Rotax 912 Series Service Manual

BRP-Rotax
Maintenance Manual
Effectivity 912/914 Series
Edition 1 / Rev. 0
72-00-00
page 61
May 01/2007
d02622
CH09
2
1
3.11.2) Reworking of the sealing surface to the exhaust manifold
See Fig. 72-63.
Reworking is permissible if there is a leak at the sealing surface (1) to
the exhaust manifold.
The diameter of the sealing surface must not be increased to more than
dimension CH09. See 72-00-00 sec. 4.
The material removed during reworking must be compensated for by
assembling a copper sealing ring (2), part no. 931920. The sealing ring
is available as a spare part.
■ CAUTION: Ensure that the reworked sealing surface is free of
tool chatter marks.
Reworking must be carried out with a suitable countersink until the
sealing surface is clean.
■ CAUTION: It must be ensured that the lock nut can be screwed
onto the stud far enough to allow the lock nut to
function correctly.
06746
Fig. 72-63

Rotax 912 Series Specifications

General

Redline	5800 rpm
TBO	2000 hours
Displacement	1211 cc
Bore	79.5 mm
Stroke	61 mm
Power Output	80 hp (59.6 kW)
Compression Ratio	9.0:1
Fuel Type	Avgas 100LL
Ignition System	Dual electronic ignition
Fuel System	Fuel Injected
Oil System	Dry sump
Engine Type	4-cylinder, horizontally opposed, 4-stroke