DK00027.fm
REPAIR MANUAL
BRP-Powertrain
Effectivity: 125 MAX/125 Junior MAX/125 Mini
MAX/125 Micro MAX
Edition 2 / Rev. 0
Chapter 5
Page 31
December 01/2010
5) Assembly of crankcase
General
Special tools The following special tools and equipment are required:
5.1) Installation of bearing and oil seal for shaft
Safety
instructions
Instructions See Figure 19.
Clutch end case half
Removed gaskets, circlips, O-rings and oil seals for
shaft must always be replaced during an engine
overhaul.
Part number Description Use
n.e Convection oven or hot plate Case halves
Part no. 676030 Installation tool Needle bearing
Part no. 676010 Mounting sleeve Shaft seal
Part no. 676021 Installation tool
n.e. 2-stroke engine oil Shaft seal
n.e. MOLYCOTE 111 Shaft seal
Danger of serious burns and scalding!
Wear safety gloves!
Step Procedure
1 Heat both crankcase halves to 150 °C in the convection oven.
2 Remove case half from the convection oven and drop onto a flat wood board
with the case split pane.
3 Coat the oil seal for shaft (25x38x7) for the clutch end crankcase half with en-
gine oil in the area between the sealing lip and dust lip.
4 Press in the oil seal for shaft to the stop with the mounting sleeve (part no.
676010) from inside to outside so the open end of the oil seal for shaft is di-
rected inward.
NOTES: The oil seal for shaft can also be installed from outside to
inside if the crankshaft is installed.
5 Slide the ball bearing (1) of the crankshaft into the crankcase half to the limit
stop so the closed side of the cage is facing to the crankshaft.
6 Slide the ball bearing of the balance shaft into the crankcase half to the limit
stop so the closed side of the cage is facing to the balance shaft.
7 Press in the needle bearing (2) to the limit stop with the installation tool (3)
(part no. 676030) so the label on the needle bearing is facing outwards.
8 Allow the crankcase halves to cool in this position.
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