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Service Manual Mitsubishi SL-Series diesel engines
Version 08/2004
ENGLISH
TIMING GEARS AND FLYWHEEL INSPECTION
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2. Idler shaft replacement
Install a new idler shaft to the cylinder block so that
its dimension from the face of the block is 26.5±0.5
mm (1.043±0.020 in.).
18.5 Flywheel and ring gear
1. Flatness (difference between lower and higher
measurements) of flywheel
Put the flywheel on the surface plate. Set a dial
indicator at one side of the friction (clutch contact)
face and move it over to the opposite side of the
face as shown in the illustration to find the flatness.
If the flatness exceeds the limit, grind the face.
Unit: mm (in.)
2. Ring gear replacement
Check the ring gear and replace it if its teeth are
abnormally worn or chipped.
1) Removal
Heat the ring gear evenly with an acetylene
torch. Tap the ring gear all the way around
with a bar and a hammer as shown in the
illustration to remove it from the flywheel.
2) Installation
Heat a new ring gear up to a temperature of
150°C (302°F) with a piston heater and install
it to the flywheel with its unchamfered side
foremost.
Figure 90 Idler shaft dimension
26,5 ± 0.5 mm
(1.043 ± 0.020 in.)
Figure 91 Measering flywheel flatness
Item Standard Limit
Flatness of
flywheel
0.15 (0.005 9)
maximum
0.50
(0.019 7)
Figure 92 Removing ring gear
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