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Rotax 914 series Maintenance Manual

Rotax 914 series
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75-00-00
page 12
May 01/2007
Effectivity 912/914 Series
Edition 1 / Rev. 0
d02625
BRP-Rotax
Maintenance Manual
3.8) Axial position of the water pump shaft
See Fig. 75-10
Check axial position of water pump shaft and pump gear. The step (6) of the gear
points inward towards the crankcase.
â—† NOTE: To ensure the correct gap (8) (dimension WP02) between the
impeller (9) and the water pump housing (10), make sure that
the collar (7) of the water pump shaft is flush with the sealing
surface (11) of the ignition cover (12).
If necessary, turn the ignition cover around and lay it on a planed hardened sheet
with an 8 mm (0.32 in.) bore. Press the water pump shaft back as required with
a ø10 mm (0.40 in.) bolt. Trial spin the installed pump shaft.
Place stainless steel shim (13) on the shaft, fit impeller (9), turning clockwise,
and tighten with special tool, part no. 877295. Tightening torque 15 Nm (133
in.lb).
â—† NOTE: Check impeller (9) for out-of-round. If it is noticeably out-of-
round, replace impeller or if necessary also the pump shaft.
See 75-00-00 sec. 4.
00085
WP02
11
12
13
14
6
7
8
9
10
WP01
Fig. 75-10

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Rotax 914 series Specifications

General IconGeneral
Bore79.5 mm
Stroke61 mm
Compression Ratio9.0:1
Cooling SystemLiquid-cooled cylinder heads, air-cooled cylinders
Redline5800 rpm
Engine Type4-cylinder, 4-stroke
Fuel TypeAvgas 100LL
Oil SystemDry sump
Fuel Systemfuel injection
TBO (Time Between Overhauls)2000 hours
Displacement1.211 liters (1211 cc)
Power Output84.6 kW (115 hp) at 5, 800 rpm

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