Mitsubishi S6R Series User Manual

7-23
Chapter 7 ASSEMBLY OF BASIC ENGINE
4.7 Idler Gear - Install
(1) Turn the crankshaft to move the No. 1 cylinder to the
top dead center.
(2) Apply engine oil to the idler shaft.
(3) Install the idler gear, aligning it with the match marks.
(4) Install the thrust plate to the idler shaft.
(5) Tighten the bolts to the specified torque.
(6) Make sure that the match marks on timing gears are
properly aligned as shown in the illustration.
Timing Gear Train
Idler Gear - Install
4.8 Idler Gear End Play - Measure
Measure the end play of the idler gear. If the value exceeds
the limit, find the causal parts, and replace them with new
ones.
Idler Gear End Play - Measure
4.9 Timing Gear Backlash - Measure
Measure the backlash of timing gears using either method:
measure the gear backlash with a dial gauge applying its
probe to a tooth flank on the pitch circle at a right angle to
the tooth axis, or measure the clearance between gears by
inserting thickness gauges between the engaging gear teeth.
If the value exceeds the limit, replace the gears with new
ones.
Timing Gear Backlash - Measure
Idler gear
Crankshaft gear
Fuel injection pump gear
3
3
3
2
22
1
1
1
Camshaft gear
60 ± 3.0 N·m {6.1 ± 0.31 kgf·m} [44.3 ± 2.21 lbf·ft]
Idler gear
Item Standard value Limit value
Idler gear end play
0.2 to 0.4 mm
[0.008 to 0.016 in.]
0.6 mm
[0.024 in.]
Item Standard value Limit value
Backlash between crank gear
and idler gear
0.11 to 0.28 mm
[0.0043 to 0.0110 in.]
0.50 mm
[0.0197 in.]
Backlash between idler gear
and camshaft gear
0.12 to 0.18 mm
[0.0047 to 0.0071 in.]
0.50 mm
[0.0197 in.]
Backlash between idler gear
and fuel injection pump gear
0.12 to 0.18 mm
[0.0047 to 0.0071 in.]
0.50 mm
[0.0197 in.]

Mitsubishi S6R Series Specifications

General

Brand	Mitsubishi
Model	S6R Series
Category	Engine
Language	English