Rotax 914 F - 3) Assembly of the Complete Exhaust System Inclusive Turbo Charger

Reference Modification no.
- 4 -
Page
190
Date
2002 01 01
Main
914 F
01479
13.5.3) Assembly of the complete exhaust system inclusive turbo charger
See Pic. 151,151/1 and 152.
Turbo charger / turbo charger bracket / exhaust manifold
Remove the 3 upper hex. hd. screws Q M8x16 on turbine housing but slacken
the lower screw only.
Place the turbo charger bracket W on outer side of retaining ring in position
and loosely attach with the 3 screws. Fit 4 studs E M8x19,5/13 with the longer
threaded end (19,5 mm) into turbine housing and tighten to 6 Nm (33 in.lb).
◆ HINWEIS: No stud will be fitted in the top tapped hole R.
Attach muffler T with washers and M8 nuts Y on turbine housing U with
washer and hex. hd. screw I M8x35 on turbine housing. Attach turbo charger
bracket W with washer and hex. hd. screw O M8x16 on support plate and
tighten screw slightly.
Tighten muffler attachment nuts M8 to 25 Nm (220 in.lb).
Fit the exhaust manifold P onto turbine housing using Allen screws { M8x25
and M8 nuts }. Tighten nuts only slightly.
■ ATTENTION: Fasteners for exhaust manifold and turbo charger bracket
will be tightened not before installation on engine is com-
plete, to prevent locking up of stresses.
Installation of the check valve. Refer to chapter 13.2.
Engine suspension / muffler assembly / exhaust bends
Attach engine suspension frame Q with lock washers, Allen screws M10x110
E and M10x35 R on crankcase. See Pic. 148 and 149.
Place spacer q 10,5/17/15 into left arm of engine suspension frame and
attach muffler bracket w with washer and Allen screw e M10x50 on crank-
case.
Re-establish attachment r muffler bracket / engine suspension frame (not in
supply volume of engine). Tightening torque as specified by the aircraft
builder.
Place spacer t 10,5/17/15 into right arm of engine frame.
Attach turbo charger / muffler and turbo charger bracket assembly with Allen
screw y M10x50 and washer plus lock washer on crankcase of engine. The
muffler will be attached by clamp u.
■ ATTENTION: Place clamp in position such that the tension free
zone i comes to rest on edge of muffler bracket.
See Pic. 151.
Re-establish attachment o turbo charger bracket - engine frame (not
in supply volume of engine). Tightening torque as specified by the
aircraft builder.
Tightening torque of the M10 screws = 35 Nm (310 in.lb).
00095
Pic. 151
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