EM-208
< REMOVAL AND INSTALLATION >[MR18DE]
ENGINE ASSEMBLY
Always use the support point specified for lifting.
Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for unavoid-
able reasons, support at the rear axle jacking point with a transmission jack or similar tool before
starting work, in preparation for the backward shift of center of gravity.
For supporting points for lifting and jacking point at rear axle, refer to GI-48, "
Garage Jack and
Safety Stand and 2-Pole Lift".
REMOVAL
Remove the engine and the transaxle assembly from the vehicle downward. Separate the engine and the tran-
saxle.
1. Remove engine undercover
2. Drain engine coolant from radiator. Refer to CO-35, "
Changing Engine Coolant".
CAUTION:
Perform this step when the engine is cold.
Do not spill engine coolant on drive belt.
3. Remove front fender protector (RH and LH); Refer to EXT-22, "
Removal and Installation".
4. Remove exhaust front tube; Refer to EX-10, "
Component".
5. Remove drive shafts (LH and RH) from steering knuckle. Refer to FA X - 7 , "
Removal and Installation".
6. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to EM-207, "
Compo-
nent".
7. Remove rear torque rod (1).
8. Remove hood assembly. Refer to DLK-214, "
Removal and Installation".
9. Remove cowl top cover and cowl top extension assembly. Refer to EXT-20, "
Removal and Installation".
10. Release fuel pressure. Refer to EC-1035, "
Inspection".
11. Remove battery and battery tray; Refer to PG-6, "
Removal and Installation".
12. Remove drive belt; Refer to EM-142, "
Component".
13. Remove air duct and air cleaner case assembly; Refer to EM-154
.
14. Remove cooling fan assembly.
15. Remove radiator hose (upper and lower). Refer to CO-40, "
Component".
16. Disconnect all connections of engine harness around the engine mounting insulator (LH), and then tem-
porarily secure the engine harness into the engine side.
CAUTION:
Protect connectors using a resin bag to protect against foreign materials during the operation.
17. Disconnect fuel feed hose at engine side. Refer to EM-162, "
Component".
18. Disconnect heater hoses, and install plugs them to prevent engine coolant from draining. Refer to CO-47,
"Component".
19. Disconnect control cable from transaxle. Refer to TM-674, "
Exploded View".
20. Remove ground cable at transaxle side.
21. Remove ground cable between front cover and vehicle.
22. Remove generator. Refer to CHG-29, "
Removal and Installation".
23. Remove A/C compressor with piping connected from the engine. Temporarily secure it on the vehicle side
with a rope to avoid putting load on it. Refer to HA-32, "
Removal and Installation of Compressor -
MR18DE".
LBIA0460E
EM-210
< REMOVAL AND INSTALLATION >[MR18DE]
ENGINE ASSEMBLY
When installation directions are specified, install parts according to the directions. Refer to EM-207, "Com-
ponent".
Prior to installing the upper torque rod, apply a light coat of silicone
lubricant (A) to the washer facing side of the bushing inner tube as
shown.
NOTE:
Apply silicone lubricant (A) by dabbing the outward facing tube
surface with a sponge or suitable tool.
Do not apply excess lubricant.
Make sure that each mounting insulator is seated properly, and tighten nuts and bolts.
Tighten engine mounting insulator (RH) bolts in the numerical
order shown.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.
Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to LU-15, "
Inspection", CO-35, "Inspection".
Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, check again for fuel leakage at connection points.
Run engine to check for unusual noise and vibration.
Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids includ-
ing engine oil and engine coolant.
Bleed air from lines and hoses of applicable lines, such as in cooling system.
After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle fluid, power steering fluid, brake fluid, etc.: Vehicle front
LBIA0470E
: Vehicle front
WBIA0785E
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —
EM-214
< DISASSEMBLY AND ASSEMBLY >[MR18DE]
ENGINE UNIT
16. Heat piston to 60° to 70°C (140° to 158°F) using a suitable tool
(A).
17. Push out piston pin using a suitable tool of an outer diameter
approximately 18 mm (0.71 in).
18. Loosen main bearing cap bolts in reverse order as shown, and
remove them.
NOTE:
Before loosening main bearing cap bolts, measure crankshaft
end play. Refer to EM-219, "
Inspection After Disassembly".
19. Remove main bearing caps.
Tap main bearing caps lightly using a suitable tool for removal.
CAUTION:
Be careful not to damage the mounting surface.
20. Remove crankshaft.
CAUTION:
Be careful not to damage or deform signal plate (1)
mounted on rear end of crankshaft (A).
When setting crankshaft on a flat floor surface, use a
block of wood to avoid interference between signal plate
and the floor surface.
Never remove signal plate unless it is necessary to do so.
21. Pull rear oil seal out from rear end of crankshaft.
22. Remove main bearings and thrust bearings from cylinder block
and main bearing caps.
CAUTION:
Identify installation positions, and store them without mix-
ing them up.
