1998 MITSUBISHI MONTERO Rocker arms

Accessory Mount Stay Bolt (Montero)
8 mm Bolt .............................................. 17 (23)\
10 mm Bolt ............................................. 36 (49)\
Cooling Fan Bracket (Montero) ............................ 30 (41\
)
Engine Hanger (Montero) .................................. 13 (17\
)
Generator Bolt (Diamante) ................................ 15 (21\
)
Generator Bolt (Montero)
8 mm Bolt .............................................. 15 (21)\
10 mm Bolt ............................................. 38 (51)\
Generator Bracket (Diamante)
8 mm Bolt .............................................. 35 (48)\
10 mm Bolt ............................................. 17 (23)\
Generator Pivot Nut (Diamante) ........................... 32 (44\
)
Tensioner Pulley Nut ..................................... 37 (50)\
Tensioner Bracket Stay Bolt (Montero) .................... 18 (24\
)
Intake Manifold & Fuel
Bracket (Montero) ........................................ 18 (24\
)
ECT Sensor ............................................... 22 (30)\
Intake Manifold Nut ...................................... 15 (21)\
Thermostat Case .......................................... 14 (19)\
Water Inlet Fitting Bolt ................................. 14 (19)\
Water Outlet Fitting Bolt ................................ 14 (19)\
Water Passage (Montero) .................................. 14 (19\
)
Heater Pipe Bolt (Diamante) .............................. 13 (18\
)
Intake Plenum & Throttle Body
Air Intake Fitting Bolt & Nut (Montero) .................. 13 (18\
)
EGR Pipe Bolt ............................................ 13 (18)\
EGR Pipe Flair Nut ....................................... 44 (59)\
EGR Valve Bolt ........................................... 16 (22)\
Intake Manifold Plenum (Diamante) ........................ 13 (18\
)
Intake Manifold Plenum Stay Bolt
8 mm Bolt .............................................. 13 (18)\
10 mm Bolt ............................................. 27 (36)\
Water Outlet Fitting Bracket Bolt ........................ 14 (19)\
Bracket (Diamante) ....................................... 18 (24\
)
Motor Mount Brackets
Bracket
8 mm Bolt .............................................. 16 (22)\
10 mm Bolt ............................................. 30 (41)\
12 mm Bolt ............................................. 55 (75)\
Oil Pan & Oil Pump
Drain Plug ............................................... 30 (40)\
Oil Cooler By-Pass Valve (Montero) ....................... 41 (55\
)
Oil Filter Bolt (Montero) ................................ 15 (21\
)
Oil Filter Bracket
8 mm Bolt .............................................. 18 (24)\
10 mm Bolt ............................................. 30 (40)\
Oil Screen
8 mm Bolt ............................................... 14 (19)\
Plug .................................................... 33 (45)\
Piston & Connection Rod
Connecting Rod Cap Nut ................................... 38 (52)\
Rocker Arms & Camshafts
Distributor Adapter Bolt (Diamante) ...................... 17 (23\
)
Rocker Arm Shaft Bolt .................................... 23 (31)\
Spark Plug ................................................. 18 (25)\
Timing Belt
Auto Tensioner Bolt ...................................... 18 (24)\
Camshaft Sprocket Bolt ................................... 65 (88)\
Idler Pulley Bolt ........................................ 32 (44)\
Tensioner Arm Bolt ....................................... 32 (44)\
Tensioner Pulley Bolt .................................... 36 (49)\
Water Pump Bolt (Montero) ................................ 18 (24\
)

