Nissan ENGINE - Page 134

EM-134
< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
*
1
: Diameter made by intersection point of conic angles (α and α2)
*
2
: Diameter made by intersection point of conic angles α2) and (α3)
*3
: Machining data
Valve Spring
Spark Plug Tube
Unit: mm (in)
CYLINDER BLOCK
Unit: mm (in)
Diameter (d1)*
1
Intake 35 (1.38)
Exhaust 28.7 (1.130)
Diameter (d2)*
2
Intake 36.3 - 36.8 (1.429 - 1.449)
Exhaust 30.3 - 30.8 (1.193 - 1.213)
Angle α1)
Intake 60°
Exhaust 60°
Angle α2)
Intake 88°45′ - 90°15′
Exhaust 88°45′ - 90°15′
Angle α3)
Intake 120°
Exhaust 120°
Contacting width (W)*
3
Intake 1.0 - 1.4 (0.039-0.055)
Exhaust 1.2 - 1.6 (0.047-0.063)
Height (h)
Intake 5.9 - 6.0 (0.232 - 0.236) 5.05 - 5.15 (0.1988 - 0.2028)
Exhaust 5.9 - 6.0 (0.232 - 0.236) 4.95 - 5.05 (0.1949 - 0.1988)
Depth (H) 6.0 (0.236)
Free height mm (in) 47.07 (1.8531)
Pressure N (kg, lb) at height mm (in)
Installation 166 - 188 (16.9 - 19.2, 37 - 42) at 37.00 (1.4567)
Valve open 373 - 421 (38.0 - 42.9, 84 - 95) at 27.20 (1.0709)
Squareness mm (in) Limit 2.1 (0.083)
Items Standard
Spark plug tube press-fit height (H) 38.1 - 39.1 (1.500 - 1.539)
Surface flatness
Standard Less than 0.03 (0.0012)
Limit 0.1 (0.004)
Main bearing housing inner diameter Standard 74.993 - 75.017 (2.9525 - 2.9534)
Cylinder bore Inner diameter Standard*
Grade No. 1 95.500 - 95.510 (3.7598 - 3.7602)
Grade No. 2 95.510 - 95.520 (3.7602 - 3.7606)
Grade No. 3 95.520 - 95.530 (3.7606 - 3.7610)
PBIC2955E
Revision: January 2013 2013 Xterra