Subaru Legacy (2005 year). Service manual — part 402
ME(H6DO)-83
MECHANICAL
Piston
26.Piston
A: SPECIFICATION
Refer to “Cylinder Block” for removal and installa-
tion procedures of pistons. <Ref. to ME(H6DO)-65,
REMOVAL, Cylinder Block.> <Ref. to ME(H6DO)-
67, INSTALLATION, Cylinder Block.>
ME(H6DO)-84
MECHANICAL
Connecting Rod
27.Connecting Rod
A: SPECIFICATION
Refer to “Cylinder Block” for removal and installa-
tion procedures of connecting rod.
<Ref. to ME(H6DO)-65, REMOVAL, Cylinder
Block.> <Ref. to ME(H6DO)-67, INSTALLATION,
Cylinder Block.>
ME(H6DO)-85
MECHANICAL
Crankshaft
28.Crankshaft
A: SPECIFICATION
Refer to “Cylinder Block” for removal and installa-
tion procedures of crankshaft. <Ref. to ME(H6DO)-
65, REMOVAL, Cylinder Block.> <Ref. to
ME(H6DO)-67, INSTALLATION, Cylinder Block.>
ME(H6DO)-86
MECHANICAL
Engine Trouble in General
29.Engine Trouble in General
A: INSPECTION
NOTE:
“RANK” shown in the chart refers to the possibility of the cause of trouble in order (“Very often” to “Rarely”)
A — Very often
B — Sometimes
C — Rarely
Symptom
Problem parts, etc.
Possible cause
Rank
1. Engine does not start.
1) Starter does not turn.
Starter
Defective battery-to-starter harness
B
Defective starter switch
C
Defective inhibitor switch or neutral position switch
C
Defective starter
B
Battery
Poor terminal connection
A
Run-down battery
A
Defective charging system
B
Friction
Seizure of crankshaft and connecting rod bearing
C
Seized camshaft
C
Seized or stuck piston and cylinder
C
2) Initial combustion does
not occur.
Starter
Defective starter
C
Engine control system <Ref. to EN(H6DO)(diag)-2, Basic Diagnostic Procedure.>
A
Fuel line
Defective fuel pump and relay
A
Lack of or insufficient fuel
B
Chain
Trouble
B
Defective timing
B
Compression
Incorrect valve clearance
C
Loosened spark plug or defective gasket
C
Loosened cylinder head bolt or defective gasket
C
Improper valve sealing
C
Defective valve stem
C
Worn or broken valve spring
B
Worn or stuck piston rings, cylinder and piston
C
Incorrect valve timing
B
Improper engine oil (low viscosity)
B
Trouble of tappet
C
Trouble of tappet. In case noise occurs with valve mov-
ing. Or the harness involved to oil switching solenoid
valve, variable valve lift diagnosis oil pressure switch
and variable valve lift has trouble in a past.
B
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