Rotax MMH-912 Series - Section 78 Exhaust System and Turbocharger

Effectivity 912/914 Series
Edition 1 / Rev. 3
78-00-00
page 1
October 01/2010
d04781
BRP-Powertrain
Maintenance Manual
SECTION 78
EXHAUST SYSTEM AND TURBOCHARGER
1) Table of contents
SECTION 78
EXHAUST SYSTEM AND TURBOCHARGER
1) Table of contents ....................................................................................78-00-00 / 1
2.) System description ................................................................................. 78-00-00 / 3
2.1) Exhaust system (on the 912 Series) ............................................. 78-00-00 / 3
2.2) Exhaust system (on the 914 Series) ............................................. 78-00-00 / 3
2.3) Turbocharger (only on the 914 Series)..........................................78-00-00 / 3
2.3.1) Exhaust turbocharger .......................................................78-00-00 / 4
2.4) Connections for instrumentation ...................................................78-00-00 / 5
2.4.1) Exhaust gas temperature display (optional) .....................78-00-00 / 5
3) Maintenance ........................................................................................... 78-00-00 / 7
3.1) Disassembly of the complete exhaust system
(on the 912 Series) ....................................................................... 78-00-00 / 7
3.2) Disassembly of the complete exhaust system incl. turbocharger
and engine suspension frame (on the 914 Series) ....................... 78-00-00 / 7
3.3) Inspection of the exhaust system and turbocharger components
(only on the 914 Series) ................................................................78-00-00 / 11
3.3.1) Exhaust bend and exhaust manifold.................................78-00-00 / 11
3.3.2) Muffler: .............................................................................78-00-00 / 11
3.3.3 Turbocharger ....................................................................78-00-00 / 12
3.4) Assembly of the complete exhaust system (on the 912 Series) ...78-00-00 / 16
3.5) Assembly of the complete exhaust system incl. turbocharger
(on the 914 Series) ....................................................................... 78-00-00 / 16
3.6) Bowden cable, rope sheave and spring for wastegate control
(on the 914 Series) ....................................................................... 78-00-00 / 20
3.6.1) Disassembly .....................................................................78-00-00 / 20
3.6.2) Checking of the components ............................................78-00-00 / 21
3.6.3) Assembly and adjustment ................................................78-00-00 / 21
4) Wear limits ..............................................................................................78-00-00 / 23