Rotax 912-UL Repair Manual

11.3) Dimension
sheet
3:
for
cylinder /
piston
engine no.
cylinder
and
piston
positio
n
1)
Cylinder
Checking of the dia. D', D,
and D.
dim.
A
o,,
7A
D2
2) Piston
Weight with rings,
but
without
piston pin
g
Checking of
the
nominaldia.
DN
at
height
37,3
nomlnal
actual
DN
1,,'itin#
rem.
DN
-DN
clearance
3) Grading and Clearance
cylinder
A with
piston
"red"
nomlnal
actual rem.
79,50
=
3,130
79,512=3,1304
79,512=3,1304
D,
ac1.-0,008
D. act.-.0003
7
9,41
=3,12&4
| 7 9,42=3,1
7
9,42=3,1
28
| 7 9,43=3,1
0,08=.0032 | 0,102=.004
cylinder
B with
piston
"green"
Rm:''912-UL

Rotax 912-UL Specifications

General

Displacement	1211 cc
Bore x Stroke	79.5 mm x 61 mm
Compression Ratio	9.0:1
TBO (Time Between Overhaul)	2000 hours
Engine Type	4-cylinder, 4-stroke
Power Output	80 hp
Cooling System	Liquid/air-cooled
Fuel Type	Avgas 100LL or unleaded automotive gasoline
Oil Capacity	3 liters
Fuel System	2 carburetors
Oil System	Dry sump forced lubrication with separate oil tank
Reduction Gear Ratio	2.43:1
Max Continuous Power	75 hp (56 kW)