Mitsubishi S12A2 - Idler Gear - Install; Idler Gear End Play - Measuring

7-23
Chapter 7 ASSEMBLY OF BASIC ENGINE
4.8 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
4.9 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
㪈
㪈
㪈
㪈
㪋
㪋
㪋
㪋
㪋
㪊
㪊
㪊
㪊
㪊
㪊
㪊
㪊
㪊
㪊
㪉
㪉
㪉
㪉
㪉
㪉
Camshaft gear
Crankshaft gear
Oil pump
gear
Fuel
injection
pump gear (Z51)
Idler gear
Idler gear
Thrust plate
39 ± 3.9 N·m
{4 ± 0.4 kgf·m}
[29 ± 2.9 lbf·ft]
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.]
Idler gear