Subaru Legacy (2005 year). Manual - part 277

ME(H4DOTC)-51

MECHANICAL

Timing Belt

3) Installation of timing belt:
Align the alignment marks on the timing belt with marks on the sprockets in the alphabetical order shown in
the figure. While aligning marks, position the timing belt properly.

CAUTION:
• Disengagement of more than one timing belt tooth may result in interference between valve and
piston.
• Ensure the belt’s rotating direction is correct.

4) Install the belt idlers.

Tightening torque:

39 N

⋅

m (4.0 kgf-m, 28.8 ft-lb)

NOTE:
Make sure that the marks on the timing belt and
sprockets are aligned.

5) After ensuring that the marks on the timing belt
and sprockets are aligned, remove the stopper pin
from tensioner adjuster.

(1)

Arrow mark

(4)

54.5 tooth length

(7)

Install it in the end.

(2)

Timing belt

(5)

51 tooth length

(3)

28 tooth length

(6)

28 tooth length

ME-00089

(1)

(2)

(5)

(6)

(4)

(D)

(A)

(C)

(B)

(E)

(3)

RH-IN

RH-EX

LH-EX

LH-IN

(7)

ME-00090

ME(H4DOTC)-52

MECHANICAL

Timing Belt

6) Install the timing belt guide.

(1) Temporarily tighten the bolts.
(2) Check and adjust the clearance between
timing belt and timing belt guide.

Clearance:

1.0

±

0.5 mm (0.039

±

0.020 in)

(3) Tighten the bolt.

Tightening torque:

9.75 N

⋅

m (1.0 kgf-m, 7.2 ft-lb)

Tightening torque:

6.4 N

⋅

m (0.65 kgf-m, 4.7 ft-lb)

7) Install the timing belt cover.
<Ref. to ME(H4DOTC)-45, INSTALLATION, Tim-
ing Belt Cover.>
8) Install the crank pulley.
<Ref. to ME(H4DOTC)-43, INSTALLATION, Crank
Pulley.>

ME-00091

ME-00730

ME-00731

ME-00732

ME-00095

ME-00727

ME-00728

ME-00729

ME(H4DOTC)-53

MECHANICAL

Timing Belt

9) Install the V-belts. <Ref. to ME(H4DOTC)-40,
INSTALLATION, V-belt.>

C: INSPECTION

1. TIMING BELT

1) Check the timing belt teeth for breaks, cracks or
wear. If any fault is found, replace the timing belt. 
2) Check the condition of the backside of timing
belt. If cracks are found, replace the timing belt.

CAUTION:
• Be careful not to let oil, grease or engine
coolant contact the belt. Remove quickly and
thoroughly if this happens.
• Do not bend the timing belt sharply.

In radial diameter h: 

60 mm (2.36 in) or more

2. AUTOMATIC BELT TENSION ADJUST-
ER

1) Visually check the oil seals for leaks, and rod
ends for abnormal wear and scratches. If neces-
sary, replace the automatic belt tension adjuster
assembly.

NOTE:
Slight traces of oil at rod’s oil seal does not indicate
a problem.
2) Check that the adjuster rod does not move when
a pressure of 294 N (30 kgf, 66 lbf) is applied to it.
This is to check adjuster rod stiffness.
3) If the adjuster rod is not stiff and moves freely
when applying 294 N (30 kgf, 66 lbf), check it using
the following procedures:

(1) Slowly press the adjuster rod down to the
end surface of the cylinder. Repeat this opera-
tion two to three times.
(2) With the adjuster rod moved all the way up,
apply a pressure of 294 N (30 kgf, 66 lbf) to it.
Check the adjuster rod stiffness.

(3) If the adjuster rod is not stiff and moves
down, replace the automatic belt tension adjust-
er assembly with a new one.

CAUTION:
• Always use a vertical type pressing tool to
move the adjuster rod down.
• Do not use a lateral type vise.
• Push the adjuster rod vertically.
• Press-in the push adjuster rod gradually tak-
ing more than three minutes.
• Do not allow press pressure to exceed 9,807
N (1,000 kgf, 2,205 lbf).
• Press the adjuster rod as far as to the end
surface of the cylinder. Do not press the adjust-
er rod into cylinder. Doing so may damage the
cylinder.
4) Measure the amount of rod protrusion beyond
the body. If it is not within specification, replace with
a new one.

Amount of rod protrusion H:

5.7

±

0.5 mm (0.224

±

0.020 in)

3. BELT TENSION PULLEY 

1) Check the mating surfaces of timing belt and
contact point of adjuster rod for abnormal wear or
scratches. Replace the belt tension pulley if faulty.
2) Check the belt tension pulley for smooth rota-
tion. Replace if noise or excessive play occurs.
3) Check the belt tension pulley for grease leakage.

4. BELT IDLER

1) Check the belt idler for smooth rotation. Replace
if noise or excessive play occurs.
2) Check the outer contacting surfaces of idler pul-
ley for abnormal wear and scratches.
3) Check the belt idler for grease leakage.

ME-00099

h

ME-00100

H

ME(H4DOTC)-54

MECHANICAL

Cam Sprocket

17.Cam Sprocket

A: REMOVAL

1) Remove the V-belts. <Ref. to ME(H4DOTC)-40,
REMOVAL, V-belt.>
2) Remove the crank pulley.
<Ref. to ME(H4DOTC)-43, REMOVAL, Crank Pul-
ley.>
3) Remove the timing belt cover.
<Ref. to ME(H4DOTC)-45, REMOVAL, Timing Belt
Cover.>
4) Remove the timing belt.
<Ref. to ME(H4DOTC)-46, REMOVAL, Timing
Belt.>
5) Remove the cam sprocket. To lock the cam-
shaft, use the ST.
ST

499977500

CAM SPROCKET WRENCH

B: INSTALLATION

1) Install the cam sprocket. To lock the camshaft,
use the ST.

Tightening torque:

Tighten to 30 N

⋅

m (3.1 kgf-m, 22.1 ft-lb), and 

then further tighten by 45

°

2) Install the timing belt.
<Ref. to ME(H4DOTC)-48, INSTALLATION, Tim-
ing Belt.>
3) Install the timing belt cover.
<Ref. to ME(H4DOTC)-45, INSTALLATION, Tim-
ing Belt Cover.>
4) Install the crank pulley.
<Ref. to ME(H4DOTC)-43, INSTALLATION, Crank
Pulley.>

5) Install the V-belts. <Ref. to ME(H4DOTC)-40,
INSTALLATION, V-belt.>

C: INSPECTION

1) Check the cam sprocket teeth for abnormal wear
and scratches.
2) Make sure there is no free play between cam
sprocket and key.
3) Check the cam sprocket protrusion used for sen-
sor for damage and contamination of foreign mat-
ter.

ME-02628

ST

ME-02628

ST