Mitsubishi 6M60-TL, Service Manual

Page: 69 / 330

11
11-33
Service standards (Unit: mm)
Tightening torque (Unit: N · m {kgf · m})
Lubricant and/or sealant
Location Maintenance item Standard value Limit Remedy
2, 10 Valve bridge-to-valve bridge guide clearance 0.01 to 0.04 0.1 Replace
5
Outer valve
spring
Intake side
Free length 71.7 68.1 Replace
Installed load
(46.5 in installed
length)
407 ± 20.6 N
{42 ± 2.1 kgf}
367 N
{37 kgf}
Replace
Squareness – 2
°
or less Replace
Exhaust side
Free length 66.47 63.1 Replace
Installed load
(46.5 in installed
length)
280 ± 14 N
{29 ± 1.4 kgf}
252 N
{26 kgf}
Replace
Squareness – 2
°
or less Replace
6
Inner valve
spring
Free length 60.61 57.6 Replace
Installed load
(41.8 in installed length) 127 ± 6.3 N
{12.9 ± 1.9 kgf}
121 N
{12 kgf}
Replace
Squareness – 2
°
or less Replace
8 Exhaust valve
Stem outside diameter
φ
8
φ
7.85 Replace
Sinkage from cylinder head
bottom surface
1.3 ± 0.2 1.55 Inspect
Valve margin 1.5 1.2 Replace
Seat angle 45
°
± 15’ – Correct
8, 11 Exhaust valve stem-to-valve guide clearance 0.07 to 0.10 0.2 Replace
9 Intake valve
Stem outside diameter
φ
8
φ
7.85 Replace
Sinkage from cylinder head bottom
surface
1.3 ± 0.2 1.55 Inspect
Valve margin 1.5 1.2 Replace
Seat angle 45
°
± 15’ – Correct
9, 12 Intake valve stem-to-valve guide clearance 0.06 to 0.09 0.2 Replace
10 Valve bridge guide in outside diameter 9.989 to 10 9.94 Replace
13 Exhaust valve seat width 2.3 to 2.7 3.3
Correct or
replace
14 Intake valve seat width 1.8 to 2.2 2.8
Correct or
replace
16 Cylinder head
Bottom surface distortion 0.08 or less 0.2
Correct or
replace
Height from top surface to
bottom surface
94.9 to 95.1 94.5 Replace
Mark Parts to be tightened Tightening torque Remarks
Lock nut (valve bridge adjusting screw tightening) 59 {6.0} –
Stud bolt 20 {2} –
Mark Points of application Specified lubricant and/or sealant Quantity
Lip of valve stem seal
Engine oil As required
Stem and end of valve
–0.060
–0.075
–0.025
–0.040