WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING. DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR
HANDS NEAR THE PULLEYS, BELTS OR FAN. DO
NOT WEAR LOOSE CLOTHES.
(6) Start the engine, allow to warm, turn engine
off and inspect for leaks. Care must be take to
observe the fuel system warning (Refer to 14 - FUEL
SYSTEM - WARNING).
INSTALLATION - INTERMEDIATE GEAR
NOTE: Refer to appropriate injector servicing proce-
dures for cleaning of injectors and recesses.
(1) Install intermediate gear and bushing. Tighten
bolt to 40N´m (30 lbs.ft.)
(2) Install the intake camshaft (Refer to 9 -
ENGINE/CYLINDER HEAD/CAMSHAFT(S) -
INSTALLATION).
(3) Install exhaust camshaft sprocket, noting
dowel pin alignment. Tighten bolt to 18 N´m (159 lbs.
in.).
WARNING: NO FIRE, FLAMES OR SMOKING. SER-
VICE VEHICLE IN WELL VENTILATED AREA. RISK
OF INJURY FROM INHALING OR SWALLOWING
FUEL. RISK OF INJURY TO EYES AND SKIN FROM
CONTACT WITH FUEL. WEAR PROTECTIVE CLOTH-
ING.
(4) Install high pressure pump (Refer to 14 -
FUEL SYSTEM/FUEL DELIVERY/FUEL INJEC-
TION PUMP - INSTALLATION).
(5) Install top slide rail (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT/CHAIN AND
SPROCKETS - INSTALLATION).
(6) Install cylinder head front cover (Refer to 9 -
ENGINE/CYLINDER HEAD - INSTALLATION).
(7) Install timing chain tensioner with new gasket
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT/CHAIN AND SPROCKETS - INSTALLA-
TION).
NOTE: Inspect basic position of camshaft and reset
if necessary (Refer to 9 - ENGINE/CYLINDER HEAD/
CAMSHAFT(S) - STANDARD PROCEDURE).
(8) Remove camshaft locking pin.
(9) Install cylinder head cover (Refer to 9 -
ENGINE/CYLINDER HEAD/CYLINDER HEAD
COVER(S) - INSTALLATION).
WARNING: NO FIRE, FLAMES OR SMOKING. SER-
VICE VEHICLE IN WELL VENTILATED AREA. RISK
OF INJURY FROM INHALING OR SWALLOWING
FUEL. RISK OF INJURY TO EYES AND SKIN FROMCONTACT WITH FUEL. WEAR PROTECTIVE CLOTH-
ING.
(10) Install fuel high pressure lines and injectors
(Refer to 14 - FUEL SYSTEM/FUEL INJECTION/
FUEL INJECTOR - INSTALLATION).
(11) Install engine cover (Refer to 9 - ENGINE -
INSTALLATION).
(12) Connect negative battery cable.
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING. DO NOT STAND IN A
DIRECT LINE WITH FAN. DO NOT PUT YOUR
HANDS NEAR THE PULLEYS, BELTS OR FAN. DO
NOT WEAR LOOSE CLOTHING.
(13) Start engine and inspect for leaks. Care must
be taken to observe the fuel system warning (Refer to
14 - FUEL SYSTEM - WARNING).
INSTALLATION - TIMING CHAIN TENSIONING
RAIL
NOTE: Carefully clean all mating surfaces with
appropriate solvents to assure that no grease or oil
is present during reassembly.
(1) Install tensioning rail on bearing pin
(2) Install timing cover (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT / CHAIN COVER(S)
- INSTALLATION).
(3) Install oil pan and bolts. Tighten M6 bolts to
9N´m (80 lbs.in.) and M8 bolts to 20N´m (15 lbs. ft.).
(4) Install cylinder head (Refer to 9 - ENGINE/
CYLINDER HEAD - INSTALLATION).
(5) Reconnect negative battery cable.
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING. DO NOT PUT YOUR
HANDS NEAR THE PULLEYS, BELTS OR FAN. DO
NOT WEAR LOOSE CLOTHES.
(6) Start the engine and inspect for leaks. Care
must be taken to observe the fuel system warning
(Refer to 14 - FUEL SYSTEM - WARNING).
ADJUSTMENTS
INSTALLATION - TIMING CHAIN
CAUTION: IT IS ESSENTIAL that the installation pro-
cedure is followed exactly. Failure to do so will
result in severe engine damage.
CAUTION: Cover timing case recesses to prevent
foreign material from entering engine.
VAENGINE 9 - 77
(1) Connect new timing chain, oil hole side up and
old timing chain with the assembly link, the assem-
bly plate and the assembly locking element, and
secure (Fig. 82).
CAUTION: Always install the new timing chain with
the oil holes pointing up. Failure to do so will result
in severe engine damage.
