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Rotax B box, Rotax B reduction
drive for use
with Rotax provision 8 crankcase.
Installing the Rotax "B" Gear Box
Prov 8
1. Clean and degrease the crankshaft
end and mounting holes on the crankcase before starting.
2. Using the Rotax fixation tool
supplied in the Rotax tool kit lock the engine up by installing the
pin into the impulse hole, used to run the fuel pump. With the pin
in place rotate the engine, until it locks.
3. Install drive gear onto crankshaft
end, with the lockwasher under the head of the bolt, and the flat
washer under the lockwasher. Torque to 45 FOOT lbs.
4. Install the rubber O ring (#3)
into the back half of the gearbox, if necessary use dielectric
grease to hold ring in place.
5. Position back half of gearbox (#1)
onto crankcase. Apply loctite #242 to threads of bolts (#4) install
two bolts and torque 195 INCH lbs.
6.Install gasket - make sure gasket
is not damaged.
7. Install front half of gear box
housing and secure with bolts and lockwashers. Use loctite 242 on
threads and torque to 195 INCH lbs.
8. Fill gear box with 90 weight oil
until oil runs out the lower of the two side plugs.
9. Tighten then safety wire top and
bottom plugs.
10. Tighten then safety wire vent cap
and drain plug.
Click here for proper B box preload advisory
Click here for gear box installation in pdf format
Rotax gear box updates - click here for more information
Rotax manuals in pdf format
Rotax 2 stroke installation manual
Rotax 2 stroke maintenance manual
Rotax 2 stroke operators manual |