Water Pump Bolt (Diamante)
8 mm Bolt .............................................. 18 (24)\
10 mm Bolt ............................................. 30 (41)\
INCH Lbs. (N.m)
Crankshaft & Drive Plate
Bell Housing ............................................ 79.7 (9)\
Oil Seal Case .......................................... 97.3 (11)\
Rear Plate (Montero) ................................... 97.3 (11\
)
Exhaust Manifold
Heat Shield ........................................... 123.9 (14)\
Oil Level Gauge Guide Bolt ............................ 123.9 (14)\
Generator & Drive Belt
Cooling Fan Bolt (Montero) ............................. 97.3 (11\
)
Cooling Fan Nut (Montero) .............................. 97.3 (11\
)
Timing Indicator Bolt (Montero) ........................ 97.3 (11\
)
Intake Manifold & Fuel
ECT Gauge Sender ....................................... 97.4 (11)\
Fuel Pressure Regulator Bolt ............................ 79.6 (9)\
Fuel Pipe Banjo Bolt .................................... 79.6 (9)\
Injector & Fuel Rail Bolt ............................. 106.2 (12)\
Water Outlet Pipe ..................................... 123.9 (14)\
Intake Plenum & Throttle Body
Ignition Coil Bolt (Montero) ............................ 115 (13\
)
Manifold Differential Pressure (MDP) Sensor ............. 44 (4.9\
)
Throttle Body Bolt ...................................... 106 (12)\
Vacuum Hose Assembly (Diamante) ......................... 88 (9.8\
)
Oil Pan & Oil Pump
Baffle Plate (Montero) ................................. 97.3 (11\
)
Baffle Plate (Diamante) ................................ 97.3 (11\
)
6 mm Bolt ............................................... 53.1 (6)\
8 mm Bolt ............................................... 79.6 (9)\
Oil Pump Cover Bolt (Diamante) ......................... 88.5 (10\
)
Oil Pump Cover Bolt (Montero)
6 mm x 10 mm Bolt .................................... 97.3 (11)\
6 mm x 18 mm Bolt ..................................... 53.1 (6)\
Oil Pressure Gauge Sender .............................. 88.5 (10)\
Oil Pan (Upper) ......................................... 53.1 (6\
)
Oil Pan (Lower) ........................................ 97.3 (11\
)
Oil Pump Case ......................................... 123.9 (14)\
Oil Screen (Montero)
6 mm Bolt ............................................. 53.1 (9)\
Rocker Arms & Camshafts
Rocker Cover Bolt ....................................... 31 (3.5)\
Thrust Case Bolt ...................................... 115.1 (13)\
Timing Belt
Camshaft Position (CMP) Sensor (Montero) ................ 79.6 (\
9)
Crankshaft Position (CKP) Sensor ........................ 79.6 (9\
)
( 1) - Tighten cylinder head bolts in 2 or 3 steps with engine cold.









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ENGINE SPECIFICATIONS
GENERAL SPECIFICATIONS
GENERAL SPECIFICATIONS








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Application Specification
Displacement .................................. 213.4 Cu. In. (3.5L)\
Bore ............................................... 3.6614" (93 mm)\

Stroke ........................................... 3.3779" (85.8 mm)\
Compression Ratio ............................................ 9.0:1
Fuel System .................................................... MFI
Horsepower @ RPM ........................................ 200 @ 5000
Torque Ft. Lbs. @ RPM ................................... 228 @ 3500









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ROCKER ARMS & CAMSHAFT
ROCKER ARMS & CAMSHAFT








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Application In. (mm)\
Camshaft Lobe Height
Montero
Intake
Standard ..................................... 1.4846 (37.710)\
Limit ........................................ 1.4650 (37.210)\
Exhaust
Standard ..................................... 1.4622 (37.140)\
Limit ........................................ 1.4425 (36.640)\
Diamante
Intake
Standard ..................................... 1.4795 (37.580)\
Limit ........................................ 1.4598 (37.080)\
Exhaust
Standard ..................................... 1.4547 (36.950)\
Limit ........................................ 1.4350 (36.450)\
Camshaft Journal Diameter .......................... 1.7689 (44.930)\









