engine SUBARU TRIBECA 2009 1.G Service Workshop Manual

LU(H6DO)-10
Oil Pump Relief Valve
LUBRICATION
5. Oil Pump Relief Valve
A: REMOVAL
1. REAR CHAIN COVER SIDE
Oil pump relief valve is integrated into oil pump cov-
er as one unit; therefore, refer to “Oil Pump” for re-
moval procedure. REMOVAL, Oil Pump.>
2. OIL PAN UPPER SIDE
1) Remove the oil pan. MOVAL, Oil Pan and Strainer.>
2) Remove the plug, relief valve spring and relief
valve.
B: INSTALLATION
1. REAR CHAIN COVER SIDE
Oil pump relief valve is integrated into oil pump cov-
er as one unit; therefore, refer to “Oil Pump” for in-
stallation procedure. INSTALLATION, Oil Pump.>
2. OIL PAN UPPER SIDE
1) Install the relief valve, relief valve spring and
plug.
NOTE:
Apply engine oil to the relief valve.
Tightening torque:
T: 44 N·m (4.5 kgf-m, 33 ft-lb)
2) Install the oil pan. STALLATION, Oil Pan and Strainer.>
C: INSPECTION
Check the worn shaft hole of oil pump relief valve
case, clogged oil passage, crank and other parts
for faults.
(1) Relief valve
(2) Relief valve spring
(3) Plug
(1)
LU-02033
(2)
(3)
LU-02034
T

LU(H6DO)-11
Oil Pan and Strainer
LUBRICATION
6. Oil Pan and Strainer
A: REMOVAL
NOTE:
Before removing the oil pan upper, remove the en-
gine from vehicle. MOVAL, Engine Assembly.> 62, REMOVAL, Cylinder Block.>
1) Set the vehicle on a lift.
2) Lift-up the vehicle.
3) Remove the under cover.
4) Drain the engine oil. PLACEMENT, Engine Oil.>
5) Insert the oil pan cutter blade between oil pan
upper and oil pan lower.
CAUTION:
Do not use a screwdriver or similar tool in place
of oil pan cutter.
6) Remove the oil pan lower.
7) Remove the oil strainer.
B: INSTALLATION
CAUTION:
Before installing the oil pan, wipe clean the
mating surface of oil pan lower and oil pan up-
per.
1) Install the oil strainer onto oil pan upper.
NOTE:
Replace the O-ring with a new one.
Tightening torque:
6.4 N·m (0.65 kgf-m, 4.7 ft-lb)
2) Apply liquid gasket to the mating surfaces, and
install the oil pan.
Liquid gasket
THREE BOND 1280B (Part No. K0877YA018)
Applying liquid gasket diameter
5.0±1.0 mm (0.197 ± 0.039 in)
LU-00123
LU-02108
LU-02108
LU-00125

LU(H6DO)-12
Oil Pan and Strainer
LUBRICATION
3) Tighten the oil pan lower installing bolts in the
numerical order as shown in the figure.
Tightening torque:
6.4 N·m (0.65 kgf-m, 4.7 ft-lb)
4) Install the under cover.
5) Refill the engine oil. SPECTION, Engine Oil.>
C: INSPECTION
Visually check that the oil pan, oil strainer and oil
strainer stay are not damaged.
(1)(2)
(3)
(4)
(5)
(6)
(7)(8)(9)
(10)
(11)
(12)
(13)
(14)
(15)
LU-00126

LU(H6DO)-14
Engine Oil Filter
LUBRICATION
8. Engine Oil Filter
A: REMOVAL
1) Lift-up the vehicle.
2) Drain the engine oil. PLACEMENT, Engine Oil.>
3) Remove the service hole cover clip.
4) Rotate the service hole cover in the direction of
the arrow.
5) Remove the oil filter using ST.
ST 4985447000 OIL FILTER WRENCH
B: INSTALLATION
CAUTION:
Do not tighten excessively, or oil may leak.
1) Clean the oil filter installing surface of oil cooler.
2) Obtain a new oil filter and apply a thin coat of en-
gine oil to the seal rubber.
3) Install the oil filter turning it by hand, being care-
ful not to damage the seal rubber.
4) Tighten more (approx. 3/4 turn) after the seal
rubber contacts the oil cooler. When using a torque
wrench, tighten to 14 N·m (1.4 kgf-m, 10.3 ft-lb).
5) Install the service hole cover.
6) Lower the vehicle.
7) Refill the engine oil. SPECTION, Engine Oil.>
C: INSPECTION
1) After installing the oil filter, run the engine and
make sure that no oil is leaking around seal rubber.
NOTE:
The filter element and filter case are permanently
jointed; therefore, interior cleaning is not neces-
sary.
2) Check the engine oil level. 7, INSPECTION, Engine Oil.>
PM-00281
PM-00282
PM-00283

