Nissan Note [179/334] Cylinder head

Nissan Note [179/334] Cylinder head
CYLINDER HEAD
EM-179
[HR]
C
D
E
F
G
H
I
J
K
L
M
A
EM
NOTE:
It can be installed in either direction.
7. Install valve spring retainer.
8. Install valve collet.
Compress valve spring with the valve spring compressor, the
attachment and the adapter (SST: KV10116200) (A). Install
valve collet with a magnet hand (B).
CAUTION:
When working, be careful not to damage valve lifter
holes.
Tap valve stem edge lightly with a plastic hammer after instal-
lation to check its installed condition.
9. Install valve lifter.
10. Install spark plug with a spark plug wrench (commercial service tool).
Inspection After Disassembly
BBS002P5
VALVE DIMENSIONS
Check dimensions of each valve. For dimensions, refer to EM-216, "Valve Dimensions" .
If dimensions are out of the standard, replace valve.
VALVE GUIDE CLEARANCE
Valve Stem Diameter
Measure the diameter of valve stem with a micrometer.
Valve Guide Inner Diameter
Measure the inner diameter of valve guide with a bore gauge.
Valve Guide Clearance
(Valve guide clearance) = (Valve guide inner diameter) (Valve stem diameter).
If it exceeds the limit, replace valve guide and/or valve. When valve guide must be replaced, refer to EM-
180, "VALVE GUIDE REPLACEMENT" .
PBIC3727E
Standard
Intake : 4.965 - 4.980 mm (0.1954 - 0.1960 in)
Exhaust : 4.955 - 4.970 mm (0.1950 - 0.1956 in)
SEM938C
Standard
Intake and Exhaust
: 5.000 - 5.018 mm (0.1968 - 0.1975 in)
Valve guide clearance:
Standard
Intake : 0.020 - 0.053 mm (0.0008 - 0.0021 in)
Exhaust : 0.030 - 0.063 mm (0.0012 - 0.0025 in)
Limit
Intake : 0.1 mm (0.004 in)
Exhaust : 0.1 mm (0.004 in)

Содержание