Subaru Legacy IV (2008 year). Manual - part 62

ME(H4SO)-44

Timing Belt

MECHANICAL

15.Timing Belt

A: REMOVAL

NOTE:
Perform the work with the engine installed to body
when replacing a single part. For operation proce-
dures, refer to “Timing Belt” in the PM section.
<Ref. to PM-20, Timing Belt.>

1. TIMING BELT

1) Remove the V-belts. <Ref. to ME(H4SO)-38,
REMOVAL, V-belt.>
2) Remove the crank pulley. <Ref. to ME(H4SO)-
41, REMOVAL, Crank Pulley.>
3) Remove the timing belt cover. <Ref. to
ME(H4SO)-43, REMOVAL, Timing Belt Cover.>
4) Remove the timing belt guide. (MT model)

5) If the alignment mark or arrow mark (which indi-
cates the direction of rotation) on timing belt fade
away, put new marks before removing the timing
belt as shown in procedures below.

(1) Use the ST to turn crankshaft. Align the
mark (a) of sprocket to the mark (b) of oil pump,
and then ensure the right side cam sprocket
mark (c), cam cap and cylinder head matching
surface (d) or left side cam sprocket mark (e),
timing belt cover notch (f) are properly adjusted.

499987500

CRANKSHAFT SOCKET

(2) Using white paint, put an alignment mark or
an arrow mark on timing belts in relation to the
crank sprocket and cam sprockets.

: 46.8 teeth

: 43.7 teeth

6) Remove the belt idler (A).

ME-00065

ME-00231

(a)

(b)

ME-03952

(f)

(e)

(d)

(c)

ME-02967

ME-03948

ME(H4SO)-45

Timing Belt

MECHANICAL

7) Remove the belt idler No. 2 (B).

8) Remove the timing belt.

2. BELT IDLER AND AUTOMATIC BELT
TENSION ADJUSTER ASSEMBLY

1) Remove the belt idler.

2) Remove the automatic belt tension adjuster as-
sembly.

B: INSTALLATION

1. AUTOMATIC BELT TENSION ADJUSTER
ASSEMBLY AND BELT IDLER

1) Prepare for installation of the automatic belt ten-
sion adjuster assembly.

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 three minutes or more.
• Do not allow press pressure to exceed 9,807
N (1,000 kgf, 2,205 lb).
• Push in the adjuster rod to the end face of the
cylinder. However, do not push in the adjuster
rod below the end face of the cylinder. Doing so
may damage the cylinder.
• Do not release the press pressure until stop-
per pin is completely inserted.

(1) Attach the automatic belt tension adjuster
assembly to vertical pressing tool.
(2) Slowly push in the adjuster rod with a pres-
sure of 165 N (16.8 kgf, 37.1 lb) or more until
the adjuster rod is aligned with the stopper pin
hole in the cylinder.

(3) With a 2 mm (0.08 in) dia. stopper pin or a 2
mm (0.08 in) (nominal) dia. hex wrench inserted
into the stopper pin hole in cylinder, secure the
adjuster rod.

ME-03953

(B)

(A)

ME-03949

ME-03449

ME-00238

ME-00239

ME-00350

ME(H4SO)-46

Timing Belt

MECHANICAL

2) Install the automatic belt tension adjuster as-
sembly.

Tightening torque:

39 N·m (4.0 kgf-m, 28.8 ft-lb)

3) Install the belt idlers.

Tightening torque:

39 N·m (4.0 kgf-m, 28.8 ft-lb)

2. TIMING BELT

1) Prepare for installation of the automatic belt ten-
sion adjuster assembly. <Ref. to ME(H4SO)-45,
AUTOMATIC BELT TENSION ADJUSTER AS-
SEMBLY AND BELT IDLER, INSTALLATION,
Timing Belt.>
2) Align the mark (A) on crank sprocket with the
mark (B) on oil pump.

3) Turn the cam sprockets No. 1 and No. 2 using
ST so that their alignment marks (A) come to top
positions.
ST

18231AA010

CAM SPROCKET WRENCH

NOTE:
CAM SPROCKET WRENCH (499207100) can
also be used.

4) While aligning the alignment mark (B) on timing
belt with the mark (A) on sprockets, position the
timing belt properly.

5) Install the belt idler No. 2 (B).

Tightening torque:

39 N·m (4.0 kgf-m, 28.8 ft-lb)

6) Install the belt idler (A).

Tightening torque:

39 N·m (4.0 kgf-m, 28.8 ft-lb)

ME-00241

ME-03449

(A)

ME-03975

(B)

ME-03950

(A)

ME-03951

(A)

(B)

ME-03953

(B)

(A)

ME(H4SO)-47

Timing Belt

MECHANICAL

7) After ensuring the marks on timing belt and cam-
shaft sprockets are aligned, remove the stopper pin
from belt tension adjuster.

8) Install the timing belt guide. (MT model)

(1) Temporarily tighten the bolts mounting the
timing belt guide.

(2) Check and adjust the clearance between
timing belt and timing belt guide by using thick-
ness gauge.

Clearance:

1.0

0.5 mm (0.039

0.020 in)

(3) Tighten the bolts mounting the timing belt
guide.

Tightening torque:

9.75 N·m (1.0 kgf-m, 7.2 ft-lb)

9) Install the timing belt cover. <Ref. to ME(H4SO)-
43, INSTALLATION, Timing Belt Cover.>
10) Install the crank pulley. <Ref. to ME(H4SO)-41,
INSTALLATION, Crank Pulley.>
11) Install the V-belts. <Ref. to ME(H4SO)-39, IN-
STALLATION, 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 on the back surface of the
timing belt. If cracks are found, replace the timing
belt.

CAUTION:
• Be careful not to let oil, grease or coolant
contact the timing 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

ME-00245

ME-00230

ME-00246

ME-00247

ME-00248

Content .. 60 61 62 63 ..