Evector EV-97 EUROSTAR SL MICROLIGHT - Engine Operational Limits; Engine Mount; Engine Cowlings

EV-97 Eurostar SL Microlight Maintenance Manual GEN/EUR/04 Issue 4 13
(1) With 50/50 Ethylene Glycol/water coolant mix.
(2) Service Bulletin SB/EUR/006 Issue 1 is complied with.
WARNING
The Rotax 912 UL has not been certified as an aircraft engine and its failure may occur at
any time. The pilot is fully responsible for consequences of such a failure. Never fly over
an area on to which you cannot safely land in the event of an engine failure.
Note 1: propeller pitch to be set to achieve 4600rpm static at full throttle.
2.18 Engine Operational Limits
Parameter
Minimum
Limit
(red line)
Normal
Operating
(green arc)
Caution
Range
(yellow arc)
Maximum
Range
(red line)
Engine speed
[RPM]
1400 1400-4800 4800-5800 5800
Cylinder Head
Temp.
(CHT)
R 912
UL
(80 hp)
- -
-
-
150 °C
(Evans
coolant)
120 °C
(glycol coolant)
Exhaust Gas
Temp. (EGT)
- - - 880 °C
1616 ° F
Oil
Temp.
R 912 UL
(80 hp)
50 °C
122 °F
90-110 °C
194-230 °F
50-90 °C
122-194 °F
110-140 °C
230-284 °F
140 °C
284 °F
Oil
Pressure
0.8 bar
12 psi
2 - 5 bar
29 – 73 psi
0.8 - 2 bar
12 - 29 psi
5 – 7 bar
73 – 102 psi
7.0 bar
102 psi
cold engine
starting
2.19 Engine Mount
The engine mount is welded from chrome-molybdenum tube and is attached to the firewall by 4
bolts. The assembly incorporates 4 anti-vibration mounts (Silent blocs).
2.20 Engine Cowlings
Two composite cowlings, upper and lower, cover the power plant. Both cowlings are coated
internally with fireproof paint. The upper cowling is connected to the lower cowling by quarter turn
fasteners and is easily removed for pre-flight inspections. Removal of the lower cowling requires
removal of the screws supporting the radiator to the front of the cowling, then removal of the
screws supporting the lower cowling’s rear edge.
Engine cowlings disassembly and assembly
• The upper cowling: The disassembly and assembly are both easy by releasing
the quick-closing locks (or screws). The upper cowling is usually removed during