Mitsubishi 6M70 Workshop Manual page 55

Mitsubishi 6M70 Service standards (Unit: mm)
Location
6M70 Valve bridge-to-valve bridge guide clearance
2, 11
6M70 Valve spring
<Intake>,
6M70 outer valve
6
spring
<Exhaust>
6M70 Inner valve
7 spring
<Exhaust>
6M70
9
Exhaust valve
6M70 Exhaust valve stem-to-valve guide clearance
9, 12
6M70
10
Intake valve
6M70 Intake valve stem-to-valve guide clearance
10, 13
6M70 Outer diameter of valve bridge guide
11
6M70 Exhaust valve seat width
14
6M70 Intake valve seat width
15
6M70
18
Cylinder head
Tightening torque (Unit: N·m {kgf·m})
Mark
Lock nut (valve bridge adjusting screw tightening)
Stud bolt
Lubricant and/or sealant
Mark
Lip of valve stem seal
Stem and end of valve
Nozzle tube end
Maintenance item
Free length
Installed load
(Installed length 61.325)
Squareness
Free length
Installed load
(Installed length 54.325)
Squareness
Stem outer diameter
Sinkage from cylinder head
bottom surface
Valve margin
Seat angle
Stem outer diameter
Sinkage from cylinder head bottom
surface
Valve margin
Seat angle
Bottom surface distortion
Height from top surface to
bottom surface
Valve seat hole diameter
Parts to be tightened
Points of application
Standard value
0.01 to 0.048
89.3
490.4 ± 24.5 N
{50.0 ± 2.5 kgf}
–
76.0
98.1 ± 4.9 N
{10.0 ± 0.5 kgf}
–
9.925 to 9.940
0.2 ± 0.25
2.5
45° ± 15°
0.07 to 0.10
9.96 to 9.975
0.5 ± 0.25
2.83
60° ± 15°
0.035 to 0.065
10.989 to 11 10.988
3.5 ± 0.2
2.8 ± 0.2
0.07
130 ± 0.05
+0.025
φ 49
0
Tightening torque
68 {7.0}
20 {2.0}
Specified lubricant and/or sealant
Engine oil
ThreeBond 1211
11
Limit Remedy
0.1 Replace
87.9 Replace
– Replace
2.0 Replace
74.9 Replace
– Replace
2.0 Replace
9.85 Replace
0.7 Replace
2.0 Replace
– Rectify
0.2 Replace
9.85 Replace
1.0 Replace
2.33 Replace
– Rectify
0.2 Replace
Replace
Rectify or
4.2
replace
Rectify or
3.5
replace
Rectify or
0.2
replace
129.5 Replace
– Replace
Remarks
–
–
Quantity
As required
As required
11-45