11
11-39
Disassembly sequence
Assembly sequence
Follow the disassembly sequence in reverse.
CAUTION
• The cylinder head bolt is tightened within the plastic region. The number of punch marks indicates the
number of times the bolt has been tightened. If there are 3 punch marks (tightened 3 times in the past), re-
place the bolt.
Service standards (Unit: mm)
M
itsubishi 6M70 Tightening torque (Unit: N·m {kgf·m})
Lubricant and/or sealant
Location Maintenance item Standard value Limit Remedy
9, 10 Clearance between idler shaft and idler gear bushing 0.03 to 0.068 0.2 Replace
11 Idler gear D end play 0.1 to 0.2 0.4 Replace
11,
*
a Backlash between idler gear D and idler gear C 0.094 to 0.181 0.35 Replace
Mark Parts to be tightened Tightening torque Remarks
Bolt (nozzle bridge mounting) 54 {5.5} –
Mitsubishi 6M70 Cylinder head bolt
180 NM {18 kgfm} 133 Ft Lbs
Plus + 90°
• Wet
• Can be reusable
up to 3 times
Bolt (idler shaft mounting) 55 {5.5} –
Mark Points of application Specified lubricant and/or sealant Quantity
O-ring
Engine oil As required
Threaded of bolt
Outer periphery of idler shaft
Inside surface of idler gear bushing
Top mating surfaces of flywheel housing and crankcase
ThreeBond 1211 As required
Mating surfaces of cylinder head on cylinder head gasket
top surface and timing gear case
Mating surfaces of cylinder head and timing gear case ThreeBond 1207C As required
1 Nozzle bridge
2 Injector (See Gr13.)
3 O-ring
4 Nozzle tip gasket
5 Cylinder head bolt
6 Plate
7 O-ring
8 Timing gear case
9 Idler shaft
10 Idler gear bushing
11 Idler gear D
12 Thrust plate
13 Cylinder head
(See later section.)
14 6M70 Cylinder head gasket
*
a: Idler gear C
*
b: Flywheel housing
*
c:Crankcase
: Locating pin
: Non-reusable parts
Mitsubishi 6M70 Engine Parts contact:
email: EngineParts@HeavyEquipmentRestorationPar
ts.com
Phone: 269 673 1638
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