Page 1868 of 2453

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
Page 1880 of 2453

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
Page 1891 of 2453
ME(H6DO)-25
Engine Oil Pressure
MECHANICAL
6. Engine Oil Pressure
A: INSPECTION
1) Remove the oil pressure switch from cylinder
block.
Pressure Switch.>
2) Connect the oil pressure gauge hose to cylinder
block.
3) Connect the ground cable to the battery.
4) Start the engine, and measure the oil pressure.
OIL PRESSURE (at oil temperature of 80°C
(176°F)):
Standard:
135 kPa (1.4 kgf/cm2, 20 psi) or more (at
600 rpm)
500 kPa (5.1 kgf/cm2, 73 psi) or more (at
5,000 rpm)
CAUTION:
•If the oil pressure is out of specification,
check oil pump, oil filter and lubrication line.
Diagnostics Table.>
•If the oil pressure warning light is turned ON
and oil pressure is in specification, replace the
oil pressure switch.
SPECTION, General Diagnostics Table.>
5) After measuring the oil pressure, install the oil
pressure switch.
LATION, Oil Pressure Switch.>
Tightening torque:
25 N·m (2.5 kgf-m, 18 ft-lb)
Page 1893 of 2453

ME(H6DO)-27
Valve Clearance
MECHANICAL
8. Valve Clearance
A: INSPECTION
Inspection and adjustment of valve clearance
should be performed while engine is cold.
1) Set the vehicle on a lift.
2) Remove the collector cover.
3) Disconnect the ground cable from battery.
4) Lift-up the vehicle.
5) Remove the under cover.
6) Lower the vehicle.
7) When inspecting RH side cylinders:
(1) Remove the air intake duct and air cleaner
case.
take Duct.>
Air Cleaner Case.>
(2) Remove the fuel tank protector (RH).
(3) Disconnect the connector of oil pressure
switch.
(4) Remove the ignition coil.
IG(H6DO)-7, REMOVAL, Ignition Coil & Ignitor
Assembly.>
(5) Remove the rocker cover (RH).
8) When inspecting LH side cylinders:
(1) Disconnect the battery cable, and then re-
move the battery and battery carrier.
(2) Disconnect the PCV hose and blow-by hose
from rocker cover (LH).
(3) Remove the fuel pipe protector (LH).
(4) Remove the ignition coil.
IG(H6DO)-7, REMOVAL, Ignition Coil & Ignitor
Assembly.>
(5) Remove the rocker cover (LH).
9) Turn the crankshaft clockwise until the cam is
set to position shown in the figure.
FU-02119
ME-00460
(1) Valve clearance (Intake side)
(2) Valve clearance (Exhaust side)
(3) High lift cam
(4) Low lift cam
FU-02117
ME-02565
(4)(3)(3)(4)
(1)
(2)
(1)
(2)
(23 )(23 )
Page 1901 of 2453

ME(H6DO)-35
Engine Assembly
MECHANICAL
29) Disconnect the fuel delivery hose and evapora-
tion hose.
(1) Disconnect the connector of fuel pipe by
pushing the ST in the direction of arrow.
ST 42099AE000 CONNECTOR REMOVER
(2) Remove the clamp, and disconnect the
evaporation hose from the pipe.
CAUTION:
•Collect fuel from the hose into container.
•Disconnect the hose with its end wrapped
with cloth to prevent fuel from splashing.
30) Support the engine with a lifting device and
wire ropes.
31) Support the transmission with a garage jack.
CAUTION:
Doing this is very important because the trans-
mission lowers for its own weight. This work is
also of great importance for facilitating reinstal-
lation.
CAUTION:
Before removing the engine away from trans-
mission, check to be sure no work has been
overlooked.
32) Separation of engine and transmission:
(1) Remove the starter.
REMOVAL, Starter.>
(2) Remove the bolts which hold upper side of
transmission to engine.
33) Install the ST to converter case.
ST 498277200 STOPPER SET
34) Remove the engine from vehicle.
(1) Slightly raise the engine.
(2) Raise the transmission with garage jack.
(3) Move the engine horizontally until main shaft
is withdrawn from clutch cover.
(4) Slowly move the engine away from engine
compartment.
NOTE:
Be careful not to damage adjacent parts or body
panels with crank pulley, oil level gauge, etc.
35) Remove the front cushion rubbers.
(A) Transmission
(B) Garage jack
(A)
(B)
ME-00490
ME-02661
ST
ME-00492
Page 1902 of 2453