ASSEMBLY
1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to
remove any foreign material.
CAUTION:
Use a goggles to protect your eye.
PBIC3231J
PBIC0262E
: Engine front
PBIC3235J
PBIC3234J
ENGINE UNIT
EM-223
< DISASSEMBLY AND ASSEMBLY >[MR18DE]
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Measure the outer diameter of piston pin with a micrometer (A).
Connecting Rod Bushing Oil Clearance
(Connecting rod bushing oil clearance) = (Connecting rod bushing inner diameter) – (Piston pin outer diame-
ter)
If the measured value is out of the standard, replace connecting rod assembly and/or piston and piston pin
assembly.
If replacing piston and piston pin assembly, refer to "PISTON TO PISTON PIN OIL CLEARANCE".
If replacing connecting rod assembly, refer to "Connecting Rod Bushing Oil Clearance" to select connecting
rod bearing.
CYLINDER BLOCK TOP SURFACE DISTORTION
Using a scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon, or
other contamination.
CAUTION:
Be careful not to allow gasket flakes to enter engine oil or engine coolant passages.
Measure the distortion on the cylinder block upper face at some
different points in six directions with a straight edge (A) and feeler
gauge (B).
If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER
Install main bearing cap without main bearings installed, and tighten main bearing cap bolts to the specified
torque. Refer to EM-212, "
Disassembly and Assembly" for the tightening procedure.
Measure the inner diameter of main bearing housing with a bore gauge.
Measure the position shown [5 mm (0.20 in)] backward from main
bearing housing front side in the 2 directions as shown. The
smaller one is the measured value.
If out of the standard, replace cylinder block and main bearing
caps assembly.
NOTE:
Main bearing caps cannot be replaced as a single, because it is machined together with cylinder block. Standard: 19.989 - 19.995 mm (0.7870 - 0.7872 in)
PBIC3266J
Standard : 0.005 - 0.023 mm (0.0002 - 0.0009 in)
Limit : 0.03 mm (0.0012 in)
Limit: 0.1 mm (0.004 in)
PBIC3250J
1 : Cylinder block
2 : Main bearing cap
: Engine front
Standard: 55.997 - 56.017 mm (2.2046 - 2.2054 in)
PBIC4005E
EM-252
< PRECAUTION >[K9K]
PRECAUTIONS
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.
Precaution for Drain CoolantINFOID:0000000001381450
Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000001381451
Before starting work, make sure no fire or spark producing items are in the work area.
Release fuel pressure before disassembly.
After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and DisassemblyINFOID:0000000001381452
When instructed to use special service tools, use the specified tools. Always be careful to work safely, avoid
forceful or uninstructed operations.
Exercise maximum care to avoid damage to mating or sliding surfaces.
Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.
Mark and arrange disassembly parts in an organized way for easy troubleshooting and re-assembly.
When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified.
Precaution for Inspection, Repair and ReplacementINFOID:0000000001381453
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000001381454
Use torque wrench to tighten bolts or nuts to specified value.
When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly same as specified.
Replace with new gasket, packing, oil seal or O-ring.
Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction
and blockage.
Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assemble, spread the oil on sliding surfaces well.
Release air within route when refilling after draining coolant.
Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped).
Then make sure that there are no leaks at fuel line connections.
After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for
leakage.
Parts Requiring Angular TighteningINFOID:0000000001381455
Use an angle wrench for the final tightening of the following engine parts.
- Cylinder head bolts
- Lower cylinder block bolts
- Connecting rod cap bolts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular
tightening)
Do not use a torque value for final tightening.
The torque value for these parts are for a preliminary step.
Ensure thread and seat surfaces are clean and coated with engine oil.
PRECAUTIONS
EM-253
< PRECAUTION >[K9K]
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Precaution for Liquid GasketINFOID:0000000001381456
REMOVAL OF LIQUID GASKET
After removing the mounting bolts and nuts, separate the mating
surface using a seal cutter and remove the liquid gasket.
CAUTION:
Be careful not to damage the mating surfaces.
In areas where the cutter is difficult to use, use a plastic hammer to
lightly tap the liquid gasket applied area.
CAUTION:
If for some unavoidable reason a tool such as a flat-bladed
screwdriver is used, be careful not to damage the mating sur-
faces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old liquid gasket adhering to the
gasket application surface and the mating surface.
Remove the liquid gasket completely from the groove of the
gasket application surface, mounting bolts and bolt holes.
2. Wipe the gasket application surface and the mating surface with
white gasoline (lighting and heating use) to remove adhering
moisture, grease and foreign materials.
3. Attach the liquid gasket to the tube presser.
Use Genuine Liquid Gasket or equivalent.
4. Apply the liquid gasket without breaks to the specified location
with the specified dimensions.
If there is a groove for the liquid gasket application, apply the
gasket to the groove.
As for the bolt holes, normally apply the gasket inside the
holes. If specified, it should be applied outside the holes. Make
sure to read the instruction in this manual.