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CYLINDER HEAD & VALVES
CYLINDER HEAD & VALVES








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Application Specification
Head Warpage
Standard ........................................ .0012" (.030 mm)\
Limit ........................................... .0079" (.200 mm)\
Maximum Resurface ................................. .0079" (.200 mm)\
Overall Height ................................ 4.7244" (120.000 mm)\
Valve Margin
Intake
Standard ..................................... .0394" (1.000 mm)\
Limit ......................................... .0197" (.500 mm)\
Exhaust
Standard ..................................... .0472" (1.200 mm)\
Limit ......................................... .0276" (.700 mm)\
Valve Height (Montero)
Intake
Standard .................................. 4.4213" (112.300 mm)\
Limit ..................................... 4.4016" (111.800 mm)\
Exhaust
Standard .................................. 4.4924" (114.110 mm)\
Limit ..................................... 4.4728" (113.610 mm)\
Stem Diameter
Intake ......................................... .2362" (6.000 mm)\
Exhaust ........................................ .2362" (6.000 mm)\
Stem to Guide Clearance
Intake
Standard ........................... .0008-.0020" (.020-.050 mm)\
Limit ......................................... .0039" (.100 mm)\

NOTE: Always refer to appropriate engine overhaul article in the
ENGINES section for complete overhaul procedures and
specifications for the vehicle being repaired.
REMOVAL
Remove intake and exhaust manifolds and valve cover. Cylinder
head and camshaft carrier bolts (if equipped), should be removed only
when the engine is cold. On many aluminum cylinder heads, removal
while hot will cause cylinder head warpage. Mark rocker arm or
overhead cam components for location.
Remove rocker arm components or overhead cam components.
Components must be installed in original location. Individual design
rocker arms may utilize shafts, ball-type pedestal mounts or no rocker
arms. For all design types, wire components together and identify
according to the corresponding valve. Remove cylinder head bolts.
Note length and location. Some applications require cylinder head
bolts be removed in proper sequence to prevent cylinder head damage.
See Fig. 1 . Remove cylinder head.
Fig. 1: Typical Cylinder Head Tightening or Loosening Sequence
This Graphic For General Information Only
INSTALLATION
Ensure all surfaces and head bolts are clean. Check that head
bolt holes of cylinder block are clean and dry to prevent block damage
when bolts are tightened. Clean threads with tap to ensure accurate
bolt torque.
Install head gasket on cylinder block. Some manufacturer's
may recommend sealant be applied to head gasket prior to installation.
Note that all holes are aligned. Some gasket applications may be
marked so certain area faces upward. Install cylinder head using care
not to damage head gasket. Ensure cylinder head is fully seated on
cylinder block.
Some applications require head bolts be coated with sealant
prior to installation. This is done if head bolts are exposed to water
passages. Some applications require head bolts be coated with light
coat of engine oil.

Install head bolts. Head bolts should be tightened in proper
steps and sequence to specification. See Fig. 1. Install remaining
components. Tighten all bolts to specification. Adjust valves if
required. See VALVE ADJUSTMENT in this article.
NOTE: Some manufacturers require that head bolts be retightened
after specified amount of operation. This must be done to
prevent head gasket failure.
VALVE ADJUSTMENT
Engine specifications will indicate valve train clearance and
temperature at which adjustment is to be made on most models. In most
cases, adjustment will be made with a cold engine. In some cases, both
a cold and a hot clearance will be given for maintenance convenience.
On some models, adjustment is not required. Rocker arms are
tightened to specification and valve lash is automatically set. On
some models with push rod actuated valve train, adjustment is made at
push rod end of rocker arm while other models do not require
adjustment.
Clearance will be checked between tip of rocker arm and tip
of valve stem in proper sequence using a feeler gauge. Adjustment is
made by rotating adjusting screw until proper clearance is obtained.
Lock nut is then tightened. Engine will be rotated to obtain all valve
adjustments to manufacturer's specifications.
Some models require hydraulic lifter to be bled down and
clearance measured. Different length push rods can be used to obtain
proper clearance. Clearance will be checked between tip of rocker arm
and tip of valve stem in proper sequence using a feeler gauge.
On overhead cam engines designed without rocker arms actuate
valves directly on a cam follower. A hardened, removable disc is
installed between the cam lobe and lifter. Clearance will be checked
between cam heel and adjusting disc in proper sequence using a feeler
gauge. Engine will be rotated to obtain all valve adjustments.
On overhead cam engines designed with rocker arms, adjustment
is made at push rod end of rocker arm. Ensure that the valve to be
adjusted is riding on the heel of the cam on all engines. Clearance
will be checked between tip of rocker arm and tip of valve stem in
proper sequence using a feeler gauge. Adjustment is made by rotating
adjusting screw until proper clearance is obtained. Lock nut is then
tightened. Engine will be rotated to obtain all valve adjustments to
manufacturer's specifications.
CYLINDER HEAD OVERHAUL
* PLEASE READ THIS FIRST *
NOTE: Always refer to appropriate engine overhaul article in the
ENGINES section for complete overhaul procedures and
specifications for the vehicle being repaired.
DISASSEMBLY
Mark valves for location. Using valve spring compressor,
compress valve springs. Remove valve locks. Carefully release spring
compressor. Remove retainer or rotator, valve spring, spring seat and
valve. See Fig. 2.

