Rotax B reduction drive
parts
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# |
Part # |
Description |
Qty Req. |
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Rotax B gear box |
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1 |
810 107 |
Gear housing |
1 |
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2 |
932 091 |
Ball bearing |
1 |
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3 |
850 430 |
O-ring |
1 |
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4 |
929 670 |
Dowel 10x13 |
2 |
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5 |
930 536 |
Gasket |
1 |
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6 |
886 200 |
Gear set, 2.58:1 |
1 |
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886 202 |
Gear set, 2.24:1 |
1 |
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886 204 |
Gear set, 2.00:1 |
1 |
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7 |
827 785 |
Washer |
1 |
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8 |
945 766 |
Lock washer VHV 13 |
1 |
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9 |
841 656 |
Hex screw (60NM) |
1 |
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10 |
910 372 |
Gear cover |
1 |
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11 |
850 055 |
Oil seal |
1 |
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12 |
827 850 |
Distance ring |
1 |
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13 |
932 820 |
Ball bearing |
1 |
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14 |
445 070 |
Snap ring 62x2 |
1 |
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15 |
837 029 |
Prop shaft |
1 |
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16 |
944 470 |
Shim 25.5/34/.2 |
As Req. |
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16 |
944 471 |
Shim 25.5/34/.3 |
As Req. |
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16 |
944 472 |
Shim 25.5/34/.5 |
As Req. |
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16 |
944 473 |
Shim 25.5/34/1 |
As Req. |
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16 |
944 474 |
Shim 25.5/34/.1 |
As Req. |
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17 |
847 620 |
Distance 3 ring |
1 |
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18 |
939 020 |
Disk spring 850 |
12 |
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19 |
958 770 |
Dog hub |
1 |
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20 |
944 469 |
Thrust washer |
2 |
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21 |
827 840 |
Angular ring |
1 |
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22 |
827 862 |
Ring half |
2 |
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23 |
945 752 |
Lock washer |
6 |
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24 |
941 350 |
Hex screw (24NM) |
2 |
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25 |
941 171 |
Hex screw M8x1 0 (24NM)
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2 |
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26 |
841 301 |
Hex screw M8x65 (24NM)
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2 |
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27 |
552 280 |
Gasket ring |
1 |
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28 |
840 270 |
Magnetic plug |
1 |
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29 |
830 890 |
Gasket ring |
2 |
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30 |
841 781 |
Capstan screw M6x10 |
2 |
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31 |
941 115 |
Air vent screw |
1 |
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32 |
SW032 |
Safety wire |
As Req. |
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33 |
827 830 |
Cover washer |
1 |
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34 |
LT222 |
Loctite 222, violet |
As Req. |
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35 |
LT680 |
Loctite 680, green |
As Req. |
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36 |
PSAS |
Anti-seize |
As Req. |
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37- |
8P |
Energrease |
As Req. |
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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.
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