Within five minutes of gasket application, install the mating
component.
If the liquid gasket protrudes, wipe it off immediately.
Do not retighten after the installation.
After 30 minutes or more have passed from the installation, fill
the engine oil and coolant.
CAUTION:
If there are instructions in this manual, observe them.
Precaution for Diesel EquipmentINFOID:0000000001381457
CLEANLINESS
CLEANLINESS INSTRUCTIONS WHICH MUST BE FOLLOWED WHEN WORKING ON THE HIGH PRES-
SURE DIRECT INJECTION SYSTEM
Risks relating to contamination
PBIC0275E
PBIC0003E
EMA0622D
SEM159F
EM-256
< PRECAUTION >[K9K]
PRECAUTIONS
SPECIAL FEATURES
CAUTION:
The engine must not operate with:
- Diesel engine fuel containing more than 10% diester,
- Petrol, even in tiny quantities.
The system can inject the diesel into the engine at a pressure up to 1400 bars. Before carrying out
any work, check that the injector rail is not under pressure and that the fuel temperature is not too
high.
You must respect the cleaning and safety advice specified in this document for any work on the high
pressure injection system.
Removal of the interior of the pump and injectors is prohibited. Only the flow actuator, the fuel tem-
perature sensor and the venturi can be replaced.
For safety reasons, it is strictly forbidden to slacken a injection tube union when the engine is run-
ning.
It is not possible to remove the pressure sensor from the fuel rail because this may cause circuit
contamination malfunctions. If the pressure sensor fails, the pressure sensor, the rail and the five
injection tubes must be replaced.
It is strictly forbidden to remove any high pressure supply pump pulley marked number 070 575. If
the pump is being replaced, the pulley must be replaced.
It is forbidden to repair the wiring connecting the knock sensor (accelerometer) and the CKP sensor
(engine speed sensor). If the wiring should fail, it has to be replaced with new wiring.
Applying 12 volts directly to any component in the system is prohibited.
Ultrasonic carbon removal and cleaning are prohibited.
Never start the engine without the battery being connected correctly.
It is essential to replace all the disconnected air inlet plastic pipes.
INSTRUCTIONS FOR INJECTION TUBES
CAUTION:
All the injection tube removed must be systematically replaced along with the clips.
TIGHTENING THE INJECTION TUBES
NOTE:
fit the pump/rail pipe before the rail/injector pipes.
Rail-pump pipe
Undo the rail,
Grease the threads of the injection tube nuts,
Insert the injection tube olive into the taper of the high pressure pump outlet,
Insert the injection tube olive into the taper of the high pressure rail inlet.
Move the nut into position by hand, on the rail side then the pump side,
Tighten the rail,
Tighten the injection tube nuts on the rail side then on the pump side.
Rail/injector pipes
Undo the rail,
Grease the threads of the injection tube nuts,
Insert the injection tube olive into the taper of the high pressure injector inlet,
Insert the injection tube olive into the taper of the high pressure rail outlet,
Move the nuts into position by hand, on the injector side then the rail side,
Tighten the rail,
Ensure that the new clip, supplied with the new injection tube, is fitted,
Tighten the nuts of the injection tubes on the injector side first and then on the fuel rail side.
NOTE:
Before fitting a new injection tube, move back the nuts on the pipe then lightly lubricate the nut
threads with the oil from the sachet provided in the parts kit.
CHECKING SEALING AFTER REPAIR
CAUTION:
After any operation, check that there are no diesel leaks.
Reprime the circuit using the priming pump.
Start the engine and allow to warm up at idle speed, visually inspecting for any fuel leaks.
Apply tracing fluid around the high pressure connections of the pipe that has been replaced.
Once the engine coolant temperature is above 50°C and provided there are no malfunctions present, carry
out a road test, taking the engine speed up to 4000 rpm at least once to check that there are no leaks.
Perform a visual inspection after the road test to make sure that there are no high pressure leaks.
Clean off the tracing fluid.
EM-264
< ON-VEHICLE MAINTENANCE >[K9K]
DRIVE BELTS
4. Remove drive belt.
Turn drive belt auto-tensioner adjusting bolt clockwise to
release drive belt tension.
INSTALLATION
1. Install the drive belt.
CAUTION:
Make sure drive belt is correctly engaged with the pulley
groove.
Check for oil and coolant on drive belt and each pulley
groove.
Certain drive belts have five teeth whereas the air condi-
tioning compressor pulley, power-assisted steering pump
pulley, and generator pulley all have six teeth.In this case,
it is essential to check that inner tooth (O) of the pulleys
remains free when fitting the drive belt.
Never turn the engine in the opposite direction to its nor-
mal operating direction.
Use a brush to remove any deposits from the crankshaft
pulley V grooves.
2. Release drive belt auto-tensioner, and apply tension to drive belt.
3. Turn crankshaft pulley clockwise several times to equalize tension between each pulley.
MBIB0353E
MBIB0516E