LU(H6DO)-15
Oil Cooler
LUBRICATION
9. Oil Cooler
A: REMOVAL
1) Lift-up the vehicle.
2) Remove the under cover.
3) Drain engine coolant.
COOLANT, REPLACEMENT, Engine Coolant.>
4) Drain the engine oil. PLACEMENT, Engine Oil.>
5) Remove the bolts which hold the water pipe to
engine.
6) Disconnect the water hose from oil cooler.
7) Remove the oil filter using the ST. LU(H6DO)-14, REMOVAL, Engine Oil Filter.>
ST 498547000 OIL FILTER WRENCH
NOTE:
Set a container under the vehicle.
8) Remove the oil cooler connector and remove oil
cooler.
B: INSTALLATION
1) Install the oil cooler to oil pan upper with oil cool-
er connector.
Tightening torque:
T: 54 N·m (5.5 kgf-m, 40 ft-lb)
NOTE:
Use new O-rings.
2) Install the oil filter. STALLATION, Engine Oil Filter.>
LU-00132
LU-00133
LU-00134
(A) Oil cooler connector
(B) Oil cooler
(C) O-ring
(A) Oil cooler connector
(B) Oil cooler
(C) O-ring
(A)
(B)(C)
LU-00135
(A)
(B)(C)
T
LU-00136
LU-00134

LU(H6DO)-16
Oil Cooler
LUBRICATION
3) Connect the water hose.
4) Install the water pipe onto engine.
Tightening torque:
6.4 N·m (0.65 kgf-m, 4.7 ft-lb)
5) Refill the engine oil. PLACEMENT, Engine Oil.>
6) Fill engine coolant. FILLING OF ENGINE COOLANT, REPLACE-
MENT, Engine Coolant.>
7) Check the engine oil level. 7, INSPECTION, Engine Oil.>
C: INSPECTION
1) Check that coolant passages are not clogged
using an compressed air.
2) Check that the oil pan upper and O-ring installing
surface of oil filter are not damaged.
LU-00133
LU-00132

LU(H6DO)-17
General Diagnostics Table
LUBRICATION
10.General Diagnostics Table
A: INSPECTION
Before performing diagnostics, make sure that the engine oil level is correct and no oil leakage exists.
Symptom Possible cause Corrective action
1. Warning light remains
on.
1) Oil pressure switch
failure
Cracked diaphragm or oil leakage within switch Replace.
Broken spring or seized contacts Replace.
2) Low oil pressure
Clogging of oil filter Replace.
Malfunction of oil by-pass valve in oil filter Clean or replace.
Malfunction of oil relief valve in oil pump Clean or replace.
Clogged oil passage Clean.
Excessive tip clearance and side clearance of oil
pump rotor and gearReplace.
Clogged oil strainer or broken pipe Clean or replace.
3) No oil pressure
Insufficient engine oil Replenish.
Broken pipe of oil strainer Replace.
Stuck oil pump rotor Replace.
2. Warning light does
not turn on.
1) Malfunction of combination meter Replace.
2) Poor contact of switch contact points Replace.
3) Disconnection of wiring Repair.
3. Warning light flickers
momentarily.
1) Poor contact of terminals Repair.
2) Defective wiring harness Repair.
3) Low oil pressure
Check for the same
possible causes as
listed 1) — 2).

ME(H6DO)-2
General Description
MECHANICAL
1. General Description
A: SPECIFICATION
NOTE:
OS: Oversize US: undersize
Engine
Cylinder arrangementHorizontally opposed, liquid cooled,
6-cylinder, 4-stroke gasoline engine
Va l ve s y s t e m m e c h a n i s mChain driven, double overhead camshaft,
4-valve/cylinder
Inside diameter×stroke mm (in) 89.2 × 80 (3.512 × 3.150)
Displacementcm3 (cu in)3,000 (183)
Compression ratio10.7
Compression pressure (350 rpm and fully open
throttle):kPa (kgf/cm2, psi)1,275 — 1,471 (13.0 — 15.0, 185 — 213)
Number of piston rings Pressure ring: 2, Oil ring: 1
Intake valve timing
Min. advanceOpen BTDC 47°
Close ABDC 23°
Max. retardOpen ATDC 3°
Close ABDC 73°
Exhaust valve timingOpen BBDC 60°
Close ATDC 6°
Va l ve c l e a r a n c e m m ( i n )Intake0.20 +0.04 -0.06 (0.0079 +0.0016 -0.0024)
EXHAUST 0.35±0.05 (0.0138±0.020)
Idle rpm [“P” or “N” range] rpmNo load 650±50
A/C ON 770±50
Ignition order 1 → 6 →3 → 2 → 5 → 4
Ignition timing BTDC/rpm 15°±8°/650

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