Subaru Legacy III (2000-2003 year). Manual - part 257

ME(H6DO)-16

MECHANICAL

GENERAL DESCRIPTION

499587200

CRANKSHAFT OIL 
SEAL INSTALLER

• Used for installing crankshaft oil seal.
• Used with CRANKSHAFT OIL SEAL GUIDE 
(499597100).

499597100

CRANKSHAFT OIL 
SEAL GUIDE

• Used for installing crankshaft oil seal.
• Used with CRANKSHAFT OIL SEAL 
INSTALLER (499587200).

499718000

VALVE SPRING 
REMOVER

Used for removing and installing valve spring.

18251AA000

VALVE GUIDE 
ADJUSTER

Used for installing valve guides.

499765700

VALVE GUIDE 
REMOVER

Used for removing valve guides.

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

ST-499587200

ST-499597100

ST-499718000

ST18251AA000 

ST-499765700

ME(H6DO)-17

MECHANICAL

GENERAL DESCRIPTION

499765900

VALVE GUIDE 
REAMER

Used for reaming valve guides.

499977100

CRANK PULLEY 
WRENCH

Used for stopping rotation of crankshaft pulley 
when loosening and tightening crankshaft pulley 
bolts.

18252AA000

CRANKSHAFT 
SOCKET

Used for rotating crankshaft.

498547000

OIL FILTER 
WRENCH

Used for removing and installing oil filter.

24082AA210

(Newly adopted tool)

CARTRIDGE

Troubleshooting for electrical systems.

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

ST-499765900

ST-499977100

ST18252AA000

ST-498547000

ST24082AA210

ME(H6DO)-18

MECHANICAL

GENERAL DESCRIPTION

2. GENERAL PURPOSE TOOLS

E: PROCEDURE

It is possible to conduct the following service proce-
dures with engine on the vehicle, however, the pro-
cedures described in this section are based on the
condition that the engine is removed from the vehi-
cle.

• Camshaft
• Cylinder Head

22771AA020

SELECT MONITOR 
KIT

Troubleshooting for electrical systems.
• English:
22771AA020 (With printer)
22771AA030 (Without printer)

18329AA000

SHIM REPLACER 
ASSY

Used for correct valve clearance.

A: 18330AA010

LIFTER

If 498187200 SHIM REPLACER ASSY (H4) tool 
is available, it is commonly used for H6 by par-
tially replacing the following parts:
• LIFTER (H4) 

→

 LIFTER (H6) A: 18330AA010

• SLIDER (H4) 

→

 SLIDER (H6) B: 18351AA000

B: 18351AA000

SLIDER

18233AA000

PISTON PIN CIR-
CLIP PLIERS

Used for removing piston pin circlip.

498277200

STOPPER SET

Used for installing automatic transmission 
assembly to engine.

TOOL NAME

REMARKS

Compression gauge

Used for measuring compression.

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

ST22771AA020

ST18329AA000 

( B )

( A )

ST18233AA000 

ST-498277200

ME(H6DO)-19

MECHANICAL

COMPRESSION

2. Compression

A: INSPECTION

CAUTION:
After warming-up, engine becomes very hot. Be 
careful not to burn  yourself during measure-
ment.
1) After warming-up the engine, turn ignition switch
to OFF.
2) Make sure that the battery is fully charged.
3) Release fuel pressure. <Ref. to FU(H6DO)-50,
RELEASING OF FUEL PRESSURE, OPERA-
TION, Fuel.>
4) Remove all the spark plugs. <Ref. to IG(H6DO)-
4, REMOVAL, Spark Plug.>
5) Check the starter motor for satisfactory perfor-
mance and  operation.
6) Hold the compression gauge tight against the
spark plug hole.

CAUTION:
When using a screw-in type compression 
gauge, the screw (put into  cylinder head spark 
plug hole) should be less than 18 mm (0.71 in)  
long.
7) Fully open throttle valve.
8) Crank the engine by means of the starter motor,
and read the  maximum value on the gauge when
the pointer is steady.

9) Perform at least two measurements per cylinder,
and make sure  that the values are correct.

Compression (350 rpm and fully open throttle):

Standard;

1,275 — 1,471 kPa (13.0 — 15.0 kg/cm

2

, 185 

— 213 psi)

Limit;

1,128 kPa (11.5 kg/cm

2

, 164 psi)

ME-00446