d04924.fm
INSTALLATION MANUAL
BRP-Powertrain
Effectivity: 912 Series
Edition 2/Rev. 0
75-00-00
page 7
August 01/2012
1.3) Coolant types
General note In principle, 2 different types of coolant are permitted:
Conventional
coolant
Conventional coolant is recommended as it commonly available and has a
greater thermal heat transfer capability. Its limitation is its lower boiling
point.
Waterless cool-
ant
Waterless coolant is recommended if the design of the aircraft can not
maintain the coolant temperature limit.
Mixing ratio
Boiling point Conventional coolant:
Conventional coolant with a rate of 50 % water cannot boil at a tempera-
ture below 120 °C (248 °F) at a pressure of 1.2 bar (18 psi). The max.
coolant temperature limit is therefore 120°C (248 °F).
Permanent monitoring of coolant temperature and cylinder head tempera-
ture is necesssary.
Description
1 Conventional coolant based on ethylene glycol
2 Waterless coolant based on propylene glycol
When selecting a suitable coolant, the information in
Service Instruction SI-912-016, latest issue, must be
observed.
The manufacturers instructions regarding the coolant
must be observed.
Mixing ratio
Description Concentrate Water
Conventional coolant 50 % 50 %
Some conventional coolant is available pre-mixed by the manufacturer. In this case do
not mix with water, instead follow the manufacturers instructions..
Waterless coolant 100 % 0
To Next Page
Loading...
Need help?
General