than .010" (.25 mm) from tip. Chamfer sharp edge of reground valve
tip. Recheck valve stem installed height.
VALVE STEM OIL SEALS
Valve stem oil seals must be installed on valve stem. See
Fig. 2 . Seals are needed due to pressure differential at the ends of
valve guides. Atmospheric pressure above intake guide, combined with
manifold vacuum below guide, causes oil to be drawn into the cylinder.
Exhaust guides also have pressure differential created by
exhaust gas flowing past the guide, creating a low pressure area. This
low pressure area draws oil into the exhaust system.
Replacement (On Vehicle)
Mark rocker arm or overhead cam components for location.
Remove rocker arm components or overhead cam components. Components
must be installed in original location. Remove spark plugs. Valve stem
oil seals may be replaced by holding valves against seats using air
pressure.
Air pressure must be installed in cylinder using an adapter
for spark plug hole. An adapter can be constructed by welding air hose
connection to spark plug body with porcelain removed.
Install adapter in spark plug hole. Apply a minimum of 140
psi (9.8 kg/cm
) to adapter. Air pressure should hold valve closed. If
air pressure does not hold valve closed, check for damaged or bent
valve. Cylinder head must be removed for service.
Using valve spring compressor, compress valve springs. Remove
valve locks. Carefully release spring compressor. Remove retainer or
rotator and valve spring. Remove valve stem oil seal.
If oversized valves have been installed, oversized oil seals
must be used. Coat valve stem with engine oil. Install protective
sleeve over end of valve stem. Install new oil seal over valve stem
and seat on valve guide. Remove protective sleeve. Install spring
seat, valve spring and retainer or rotator. Compress spring and
install valve locks. Remove spring compressor. Ensure valve locks
are fully seated.
Install rocker arms or overhead cam components. Tighten all
bolts to specification. Adjust valves if required. Remove adapter.
Install spark plugs, valve cover and gasket.
VALVE SPRING INSTALLED HEIGHT
Valve spring installed height should be checked during
reassembly. Measure height from lower edge of valve spring to the
upper edge. DO NOT include valve spring seat or retainer. Distance
must be within specifications. If valves and/or seats have been
ground, a valve spring shim may be required to correct spring height.
See Fig. 12 .
Fig. 12: Measuring Valve Spring Installed Height - Typical
This Graphic For General Information Only

