutral]:
650±50 rpm
13) Check the idle speed when loaded. (Turn the A/
C switch to “ON” and operate the compressor for at
least one minute before measurement.)
Idle speed [A/C ON and gears in neutral]:
770±50 rpm
NOTE:
Idle speed cannot be adjusted manually, because
the idle speed is automatically adjusted. If the pre-
scribed idle speed cannot be maintained, refer to
General On-board Diagnosis Table under “Engine
Control System”. sic Diagnostic Procedure.>

ME(H6DO)-23
Ignition Timing
MECHANICAL
4. Ignition Timing
A: INSPECTION
CAUTION:
After warming-up, engine becomes very hot. Be
careful not to burn yourself at measurement.
1) Before checking the ignition timing, check the
following item:
(1) Check the air cleaner element is free from
clogging, spark plugs are in good condition, and
hoses are connected properly.
(2) Check the malfunction indicator light does
not illuminate.
2) Idle the engine.
3) Stop the engine, and turn the ignition switch to
OFF.
4) Insert the cartridge to Subaru Select Monitor.
5) Connect the Subaru Select Monitor to data link
connector.
6) Turn the ignition switch to ON and Subaru Select
Monitor switch to ON.
7) Select {Each System Check} in Main Menu.
8) Select {Engine} in Selection Menu.
9) Select {Current Data Display & Save} in Engine
Control System Diagnosis.
10) Select {Data Display} in Data Display Menu.
11) Start the engine and check the ignition timing at
idle speed.
Ignition timing [BTDC/rpm]:
15°±8°/650
If the timing is not correct, check the ignition control
system. Refer to Engine Control System. EN(H6DO)(diag)-2, Basic Diagnostic Procedure.>

ME(H6DO)-24
Intake Manifold Vacuum
MECHANICAL
5. Intake Manifold Vacuum
A: INSPECTION
1) Idle the engine.
2) Disconnect the brake vacuum hose from intake
manifold, and then install the vacuum gauge.
3) Keep the engine at idle speed and read the vac-
uum gauge indication.
By observing the gauge needle movement, internal
condition of the engine can be diagnosed as de-
scribed below.
Vacuum pressure (at idling, A/C OFF):
–60.0 kPa ( –450 mmHg, –17.72 inHg) or less
ME-02655
Diagnosis of engine condition by measurement of intake manifold vacuum
Va c u u m g a u g e i n d i c a t i o n Po s s i bl e e n g i n e c o n d i t i o n
1. Needle is steady but lower than normal position. This ten-
dency becomes more evident as engine temperature rises.
Air leakage around intake manifold gasket, disconnection or
damage of vacuum hose
2. Needle intermittently drops to position lower than normal
position.
Leakage around cylinder
3. Needle drops suddenly and intermittently from normal posi-
tion.
Sticky valve
4. When engine speed is gradually increased, needle begins to
vibrate rapidly at certain speed, and then vibration increases as
engine speed increases.
Weak or broken valve spr ings
5. Needle vibrates above and below normal position in narrow
range.
Defective ignition system or throttle chamber idle adjustment