Subaru Legacy IV (2008 year). Manual - part 480

ME(H6DO)-46

Timing Chain Assembly

MECHANICAL

15.Timing Chain Assembly

A: REMOVAL

NOTE:
When replacing the single part, perform the work
with the engine installed to body.
1) Remove the V-belts. <Ref. to ME(H6DO)-42,
REMOVAL, V-belt.>
2) Remove the crank pulley. <Ref. to ME(H6DO)-
43, REMOVAL, Crank Pulley.>
3) Remove the front chain cover. <Ref. to
ME(H6DO)-44, REMOVAL, Front Chain Cover.>
4) Remove the chain tensioner (RH).

NOTE:
Be careful not to let the plunger (A) pops out.

5) Remove the chain guide (RH: between cams).

6) Remove the chain guide (RH).
7) Remove the chain tensioner lever (RH).

8) Remove the timing chain (RH).

9) Remove the chain tensioner (LH).

NOTE:
Be careful not to let the plunger pops out.

10) Remove the chain tensioner lever (LH).

11) Remove the chain guide (LH: between cams).

12) Remove the chain guide (LH).

(A) Chain guide (RH)

(B) Chain tensioner lever (RH)

(A)

ME-00501

ME-02032

ME-02033

(A)

(B)

ME-02034

ME-02035

ME-02036

ME-02037

ME(H6DO)-47

Timing Chain Assembly

MECHANICAL

13) Remove the chain guide (center).

14) Remove the idler sprocket (upper).

15) Remove the timing chain (LH).
16) Remove the idler sprocket (lower).

B: INSTALLATION

NOTE:
• Be careful that the foreign matter is not into or
onto assembled component during installation.
• Apply engine oil to the chain guide, chain ten-
sioner lever and idler sprocket when installing.
1) Prepare to attach the chain tensioner.

(1) Insert the screw, spring pin and tension rod
into tensioner body.
(2) While depressing the tensioner onto rubber
mat, twist it to shorten tension rod. Then insert
the thin pin into the hole between tension rod
and tension body to keep it.

NOTE:
Work on the rubber mat or other anti-skid materials.

2) Using the ST, align the “Top mark” on crank
sprocket to 9 o’clock position as shown in the fig-
ure.
ST

18252AA000

CRANKSHAFT SOCKET

3) Align the key groove on exhaust cam sprocket to
12 o’clock position as shown in the figure.

ME-02038

ME-02039

ME-00510

ME-00511

ME-02040

ME-02041

ME(H6DO)-48

Timing Chain Assembly

MECHANICAL

4) Align the intake cam sprocket as shown in the
figure.

5) Turn the crank sprocket clockwise, align the
“Top mark” to 12 o’clock position. (Piston #1 is in
TDC position)

NOTE:
Do not rotate the crank shaft and cam sprocket be-
fore completing the installation of timing chain.
6) Install the idler sprocket (lower).

Tightening torque:

69 N·m (7.0 kgf-m, 50.9 ft-lb)

7) Install the timing chain (LH).

(1) Align the timing mark (B) on the crank
sprocket with mark (A) on the timing chain (LH).

(2) Install the timing chain (LH) to the idler
sprocket (lower), water pump, exhaust cam
sprocket (LH) and intake cam sprocket (LH) in
this order.

NOTE:
Check that the mark on timing chain (A) and cam
sprocket (B) is aligned as same as aligned on crank
sprocket.

(3) Install the idler sprocket (upper).

Tightening torque:

69 N·m (7.0 kgf-m, 50.9 ft-lb)

(A) Top mark

(B) 40°

(C) 15°

(A) Gold

(B) Mark

(B)

(A)

LH

RH

(C)

ME-02456

ME-00510

(A)

(B)

ME-00515

(A) Blue

(B) Mark

(A)

(B)

(A)

(B)

ME-02043

ME-02039

ME(H6DO)-49

Timing Chain Assembly

MECHANICAL

(4) Install the chain guide (LH: between cams).

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

NOTE:
Use a new installing bolt.

(5) Install the chain guide (LH).

Tightening torque:

16 N·m (1.6 kgf-m, 11.8 ft-lb)

(6) Install the chain tensioner lever (LH).

Tightening torque:

16 N·m (1.6 kgf-m, 11.8 ft-lb)

(7) Install the chain tensioner (LH).

Tightening torque:

16 N·m (1.6 kgf-m, 11.8 ft-lb)

8) Install the timing chain (RH).

(1) Align the marks of timing chain LH and RH
on the idler sprocket (lower).

ME-02036

ME-02037

ME-02035

(A) Idler sprocket (lower)

(B) Timing chain (RH)

(C) Timing chain (LH)

(D) Blue

ME-02034

(A)

(B)

(C)

(D)

ME-00518