ME(H6DO)-36
Engine Assembly
MECHANICAL
B: INSTALLATION
1) Install the front cushion rubbers.
Tightening torque:
35 N·m (3.6 kgf-m, 25.8 ft-lb)
2) Position the engine in engine compartment and
align it with transmission.
NOTE:
Be careful not to damage adjacent parts or body
panels with crank pulley, oil level gauge, etc.
3) Tighten the bolts which hold upper side of trans-
mission to engine.
Tightening torque:
50 N·m (5.1 kgf-m, 37 ft-lb)
4) Remove the lifting device and wire ropes.
5) Remove the garage jack.
6) Install the pitching stopper.
Tightening torque:
T1: 50 N·m (5.1 kgf-m, 37 ft-lb)
T2: 58 N·m (5.9 kgf-m, 42.8 ft-lb)
7) Remove the ST from converter case.
NOTE:
Be careful not to drop the ST into the converter
case when removing the ST.
ST 498277200 STOPPER SET
8) Install the starter.
STALLATION, Starter.>
9) Install the torque converter clutch to drive plate.
(1) Tighten the bolts which hold torque convert-
er clutch to drive plate.
(2) Tighten other bolts while rotating the engine
using socket wrench.
Tightening torque:
25 N·m (2.5 kgf-m, 18 ft-lb)
(3) Install the service hole plug to prevent for-
eign matter from being mixed.
10) Lift-up the vehicle.
11) Tighten the bolts and nuts which hold lower
side of the transmission to engine.
Tightening torque:
50 N·m (5.1 kgf-m, 37 ft-lb)
ME-02661
T2
T1
ME-02447
(A) Service hole plug
(A)
ME-02445
ME-02662
Page 1906 of 2453

ME(H6DO)-40
Preparation for Overhaul
MECHANICAL
12.Preparation for Overhaul
A: REMOVAL
1) Remove the engine assembly from the body.
sembly.>
2) Set the engine on ST.
ST 18232AA000 ENGINE STAND
3) Before servicing overhaul, remove the sensor,
pipe and hose that installed to engine.
(1) Remove the intake manifold.
FU(H6DO)-12, REMOVAL, Intake Manifold.>
(2) Remove the generator.
19, REMOVAL, Generator.>
(3) Remove the A/C compressor.
33, REMOVAL, Compressor.>
(4) Disconnect the water pipe and hose.
(5) Disconnect the engine harness.
(6) Remove the spark plug.
4, REMOVAL, Spark Plug.>
(7) Remove the camshaft position sensor.
Position Sensor.>
(8) Remove the crankshaft position sensor.
Position Sensor.>
(9) Remove the knock sensor.
FU(H6DO)-20, REMOVAL, Knock Sensor.>
(10) Remove the engine coolant temperature
sensor.
gine Coolant Temperature Sensor.>
(11) Remove the oil pressure switch.
LU(H6DO)-13, REMOVAL, Oil Pressure
Switch.>
(12) Remove the oil filter.
14, REMOVAL, Engine Oil Filter.>
(13) Remove the oil cooler.
15, REMOVAL, Oil Cooler.>
STME-02448
Page 1907 of 2453
ME(H6DO)-41
Crank Pulley
MECHANICAL
13.Crank Pulley
A: REMOVAL
1) Remove the crank pulley cover.
2) Remove the crank pulley bolt. To lock the crank-
shaft, use ST.
ST 499977100 CRANK PULLEY WRENCH
3) Remove the crank pulley.
B: INSTALLATION
1) Install the crank pulley.
2) Install the crank pulley bolt. To lock the crank-
shaft, use ST.
ST 499977100 CRANK PULLEY WRENCH
(1) Clean the crank pulley thread using com-
pressed air.
(2) Apply engine oil to the crank pulley bolt seat
and thread.
(3) Tighten the crank pulley bolts.
Tightening torque:
178 N·m (18.1 kgf-m, 131 ft-lb)
3) Install the crank pulley cover.
NOTE:
Assemble the O-ring to crank pulley cover.
Tightening torque:
6.4 N·m (0.65 kgf-m, 4.7 ft-lb)
C: INSPECTION
1) Check the crank pulley cover for oil and air leak-
age.
2) Check the crank pulley for looseness.
ME-02028
ME-00497
ME-00497
ME-02028