Toyota FJ Cruiser (GSJ 10, 15 series). Manual — part 154

1GR-FE ENGINE MECHANICAL – CAMSHAFT

EM–49

EM

(5) When the camshaft timing gear comes to the

most advanced position, release the
compressed air on the timing retard side path,
and release that on the timing advance side
path.
NOTICE:
Camshaft timing assembly gear
occasionally shifts to the retard side
abruptly if the air compression on the
advanced side path is released first. This
often causes breakage of the lock pin.

(e) Check the smooth revolution.

(1) Rotate the camshaft timing gear several times

within the movable range except for the most
retarded position and check it rotates smoothly.
Standard:

Moves smoothly in a range of about 31

°

NOTICE:
Be sure to perform this check by hand,
instead of using compressed air.

(f)

Check that the lock is in the most retarded position.
(1) Confirm that the camshaft timing gear

assembly is locked in the most retarded
position.

(g) Remove the set bolt, then remove the camshaft

timing gear assembly.
NOTICE:
Do not remove the other 3 bolts.

Set Bolt

G036840E02

EM–50

1GR-FE ENGINE MECHANICAL – CAMSHAFT

EM

INSTALLATION

1.

INSTALL NO. 3 CAMSHAFT SUB-ASSEMBLY
NOTICE:
Keep the camshaft level while it is being removed.
The camshaft thrust clearance is very small and
failing to keep it level could crack or damage the
cylinder head journal surface, which receives the
thrust force. This could subsequently lead the
camshaft to seize or break. Perform the following
steps to avoid such problems.

(a) Align the yellow mark link with the timing mark (2 dot

marks) of the camshaft timing gear as shown in the
illustration.

(b) Apply new engine oil to the thrust portion and

journal of the camshafts.

(c) Temporarily put the No. 1 chain on the No. 2 chain

of the camshaft timing gear.

(d) Align the knock pin hole in the camshaft timing gear

with the knock pin of the No. 3 camshaft, and insert
the No. 3 camshaft into the camshaft timing gear.

(e) Temporarily install the camshaft timing gear set bolt.

(f)

Set the No. 3 camshaft onto the bank 2 cylinder
head with the cam lobes of the No. 2 cylinder facing
downward as shown in the illustration.

Mark Links

Timing Marks

A076490E03

A076491E01

Knock Pin

G036267E01

G036268E01

1GR-FE ENGINE MECHANICAL – CAMSHAFT

EM–51

EM

(g) Install the 4 bearing caps in the proper locations as

shown.

(h) Apply a light coat of engine oil to the threads and

under the heads of the bearing cap bolts.

(i)

Using several steps, uniformly install and tighten the
8 bearing cap bolts in the sequence shown in the
illustration.
Torque: 10 mm (0.39 in.) head

9.0 N*m (92 kgf*cm, 80 in.*lbf)
12 mm (0.47 in.) head
24 N*m (245 kgf*cm, 18 ft.*lbf)

(j)

Align the paint mark of the No. 1 chain with the
timing marks of the camshaft timing gear.

(k) Hold the hexagonal portion of the No. 3 camshaft

with a wrench, and tighten the camshaft timing gear
set bolt.
Torque: 100 N*m (1,020 kgf*cm, 74 ft.*lbf)

2.

INSTALL NO. 3 CHAIN TENSIONER ASSEMBLY
(a) While pushing in the tensioner, insert a pin of

φ 1.0

mm (0.039 in.) into the hole to hold it.

A076494E01

8

7

5

3

2

6

4

1

A076487E05

Paint Mark

Timing Marks

G036269E01

G036264E01

Push

A076289E01

EM–52

1GR-FE ENGINE MECHANICAL – CAMSHAFT

EM

(b) Temporarily install the camshaft timing gear and No.

3 chain tensioner and align the yellow mark links
with the timing marks (1 dot mark and 2 dot marks)
of the camshaft timing gears.

(c) Tighten the No. 3 chain tensioner bolt.

Torque: 19 N*m (194 kgf*cm, 14 ft.*lbf)

3.

INSTALL NO. 4 CAMSHAFT SUB-ASSEMBLY
NOTICE:
Keep the camshaft level while it is being removed.
The camshaft thrust clearance is very small and
failing to keep it level could crack or damage the
cylinder head journal surface, which receives the
thrust force. This could subsequently lead the
camshaft to seize or break. Perform the following
steps to avoid such problems.

(a) Align the knock pin hole in the camshaft timing gear

with the knock pin of the No. 4 camshaft, and insert
the No. 4 camshaft into the camshaft timing gear.

(b) Temporarily install the camshaft timing gear set bolt.

(c) Install the 4 bearing caps in the proper locations as

shown.

(d) Apply a light coat of engine oil to the threads of the

bearing cap bolts.

(e) Using several steps, uniformly install and tighten the

8 bearing cap bolts in the sequence shown in the
illustration.
Torque: 10 mm (0.39 in.) head

9.0 N*m (92 kgf*cm, 80 in.*lbf)
12 mm (0.47 in.) head
24 N*m (245 kgf*cm, 18 ft.*lbf)

Mark Links

Timing Marks

A076496E01

G036270E01

A076498E01

8

7

6

5

4

2

3

1

A076482E05