Inspection Of The Exhaust System And Turbocharger Components; (Only On The 914 Series); 1) Exhaust Bend And Exhaust Manifold; 2) Muffler - Rotax 912 Series Maintenance Manual

3.3)

Inspection of the exhaust system and turbocharger components

(only on the 914 Series)

See Fig. 78-3
Visual inspection of all components.
■ CAUTION:
3.3.1)
3.3.2)
Effectivity 914 Series
Edition 1 / Rev. 0
BRP-Rotax
Maintenance Manual
Because of the high thermal stress, inspect the complete
exhaust system especially for crack formation.
Exhaust bend and exhaust manifold
Visual inspection of all components.
The wear on the walls of the slide fit on the exhaust bend must not
exceed approx. 0.3 mm (0.01 in.). See Fig. 78-7
■ CAUTION:
On older engine versions, observe SB-914-017.
On newer versions, the EGT connections have been displaced
so that the new drip trays can be assembled (screwed to the
airbox).
■ CAUTION:
The flanges of the exhaust bends (3) must not touch
the cylinder heads.
On engines of older design, it is not possible to replace individual parts.
If it becomes necessary to replace one exhaust bend or exhaust
manifold, all 4 exhaust bends including exhaust manifolds must be
replaced.
Muffler:
■ CAUTION:
When inspecting the muffler, also observe SB-914-
006, "Employment of a muffler of reduced noise emis-
sion", latest issue. SB-914-015, "Checking or replace-
ment of the exhaust muffler of reduced noise emis-
sion", latest issue. SB-914-017, "Checking or replace-
ment of exhaust bend", latest issue and SB-914-028,
"Inspection of exhaust muffler", latest issue.
78-00-00
page 11
May 01/2007