NOTE: Always keep new timing chain meshed with
camshaft sprocket.
CAUTION: DO NOT CRANK ENGINE and DO NOT
ROTATE ENGINE BACKWARD. Engine rotation is
clockwise, as you are looking at the engine. Rotate
engine at crankshaft only.
NOTE: Draw out the end of old timing chain evenly
as it becomes free, to the same extent that new tim-
ing chain is drawn in.
(2) Draw in new timing chain with the oil holes
facing up, by rotating the crankshaft slowly in direc-
tion of rotation of engine. (Fig. 83).(3) Rotate the engine until the ends of the new
timing chain meet and can be connected (Fig. 84).
NOTE: Assembly link is only an assembly aid and
NOT designed for engine running.
Fig. 82 OLD AND NEW TIMING CHAIN UNION
1 - TEMPORARY TIMING CHAIN LINK
2 - SPECIAL TOOL 9525
3 - OLD TIMING CHAIN
4 - NEW TIMING CHAIN
Fig. 83 TIMING CHAIN INSTALLATION
1 - NEW TIMING CHAIN
2 - OLD TIMING CHAIN
Fig. 84 TIMING CHAIN ROTATION COMPLETE
1 - NEW TIMING CHAIN
2 - SPECIAL TOOL #9525
3 - TEMPORARY LINK
4 - OLD TIMING CHAIN
9 - 78 ENGINEVA
(4) Remove assembly locking element, assembly
outer plate and assembly link.
CAUTION: Cover timing case recesses to prevent
foreign material from entering engine.
(5) Insert new riveted link with the oil hole up,
and new middle plate into ends of timing chain using
the guide link to hold the middle plate in position
(Fig. 85).
NOTE: When assembling riveting tool, piece
#9312±7 is secured by a screw and #9312±10 can
move loosely on thrust spindle
(6) Assemble riveting tool by inserting pieces
#9312±7 and #9312±10 (Fig. 86).NOTE: Ensure that the riveted link and riveting tool
are aligned.
(7) Press in new riveted link as far as the stop
(Fig. 87).
(8) Remove guide link and riveting tool to change
inserts.
Fig. 85 INSERTING NEW TIMING CHAIN LINK
1 - GUIDE LINK
2 - NEW LINK
3 - SPECIAL TOOL #9312-1
4 - TOOL INSERT #9312-7
5 - TOOL INSERT #9312-10
6 - THRUST PIN #9312-4
Fig. 86 INSTALLING ASSEMBLY INSERTS INTO
RIVETING TOOL
1 - SPECIAL TOOL #9312-1
2 - SPECIAL TOOL #9312-7 and 9312-10
Fig. 87 PRESSING THE NEW LINK
1 - SPECIAL TOOL #9312-1
2 - GUIDE LINK
3 - SPECIAL TOOL INSERT 9#312-7
4 - SPECIAL TOOL INSERT #9312-10
5 - THRUST SPINDLE #9312-4
VAENGINE 9 - 79
TIMING CHAIN TENSIONER
REMOVAL
(1) Disconnect negative battery cable.
CAUTION: Rotate engine at crankshaft only. DO
NOT rotate the engine with the bolt of the camshaft
sprocket. DO NOT rotate the engine counter clock-
wise.
NOTE: Markings on the camshaft and camshaft
bearing cap must be aligned.
(2) Position piston of number 1 cylinder to ignition
TDC.
(3) Remove intake air duct.
(4) Remove accessory drive belt and idler pulley
above generator (Refer to 7 - COOLING/ACCES-
SORY DRIVE/DRIVE BELTS - REMOVAL).
(5) Remove timing chain tensioner (Fig. 91).
INSTALLATION
NOTE: Carefully clean all mating surfaces with
appropriate solvents to assure that no grease or oil
is present during reassembly.
(1) Install timing chain tensioner with new gasket.
Tighten to 80N´m (59 lbs.ft.).(2) Install idler pulley and accessory drive belt
(Refer to 7 - COOLING/ACCESSORY DRIVE/DRIVE
BELTS - INSTALLATION).
(3) Install intake air duct.
(4) Reconnect negative battery cable.
WARNING: USE EXTREME CAUTION WHEN THE
ENGINE IS OPERATING. DO NOT PUT YOUR
HANDS NEAR THE PULLEYS, BELTS OR FAN. DO
NOT WEAR LOOSE CLOTHES.
(5) Start the engine and inspect for leaks.
Fig. 91 TIMING CHAIN TENSIONER
1 - TIMING CHAIN TENSIONER
2 - TIMING CHAIN TENSIONER SEAL
VAENGINE 9 - 81
OPERATION
Intake air is drawn through the air cleaner and
into the turbocharger compressor housing. Pressur-
ized air from the turbocharger then flows forward
through the charge air cooler located in front of the
radiator. From the charge air cooler the air flows
back into the intake manifold.
