Rotax 912 Series Service Manual

Effectivity 912/914 Series
Edition 1 / Rev. 0
76-00-00
page 1
May 01/2007
d02626
BRP-Rotax
Maintenance Manual
SECTION 76
ENGINE CONTROL
1) Table of contents
SECTION 76
ENGINE CONTROL
1) Table of contents .................................................................................... 76-00-00 / 1
2) Systems description .................................................................................76-00-00 / 3
2.1) Turbocharger control (only on 914 Series) .................................... 76-00-00 / 3
2.1.1) Control of boost pressure in the airbox .............................76-00-00 / 3
2.1.2) Target pressure reduction................................................76-00-00 / 8
2.1.2.1) Target pressure reduction at overspeeding ................ 76-00-00 / 8
2.1.2.2) Target pressure reduction at excessive airbox
temperature ................................................................76-00-00 / 9
2.1.2.3) Target pressure reduction by limiting the compressor
pressure ratio .............................................................. 76-00-00 / 10
2.1.3) Lamp output connections on the TCU ..............................76-00-00 / 11
2.1.4) Three-way solenoid valve .................................................76-00-00 / 12
2.1.5) PC interface......................................................................76-00-00 / 12
3) Maintenance ...........................................................................................76-00-00 / 13
3.1) Control system of the turbocharger (only on 914 Series)............... 76-00-00 / 13
3.1.1) Checking the turbocharger control unit (TCU) by means
of a communication program ............................................76-00-00 / 13
3.1.1.1) Functions of the communication program ..................76-00-00 / 13
3.1.1.2) Required items ...........................................................76-00-00 / 13
3.1.1.3) Scope of the communication program........................76-00-00 / 15
3.1.1.4) Application of the communication program ................ 76-00-00 / 17
3.1.1.5) Checking the components of the turbocharger control76-00-00 / 28
3.1.1.6) Checking the throttle valve position ............................76-00-00 / 29
3.1.1.7) Recalibration of the throttle position ........................... 76-00-00 / 31

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