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Rotax OM-912 Installation Manual

Rotax OM-912
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d04926.fm
INSTALLATION MANUAL
BRP-Powertrain
Effectivity: 912 Series
Edition 2/Rev. 0
78-00-00
page 5
August 01/2012
2) Exhaust system requirements
General note
2.1) Technical data
See Fig. 3.
- Average radius of exhaust manifold: at least 40 mm (1.57 in.)
- Inner diameter of manifold pipe: at least 28 mm (1.10 in.)
- Volume of damping element: approx. 5 l (1.32 USgal)
- Back pressure at maximum power: max. 0.2 bar (2.9 psi) measured in
each case approx. 100 mm (3.94 in.) beyond the end of the exhaust
flange)
2.2) If a GENUINE-ROTAX exhaust is not used
General note The four prefitted exhaust sockets with exhaust flange and lock nuts must
be used.
Exhaust sockets material: X6CrNiTi 1810 (DIN 1.4541)
Tightening torque of M8 lock nuts: 15 Nm (133 in.lb).
NOTE: The exhaust flange does not touch the cylinder head.
Graphic
Fig. 3 08810
WARNUNG
NOTICE
Install heat shields in required areas (fuel, oil, coolant
hoses or tubes) and/or on the electronic components.
Because of the high temperatures, provide suitable
protection against accidental contact.
WARNUNG
NOTICE
Secure exhaust system by suitable means according
to installation requirements (Lockwire, heat-resistant
silicone to dampen the exhaust spring etc.).

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Rotax OM-912 Specifications

General IconGeneral
BrandRotax
ModelOM-912
CategoryEngine
LanguageEnglish

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