Infiniti FX35 / FX45. Manual - part 671

 

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Infiniti FX35 / FX45. Manual - part 671

 

 

TIMING CHAIN

EM-201

< SERVICE INFORMATION >

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5.

Remove intake valve timing control cover as follows: 

a.

Loosen and remove mounting bolts in the reverse order as
shown in the figure. 

b.

Use seal cutter [SST: KV10111100 (J37228)] to cut liquid gasket
for removal.

CAUTION:

• Exercise care not to damage mating surfaces.
• Pull out cover keeping levelness without an angle, as

inner part of cover is engaged with the center of camshaft
sprocket (INT).

6.

Remove O-rings from front cover.

7.

Obtain No. 1 cylinder at TDC of its compression stroke as follows:

a.

Rotate crankshaft pulley clockwise to align the TDC identifica-
tion notch (without paint mark) with timing indicator on front
cover. 

b.

Make sure that both intake and exhaust cam noses of No. 1 cyl-
inder (engine front side of left bank) are located as shown in the
figure.
• If not, turn crankshaft one revolution (360 degrees) and align

as shown in the figure.

8.

Remove crankshaft pulley as follows:

PBIC0051E

SBIA0374E

PBIC2341E

KBIA0400J

EM-202

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TIMING CHAIN

a.

Remove rear plate cover, and set ring gear stopper (SST).

b.

Loosen crankshaft pulley bolt, and then pull crankshaft pulley
with both hands to remove it.

CAUTION:

• Do not remove crankshaft pulley bolt. Keep loosened

crankshaft pulley bolt in place to protect removed crank-
shaft pulley from dropping.

• Do not remove balance weight (inner hexagon bolt) at the

front of crankshaft pulley.

9.

Remove oil pan and oil strainer. Refer to 

EM-183, "Component"

.

10. Remove front cover as follows:

a.

Loosen mounting bolts in reverse order as shown in the figure.

b.

Use seal cutter [SST: KV10111100 (J37228)] to cut liquid gasket
for removal. 

CAUTION:

• Exercise care not to damage mating surfaces.
• After removal, handle front cover carefully so it does not

tilt, cant, or warp under a load.

11. Remove front oil seal from front cover using suitable tool.

• Use screwdriver for removal.

CAUTION:

Be careful not to damage front cover.

12. Remove O-rings from cylinder heads (right and left bank) and

cylinder block.

13. Remove chain tensioner cover from front cover.

• Use seal cutter [SST: KV10111100 (J37228)] to cut liquid gasket for remove.

14. Remove oil pump drive spacer.

• Set bolts in the two bolt holes [M6 

×

 pitch 1.0 mm (0.04 in)] on

front surface. Using suitable puller, pull oil pump drive spacer
off from crankshaft. 

NOTE:
The dimension between the centers of the two bolt holes is 33
mm (1.30 in).
In the figure, a commercial steering puller is used.

15. Remove oil pump. Refer to 

LU-29, "Component"

.

16. Remove chain tensioner (left bank) as follows:

PBIC1656E

KBIA0354J

SBIA0373E

PBIC2342E

TIMING CHAIN

EM-203

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NOTE:
To remove timing chain and related parts, start with those on left bank. The procedure for removing parts
on right bank is omitted because it is the same as that for left bank. 

a.

Press tab in the direction of arrow (or turn lever in the direction
of arrow) to unlock the locking with the groove that stops ten-
sioner plunger from returning.
• Lightly press tensioner plunger to release the tension of spring

for this operation.

b.

Push in tensioner plunger to align the hole on lever and that on
pump main body.
• Pushing in tensioner too far does not allow the holes to align.

Therefore, push in plunger to the degree at which the start of
stopper groove and tab engages.

c.

Insert stopper pin [hard wire with approx. 0.5 mm (0.020 in)
diameter or similar tool] to fix plunger. With plunger fixed,
remove chain tensioner.

17. Remove chain tension guide and timing chain slack guide.

18. Remove timing chain and crankshaft sprocket.

CAUTION:

After removing timing chain, do not turn crankshaft and camshaft separately, or valves will strike
the piston head.

19. With hexagonal part of camshaft locked with wrench, loosen

mounting bolts securing camshaft sprocket to remove camshaft
sprocket.

CAUTION:

Do not loosen mounting bolts with securing anything other
than the camshaft hexagonal portion or with tensioning the
timing chain.

20. Perform same procedure as for left bank, remove timing chain and related parts on right side.

21. Use scraper to remove all traces of old liquid gasket from front cover and opposite mating surfaces.

• Remove oil liquid gasket from bolt hole and thread.

22. Use scraper to remove all trace of liquid gasket from chain tensioner cover and intake valve timing control

covers.

INSPECTION AFTER REMOVAL

Timing Chain

PBIC2343E

PBIC0030E

PBIC2084E

EM-204

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TIMING CHAIN

Check for cracks and any excessive wear at link plates and roller
links of timing chain. Replace timing chain as necessary.

INSTALLATION

NOTE:
• The above figure shows the relationship between the mating mark on each timing chain and that on the cor-

responding sprocket, with the components installed.

• Parts with an identification mark (R or L) should be installed on the corresponding bank according to the

mark. 
Parts with an identification mark:

- Camshaft sprocket (INT)
- Dowel pin groove of camshaft sprocket (EXH) (camshaft sprocket is same part both banks)
- Chain tension guide
- Chain slack guide
• To install timing chain and related parts, start with those on right bank. The procedure for installing parts on

left bank is omitted because it is the same as that for installation on right bank.

PBIC0282E

PBIC2344E

 

 

 

 

 

 

 

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