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Rotax 914 series Maintenance Manual

Rotax 914 series
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BRP-Rotax
Maintenance Manual
Effectivity 912/914 Series
Edition 1 / Rev. 0
72-00-00
page 63
May 01/2007
d02622
3.11.4) Valve seats
See Fig. 72-66.
Carry out a visual inspection of the valve faces for damage and wear.
Apply engineers blue evenly to the valve faces and fit the valves into the
respective valve guides. Turn the valve under gentle pressure to
produce a clear imprint of the sealing surface on the valve seat ring.
Ensure that the sealing surface of the valve seats (1) is clean and if
necessary, regrind with valve lapping paste.
â–  CAUTION: The annular imprint on the valve face must be a
continuous, unbroken ring.
The width of the imprint corresponds to the width of the
valve seat CH02.
â–  CAUTION: If burned spots or deformation are detected, send the
cylinder head to a ROTAX
authorized overhaul facility
for overhaul.
See 72-00-00 sec. 4.
Maß
dim.
45°
00285
CH02
1
Fig. 72-66

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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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