Cold Weather Operation - Rotax 912 iS Sport Operator's Manual

3.8) Cold weather operation

Coolant
Lubricant
Cold start
Icing
Remedy
Page 3-14
January 01 2019
Generally, an engine service should be carried out before the
start of the cold season.
For selection of coolant and mixing ratio, see
For selection of oil, see table of Lubricants
• As performance of electric starter is greatly reduced when
hot, limit starting to periods not much longer than 10 sec.
Remedy - Cold start
Step Procedure
1 Use of multigrade oil with the low end viscosity code of 5
or 10.
2 Check electrode gap of spark plugs and if worn fit new
spark plugs.
3 Preheat engine.
Icing due to water in fuel.
Fuels containing alcohol always carry a small amount of water
in solution. In case of temperature changes or increase of alco-
hol content, water or a mixture of alcohol and water may settle
Water in fuel will accumulate at the lower parts of the fuel sys-
tem and leads to freezing of fuel lines, filters or jets.
• Use non-contaminated fuel (filtered through suede)
• Generously sized water separators
• Fuel lines routing inclined and without undrained low points
• Prevent condensation of humidity, i. e avoid temperature dif-
ferences between aircraft and fuel
BRP-Rotax
ATTENTION
and could cause troubles.
Chapter 2.3.
Chapter 2.5.
Effectivity: 912 i Series
Edition 2 / Rev. 0