ROCKER ARMS & ASSEMBLIES
Rocker Studs
Rocker studs are either threaded or pressed in place.
Threaded studs are removed by locking 2 nuts on the stud. Unscrew the
stud by turning the jam nut. Coat the stud threads with Loctite and
install. Tighten to specification.
Pressed in stud can be removed using a stud puller. Ream the
stud bore to proper specification and press in a new oversize stud.
Pressed in studs are often replaced by cutting threads in the stud
bore to accept a threaded stud.
Rocker Arms & Shafts
Mark rocker arms for location. Remove rocker arm retaining
bolts. Remove rocker arms. Inspect rocker arms, shafts, bushings and
pivot balls (if equipped) for excessive wear. Inspect rocker arms
for wear in valve stem contact area. Measure rocker arm bushing I.D.
Replace bushings if excessively worn.
The rocker arm valve stem contact point can be reground,
using special fixture for valve grinding machine. Remove minimum
amount of material as possible. Ensure all oil passages are clear.
Install rocker arms in original locations. Ensure rocker arm is
properly seated in push rod. Tighten bolts to specification. Adjust
valves if required. See VALVE ADJUSTMENT in this article.
Pushrods
Remove rocker arms. Mark push rods for location. Remove push
rods. Push rods can be steel or aluminum, solid or hollow. Hollow
pushrods must be internally cleaned to ensure oil passage to the
rocker arms is cleaned. Check the pushrod for damage, such as loose
ends on steel tipped aluminum types.
Check push rod for straightness. Roll push rod on a flat
surface. Using feeler gauge, check clearance at center. Replace push
rod if bent. The push rod can also be supported at each end and
rotated. A dial indicator is used to detect bends in the push rod.
Lubricate ends of push rod and install push rod in original
location. Ensure push rod is properly seated in lifter. Install rocker
arm. Tighten bolts to specification. Adjust valves if required. See
VALVE ADJUSTMENT in this article.
LIFTERS
Hydraulic Lifters
Before replacing a hydraulic lifter for noisy operation,
ensure noise is not caused by worn rocker arms or valve tips.
Hydraulic lifter assemblies must be installed in original locations.
Remove the rocker arm assembly and push rod. Mark components for
location. Some applications require intake manifold, or lifter cover
removal. Remove lifter retainer plate (if used). To remove lifters,
use a hydraulic lifter remover or magnet. Different type lifters are
used. See Fig. 13.

ENGINES








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High Oil Improper grade of oil Replace with proper oil
Pressure Oil pressure relief valve Eliminate binding
stuck closed
Oil pressure sender or Replace sender or gauge
gauge faulty









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Noisy Main Inadequate oil supply Check oil delivery to
Bearings main bearings
Excessive main bearing Replace main bearings,
clearance See ENGINES
Excessive crankshaft end Replace crankshaft, See
play ENGINES
Loose flywheel or torque Tighten attaching bolts
converter
Loose or damaged vibration Tighten or replace
damper vibration damper
Crankshaft journals Re-grind crankshaft
out-of-round journals
Excessive belt tension Loosen belt tension









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Noisy Connecting Excessive bearing clearance Replace bearing, See
Rods or missing bearing ENGINES
Crankshaft rod journal Re-grind crankshaft
out-of-round journal
Misaligned connecting rod Remove rod or cap and
or cap realign
Incorrectly tightened rod Remove and re-tighten
bolts rod bolts









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Noisy Pistons Excessive piston-to-bore Install larger pistons,
and Rings clearance See ENGINES
Bore tapered or out-of-round Rebore block
Piston ring broken Replace piston rings,
See ENGINES
Piston pin loose or seized Replace piston pin, See
ENGINES
Connecting rods misaligned Realign connecting rods
Ring side clearance too Replace with larger or
loose or tight smaller rings
Carbon build-up on piston Remove carbon









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Noisy Valve Worn or bent push rods Replace push rods, See
Train ENGINES
Worn rocker arms or bridged Replace push rods, See
pivots ENGINES
Dirt or chips in valve Remove lifters and
lifters remove dirt/chips
Excessive valve lifter Replace valve lifters,
leak-down See ENGINES
Valve lifter face worn Replace valve lifters,
See ENGINES
Broken or cocked valve replace or reposition
springs springs
Too much valve stem-to-guide Replace valve guides,
clearance See ENGINES
Valve bent Replace valve, See
ENGINES
Loose rocker arms Retighten rocker arms,
See ENGINES
Excessive valve seat Reface valve seats, See
run-out ENGINES