DIAGNOSIS AND TESTING - CHARGE AIR
COOLER SYSTEM - LEAKS
NOTE: Slight engine oil pooling in the charge air
inlet hose IS NOT premature turbocharger failure.
Slight pooling is the normal result of the breather
system. Test the air breather tube for normal oper-
ation by referring to the appropriate diagnostic
manual.
Low turbocharger boost pressure and low engine
performance can be caused by leaks in the charge air
cooler or it's plumbing. The following procedure out-
lines how to check for leaks in the charge air cooler
system.
(1) Loosen clamp and remove turbocharger to air
inlet duct rubber sleeve from turbocharger.
(2) Insert Special Tool 8442 Adapter into the rub-
ber sleeve. Tighten existing clamp to 8 N´m (72
in.lbs.).
CAUTION: Do not apply more than 138 kpa (20 psi)
air pressure to the charge air cooler system, sever
damage to the charge air cooler system may occur.
(3) Connect regulated air supply to air fitting on
Special Tool 8442 Adapter. Set air pressure to a Max-
imum of 138 kpa (20 psi).
(4) Using soapy water check the air inlet ducts,
rubber sleeves, charge air cooler and intake manifold
for leaks.
REMOVAL
(1) Remove front bumper.
(2) Remove headlamp assemblies.
(3) Remove front cross member together with front
grille.
(4) Remove left and right radiator trim (Fig. 3).
(5) Disconnect charge air hoses at charge air cooler
(Fig. 3).
(6) Disconnect power steering cooler loop from
charge air cooler (Fig. 3).
(7) Remove charge air cooler from radiator assem-
bly (Fig. 3).
CLEANING
CAUTION: Do not use caustic cleaners to clean the
charge air cooler. Damage to the charge air cooler
will result.
NOTE: If internal debris cannot be removed from
the cooler, the charge air cooler MUST be replaced.
(1) If the engine experiences a turbocharger failure
or any other situation where oil or debris get into the
charge air cooler, the charge air cooler must be
cleaned internally.
(2) Position the charge air cooler so the inlet and
outlet tubes are vertical.
(3) Flush the cooler internally with solvent in the
direction opposite of normal air flow.
(4) Shake the cooler and lightly tap on the end
tanks with a rubber mallet to dislodge trapped
debris.
(5) Continue flushing until all debris or oil are
removed.
(6) Rinse the cooler with hot soapy water to
remove any remaining solvent.
(7) Rinse thoroughly with clean water and blow
dry with compressed air.
Fig. 3 CHARGE AIR COOLER
1 - POWER STEERING COOLER LOOP
2 - CHARGE AIR HOSE
3 - CHARGE AIR COOLER HOSE
4 - CHARGE AIR COOLER
5 - LEFT RADIATOR TRIM PANEL
6 - RIGHT RADIATOR TRIM PANEL
VAEXHAUST SYSTEM 11 - 5
REMOVAL
REMOVAL
NOTE: Capture any fluid spillage and store in an
appropriately marked and suitable containers.
(1) Disconnect the negative battery cable.
(2) Remove the heat shield (Fig. 6).
(3) Separate the front exhaust pipe from the tur-
bocharger (Fig. 6)
(4) Separate the charge air and intake air hoses at
the turbocharger (Fig. 6).
(5) Remove the vacuum line from the turbocharger
vacuum unit (Fig. 6).
(6) Separate the oil supply at the cylinder head
and turbocharger (Fig. 6).
(7) Separate the oil return flow line at the turbo-
charger (Fig. 6).
(8) Remove the turbocharger support bracket (Fig.
6).
(9) Remove turbocharger from exhaust manifold
(Fig. 6).
Fig. 5 TURBOCHARGER VACUUM ROUTING
1 - ENGINE 5 - VACUUM SOLENOID
2 - BRAKE BOOSTER CHECK VALVE 6 - VACUUM RESERVOIR
3 - VACUUM PUMP 7 - ACCESSORY VACUUM JUNCTION
4 - TURBOCHARGER 8 - FILTER
VAEXHAUST SYSTEM 11 - 7
REMOVAL - VACUUM TRANSDUCER
(1) Disconnect the negative battery cable.
(2) Remove the air cleaner housing (Refer to 9 -
ENGINE/AIR INTAKE SYSTEM/AIR CLEANER
HOUSING - REMOVAL).
(3) Disconnect the electrical connector.
(4) Disconnect the vacuum hoses.
(5) Remove the vacuum transducer retaining bolts
and remove vacuum transducer.
INSTALLATION
INSTALLATION
(1) Clean all mating surfaces
(2) Install turbocharger to exhaust manifold.
