Nissan Altima L32. Instruction — part 664
EM-192
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CYLINDER HEAD
4. Remove cylinder heads and gaskets.
• Discard the cylinder head gaskets and use new gaskets for
installation.
INSTALLATION
1. Before installing the rear timing chain case, remove the old Sili-
cone RTV Sealant from mating surface using a scraper.
• Also remove old sealant from mating surface of cylinder block.
• Remove the old Silicone RTV Sealant from the bolt hole and
thread.
2. Before installing the front cam bracket, remove the old RTV Sili-
cone Sealant from the mating surface using a scraper.
• Do not scratch the mating surface.
SEM863E
SEM891E
SEM161F
SEM892E
CYLINDER HEAD
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3. Turn the crankshaft until No. 1 piston is set at TDC on the com-
pression stroke.
• The crankshaft key should line up with the right bank cylinder
center line as shown.
4. Install new gaskets on the cylinder heads.
CAUTION:
Do not rotate crankshaft and camshaft separately or valves
will strike piston heads.
5. Inspect the cylinder head bolts before installing the cylinder heads.
CAUTION:
Cylinder head bolts are tightened by degree rotation tight-
ening method. Whenever the size difference between d1
and d2 exceeds the limit, replace the bolts with new ones.
• Lubricate threads and seat surfaces of the bolts with new
engine oil.
6. Install the cylinder heads on the cylinder block. Tighten the cylin-
der head bolts in the five steps in the numerical order as shown
using Tool.
• Tightening procedure:
SEM532G
SEM445G
Limit (d1 - d2)
: 0.11 mm (0.0043 in)
SEM957E
Tool Number
: KV10112100 (BT-8653-A)
SEM879EA
EM-194
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[VQ35DE]
CYLINDER HEAD
7. Installation of the remaining components is in the reverse order of removal.
Cylinder head bolts
Step a
: 98.1 N·m (10 kg-m, 72 ft-lb)
Step b
:Loosen in the reverse order of tightening
Step c : 32.9 N·m (4.0 kg-m, 29 ft-lb)
Step d
: 90
° degrees rotation clockwise
Step e
: 90
° degrees rotation clockwise
SEM877EA
SEM878EA
CYLINDER HEAD
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Disassembly and Assembly
INFOID:0000000004202179
CAUTION:
• When installing camshafts, chain tensioners, oil seals, or other sliding parts, lubricate contacting
surfaces with new engine oil.
• Apply new engine oil to threads and seat surface when installing cylinder head, camshaft sprocket,
crankshaft pulley, and camshaft bracket.
• Attach tags to valve lifters so as not to mix them up.
ALBIA0261ZZ
1.
Valve collet
2.
Valve spring retainer
3.
Valve spring
4.
Valve oil seal
5.
Valve spring seat
6.
Valve guide
7.
Cylinder head
8.
Valve seat (EXH)
9.
Valve seat (INT)
10. Valve (EXH)
11. Valve (INT)
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