The 4B11 (2.0 L) engine is an in-line four-cylinder
engine. The cylinder numbers are assigned as
1-2-3-4 from the front of the engine (timing chain
side). The firing order is 1-3-4-2.

ENGINE DIAGNOSIS

M1111000700392

ITEM

SPECIFICATION

Type

In-line DOHC

Number of cylinders

Bore mm (in)

86 (3.39)

Stroke mm (in)

86 (3.39)

Total displacement cm

(cu. in)

1,998 (121.9)

Compression ratio

9.0

Firing order

1-3-4-2

Valve timing

Intake valve

Opens (BTDC)

10° − 35°

Closes (ABDC)

62° − 37°

Exhaust valve

Opens (BBDC)

44° − 9°

Closes (ATDC)

0° − 35°

SYMPTOM

PROBABLE CAUSE

REMEDY

Compression is too
low

Blown cylinder head gasket

Replace the gasket.

Worn or damaged piston rings

Replace the rings.

Worn piston or cylinder

Repair or replace the piston and/or the
cylinder block.

Worn or damaged valve seat

Repair or replace the valve and/or the
seat ring

Drop in engine oil
pressure

Engine oil level is too low

Check the engine oil level.

Malfunction of engine oil pressure switch

Replace the engine oil pressure switch.

Clogged oil filter

Install a new filter.

Worn oil pump gears or cover

Replace the gears and/or the cover.

Thin or diluted engine oil

Change the engine oil to the correct
viscosity.

Stuck (opened) oil relief valve

Repair the relief valve.

Excessive bearing clearance

Replace the bearings.

Engine oil pressure
too high

Stuck (closed) oil relief valve

Repair the relief valve.

Noisy valves

Incorrect valve clearance

Adjust valve clearance

Thin or diluted engine oil (low engine oil
pressure)

Change the engine oil.

Worn or damaged valve stem or valve
guide

Replace the valve and/or the guide.

SERVICE SPECIFICATIONS

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ENGINE MECHANICAL

11A-3

SERVICE SPECIFICATIONS

M1112000301914

SEALANTS

M1112000502063

Connecting rod
noise/main bearing
noise

Insufficient oil supply

Check the engine oil level.

Thin or diluted engine oil

Change the engine oil.

Excessive bearing clearance

Replace the bearings.

SYMPTOM

PROBABLE CAUSE

REMEDY

Item

Standard value

Limit

Drive belt tension

Vibration frequency Hz
(Reference)

98 − 124

−

Tension N (lb) (Reference) 248 − 400 (56 −

90)

−

Valve clearance (at cold) mm (in)

Intake valve

0.20 ± 0.03

(0.008 ± 0.0012)

−

Exhaust valve

0.30 ± 0.03

(0.012 ± 0.0012)

−

Basic ignition timing at idle

5° BTDC ± 3°

−

Actual ignition timing at curb idle

Approximately
10° BTDC

−

CO contents %

0.5 or less

−

HC contents ppm

100 or less

−

Curb idle speed r/min

700 ± 100

−

Compression pressure (200 r/min) kPa (psi)

1,090 (158)

Minimum 750
(109)

Compression pressure difference of all cylinder kPa (psi)

−

100 (14)

Intake manifold vacuum at curb idle kPa (in Hg)

−

Minimum 60 (18)

Item

Specified sealant

Rocker cover (matching area of the cylinder head
and the timing chain case assembly)

Three bond 1217G (Mitsubishi Genuine Part
No.1000A923), Three bond 1227D, LOCTITE 5900 or
equivalent

Engine oil pan

Three bond 1217G (Mitsubishi Genuine Part
No.1000A923), Three bond 1227D, Three bond 1207F
(Mitsubishi Genuine Part No.1000A992), LOCTITE
5971, LOCTITE 5970, LOCTITE 5900 or equivalent

Flywheel bolt

Three bond 1324 or exact equivalent

Crankshaft rear oil seal case

Three bond 1227D, LOCTITE 5971 or equivalent

Cylinder head gasket (matching area of the cylinder
block and the cylinder head)

Three bond 1217G (Mitsubishi Genuine Part
No.1000A923), LOCTITE 5900 or equivalent

Timing chain case assembly

SPECIAL TOOLS

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ENGINE MECHANICAL

11A-4

SPECIAL TOOLS

M1112000602640

Tool

Tool number and name

Supersession

Application

MB992080
Belt tension meter set

a: MB992081

Belt tension meter

b: MB992082

Mic assembly

Tool not available

Drive belt tension
(frequency) measurement

MB991958
Scan tool (M.U.T.-III sub
assembly)

a: MB991824

Vehicle communication
interface (V.C.I.)

b: MB991827

M.U.T.-III USB cable

c: MB991910

M.U.T.-III main harness A
(Vehicles with CAN
communication system)

d: MB991911

M.U.T.-III main harness B
(Vehicles without CAN
communication system)

e: MB991914

M.U.T.-III main harness C
(for Chrysler models only)

f: MB991825

M.U.T.-III adapter harness

g: MB991826

M.U.T.-III trigger harness

MB991824-KIT
NOTE: MB991826
M.U.T.-III Trigger
Harness is not
necessary when
pushing V.C.I.
ENTER key.

CAUTION

For vehicles with CAN
communication, use
M.U.T.-III main harness A
to send simulated vehicle
speed. If you connect
M.U.T.-III main harness B
instead, the CAN
communication does not
function correctly.

• Standard ignition timing

check

• Idle speed check

B992080

MB991910

MB991826

MB991958

MB991911

MB991914

MB991824

MB991827

MB991825

DO NOT USE

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