Tighten bolts to 22 lbs. ft. (20 N´m) (Fig. 6).
NOTE: Slacken the bottom bolt of the turbocharger
support bracket to install bracket stress free.(3) Install turbocharger support bracket. Tighten
bolts to 177 lbs. in. (20 N´m) at engine and 22 lbs. ft.
(30 N´m) at turbocharger (Fig. 6).
(4) Replace gaskets and install oil return line at
turbocharger. Tighten bolt to 80 lbs. in. (9 N´m) (Fig.
6).
NOTE: Counterhold the connection at the turbo-
charger when tightening the oil supply line bolt.
(5) Replace gaskets and install oil supply line at
turbocharger. Tighten bolt to 160 lbs. in. (18 N´m)
(Fig. 6).
(6) Attach turbocharger vacuum line to vacuum
unit (Fig. 6).
(7) Attach air intake and charge air hoses (Fig. 6).
(8) Connect front exhaust pipe to turbocharger.
Tighten flange clamp to 22 lbs.ft. (30 N´m) (Fig. 6).
(9) Install heat shield (Fig. 6).
(10) Connect negative battery cable.
Fig. 6 TURBOCHARGER
1 - TURBOCHARGER 8 - OIL RETURN LINE
2 - OIL SUPPLY LINE 9 - GASKET
3 - O-RING 10 - VACUUM UNIT
4 - FRONT EXHAUST PIPE 11 - CHARGE AIR HOSE
5 - BRACKET 12 - CLAMP
6 - O-RING 13 - AIR INTAKE HOSE
7 - GASKET 14 - HEAT SHIELD
11 - 8 EXHAUST SYSTEMVA
(7) Connect a scan tool, select from Main Menu,
System Select, Engine, System Tests, Fuel Quantity
Test, Engine Cranking Test and follow the screen.
(8) After ten seconds, a maximum of 2.5 ml
(between2&3graduation lines) may be reached in
the inner vials. If the level has exceeded the 2.5 ml,
replace that affected cylinder's injector, clear the
memory using the scan tool, empty the test vials, and
retest.
RUNNING TEST
NOTE: If an injector is found to be out of specifica-
tion, repeat this test procedure after the injector
replacement. Hydraulic flow will take the path of
least resistance and multiple failures may be identi-
fied. Engine temperature must be above 80É C
(176ÉF) to perform the running test.
Perform this test with the engine at operating tem-
perature. This test will assist in determining a defec-
tive or internally leaking injector(s) is present by
measuring the amount of fuel return.
(1) Turn the ignition off.
(2) Remove the engine cover (Refer to 9 - ENGINE
- REMOVAL).
(3) Disconnect the fuel return hoses at the top of
the injectors.
(4) Pinch off the fuel return line at the banjo bolt
fitting of the fuel rail.
(5) Install the test vials onto the injectors and
secure with the return hose clips (Fig. 2).
(6) Connect a scan tool, select from Main Menu,
System Select, Engine, System Tests, Fuel Quantity
Test, Engine Running Test and follow the screen.
(7) After ten seconds, a maximum of five gradua-
tion lines (40 ml) of the large test vial may bereached. If the level has exceeded the five graduation
line, replace that affected cylinder's injector, clear the
memory using the scan tool, empty the test vials, and
retest.
STANDARD PROCEDURE
STANDARD PROCEDURES - CLEANING FUEL
SYSTEM COMPONENTS
CAUTION: Cleanliness cannot be overemphasized
when handling or replacing diesel fuel system com-
ponents. This especially includes the fuel injectors,
high-pressure fuel lines, fuel rail, and fuel injection
pump. Very tight tolerances are used with these
parts. Dirt contamination could cause rapid part
wear and possible plugging of fuel injector nozzle
tip holes. This in turn could lead to possible engine
misfire. Always wash/clean any fuel system compo-
nent thoroughly before disassembly and then air
dry. DO NOT wire brush injector nozzles when
cleaning. Cap or cover any open part after disas-
sembly. Before assembly, examine each part for
dirt, grease or other contaminants and clean if nec-
essary. When installing new parts, lubricate them
with clean engine oil or clean diesel fuel only.
STANDARD PROCEDURES - DRAINING WATER
FROM FUEL FILTER
Connect a hose to the Water in Fuel (WIF) drain
and place it in a clearly marked and suitable con-
tainer. Open the WIF drain by turning counterclock-
wise (Fig. 3). Turn the ignition key on for 20 seconds
(Refer to low pressure fuel pump operation). Repeat
the procedure until all water is removed, close the
drain and remove the hose.
Fig. 2 Special Tool # 9545
1 - SPECIAL TOOL #9545
VAFUEL SYSTEM 14 - 3