Infiniti G20 (P11). Manual — part 384
9.
Remove oil pans.
Refer to EM-14.
SEM038G
10. Remove oil strainer.
11. Temporarily install center member to support engine.
SEM980C
12. Remove crankshaft pulley.
13. Remove generator.
14. Remove A/C compressor and position it to the side.
15. Remove A/C bracket.
16. Remove generator bracket.
SEM039G
17. Set a suitable transmission jack under main bearing beam.
SEM040G
18. Remove RH engine mounting.
GI
MA
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TIMING CHAIN
Removal (Cont’d)
EM-21
SEM041G
19. Remove RH engine mounting bracket.
SEM721E
20. Remove oil pump drive spacer.
CAUTION:
Be careful not to damage oil pump drive spacer and front oil
seal.
21. Remove front cover.
CAUTION:
I
Be careful not to rear or damage the cylinder gasket.
I
Inspect for oil leakage at front oil seal. Replace seal if oil
leak is present.
SEM032G
22. Remove chain tensioner.
SEM982CA
23. Remove timing chain guides.
SEM034G
24. Remove camshaft sprockets.
I
For retiming in cylinder head removal, apply paint mark to
timing chain matched with mating marks of camshaft
sprockets.
25. Remove timing chain and crankshaft sprocket.
TIMING CHAIN
Removal (Cont’d)
EM-22
SEM984C
Inspection
NCEM0013
Check for cracks and excessive wear at roller links. Replace
chain if necessary.
SEM470E
Installation
NCEM0014
1.
Install crankshaft sprocket on crankshaft.
I
Make sure that mating marks on crankshaft sprocket face
front of engine.
SEM985C
2.
Position crankshaft so that No. 1 piston is set at TDC and key
way is at 12 o’clock. Fit timing chain on crankshaft sprocket,
aligning the mating marks.
SEM500E
I
Mating mark color on timing chain.
1: Yellow
2, 3: Blue
SEM982CA
3.
Install timing chain and timing chain guides.
GI
MA
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TIMING CHAIN
Inspection
EM-23
SEM048G
4.
Install camshaft sprockets and timing chain on them.
Line up mating marks on timing chain with mating marks
on camshaft sprockets.
SEM049G
I
Lock camshafts as shown in figure and tighten to specified
torque.
: 137 - 157 N·m (14.0 - 16.0 kg-m, 101 - 116 ft-lb)
Apply new engine oil to threads and seating surfaces of cam-
shaft sprocket bolts before installing them.
SEM990C
SEM991C
5.
Install chain tensioner.
Make sure the camshaft sprockets are tightened completely.
Press cam stopper down and “press-in” sleeve until hook can
be engaged on pin. When tensioner is bolted in position the
hook will release automatically. Make sure arrow “A” points
toward engine front.
SLC491A
6.
Use a scraper to remove old liquid gasket from mating surface
of front cover.
I
Also remove old liquid gasket from mating surface of cyl-
inder block.
TIMING CHAIN
Installation (Cont’d)
EM-24
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