Mitsubishi S12A2, Service Manual

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Chapter 6 INSPECTION AND REPAIR OF BASIC ENGINE
5.10 Oil Seal Slinger - Inspect
If any defect such as dent, damage, wear and backlash that
could lead to oil leakage are found on the rear oil seal
slinger, replace the rear oil seal slinger with a new one.
Note: Whenever the front cover is replaced, the front side
slinger must be replaced with a new one, as the front
slinger is a cassette (assembling) type having oil seal.
Oil Seal Slinger - Inspect
5.11 Oil Seal Slinger - Replace
5.11.1 Oil Seal Slinger - Remove
(1)
Using a gear puller, pull out the rear side oil seal slinger
from the crankshaft.
(2)
Remove the front side oil seal slinger with a screw-
driver by prying it out.
Note: When removing the oil seal slinger by heating, the
heating temperature is 100°C [212°F] or less.
Oil Seal Slinger (Rear) - Remove
5.11.2 Oil Seal Slinger - Install
(1)
Measure the outside diameter of crankshaft and inside
diameter of oil seal slinger, and check the interference.
(2)
Heat the rear side oil seal slinger evenly under 110ºC
[230 °F].After checking the correct direction and posi-
tion of slinger, install the slinger.
Note: The front side slinger is a cassette type with integrated
oil seal, therefore, the front slinger must be installed
together with the oil seal after the front cover is mount-
ed.
For installation, refer to "Front Oil Seal - Install" of
"ASSEMBLY OF BASIC ENGINE".
Oil seal slinger - Install (1)
Oil seal slinger - Install (2)
Oil seal
Oil seal
slinger
Timing
gear case
Front
cover
Front
Rear
Oil seal
Use protective gloves when you touch hot parts.
Handling with bear hands could result in burns.
Oil seal slinger
Tight contact with gear Tight contact with gear
Crankshaft
rear end
ID mark
(32511-05200)
Interference standard value:
0.210 to 0.294 mm
Tight contact with gear
Slinger
Installer