Rotax 912-UL Repair Manual

ll.2) Dimension
sheet
2:
Crankcase
no.: Engine no.:
Split
crankcase
ass'y
into halves.
Carry out
generalvisual
inspection
and specific
check
of
all oil
passages
by compressed air;thread
inserts
and
sealing
faces.
Aftenarards
place
main
bearing halves in
position
and
join
crankcase,
thighten screws
and
take
readings
of crankshaft and camshaft
bearings.
U
o
o
Fitting
of
crankshaft
no.
amounts
to:
nominal
actual
actual
bearing
max.
I min.
Ao
I
g,
remak
f
journal
alcleara
remark
(di
44,502 mm
1,752in. 1,751 in.
30,021
1,182 in.
30,000 mm
1
,1
81
in.
suppression
box no.:
Tester:
date:
75;'::''1992

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)