Mitsubishi S6R2 Series User Manual

2-5
Chapter 2 SERVICE DATA
Cylinder
head
Distortion of bottom surface 0.03 [0.0012] or less
0.07
[0.003]
Height (reference)
154.9 to 155.1
[6.098 to 6.106]
Cylinder
liner
Inside diameter
P/N: 37507-22700 (S6R)
ø170
[6.69]
170.02 to 170.04
[6.6937 to 6.6945]
170.100
[6.6968]
P/N: 37507-55600 (S6R2)
ø170
[6.69]
170.00 to 170.04
[6.6929 to 6.6945]
Roundness 0.02 [0.0008] or less
Cylindricity 0.02 [0.0008] or less
Flange protrusion
0.11 to 0.20
[0.0043 to 0.0079]
Flange thickness
14.16 to 14.20
[0.5575 to 0.5591]
Top ridge height
0.16 to 0.24
[0.0063 to 0.0094]
Piston
Outside diameter
P/N:
37517-30101 ("30101" stamp)
37517-10401 ("10401" stamp)
37517-00900 ("00900" stamp)
37517-25100 ("25100" stamp)
37517-05500 ("05500" stamp)
37517-05300 ("05300" stamp)
ø170
[6.69]
169.760 to 169.800
[6.6835 to 6.6850]
169.660
[6.6795]
Measure the outside
diameter from lower end
of piston at 40 mm [1.57
in.] with right angles to
the piston pin.
P/N:
37517-07800 ("07800" stamp)
37517-07900 ("07900" stamp)
ø170
[6.69]
169.739 to 169.779
[6.6826 to 6.6842]
169.639
[6.6787]
P/N:
37517-00800 ("00800" stamp)
ø170
[6.69]
169.760 to 169.780
[6.6835 to 6.6842]
169.660
[6.6795]
Weight difference
per engine
P/N:
37517-30101 ("30101" stamp)
37517-10401 ("10401" stamp)
37517-00900 ("00900" stamp)
37517-25100 ("25100" stamp)
37517-05500 ("05500" stamp)
37517-05300 ("05300" stamp)
37517-07800 ("07800" stamp)
37517-07900 ("07900" stamp)
within 10 g [0.35 oz]
P/N:
37517-00800 ("00800" stamp)
within ±15 g [0.53 oz]
Piston pin bore inside diameter ø70 [2.76]
70.002 to 70.015
[2.7560 to 2.7565]
70.040
[2.7575]
protrusion
0.04 to 0.64
[0.0016 to 0.0252]
Cylinder
head
gasket
Thickness when tightened
1.8
[0.071]
1.77 to 1.83
[0.0697 to 0.0720]
Piston
cooling
nozzle
Valve opening
pressure
One jet spec
0.26 to 0.32 MPa
{2.7 to 3.3 kgf/cm
2
}
[38 to 47 psi]
Two jet spec
0.10 to 0.15 MPa
{1.0 to 1.5 kgf/cm
2
}
[14 to 21 psi]
Piston and
cylinder
head
Top clearance
1.24 to 1.99
[0.0488 to 0.0783]
Piston ring End gap
No. 1 compression
0.6 to 0.8
[0.024 to 0.032]
1.0
[0.039]
No. 2 compression
0.6 to 0.8
[0.024 to 0.032]
Oil
0.3 to 0.45
[0.0118 to 0.0177]
0.6
[0.024]
Unit: mm [in.]
Item
Nominal
value
Standard value Limit value Remarks

Mitsubishi S6R2 Series Specifications

General

Brand	Mitsubishi
Model	S6R2 Series
Category	Engine
Language	English