Check Cooling System - Efficiency Of The Cooling System; 1) Measurement Of Cylinder Head Temperature And Exit Temperature - Rotax 912 ULS 3 Installation Manual

◆ NOTE:
Marking of the coolant to be used
■ CAUTION:
Example: EVANS NPG+. See Fig. 22.
1 Warning sticker
2 Radiator cap
3 Opening pressure information of radiator cap.

12.4) Check cooling system - Efficiency of the cooling system

For a measurement of the cooling system the maximum values for coolant exit
temperature and cylinder head temperature must be found. According to the
current specifications.
Effectivity: 912 Series
Edition 1 / Rev. 1
BRP-Powertrain
INSTALLATION MANUAL
When using EVANS NPGR, NPG+ or added pure ethylene
glycol as a coolant , note that these fluids have a flammability
rating 1 (classification LOW at a scale from 0 to 4). The
mentioned coolants are complying according to their material
safety data sheet with a flammability classification, which has
only low danger and a low risk of flammability. To date, no
cases in engine operation or flight operation, laboratory
conditions or from the field were reported, which show unsafe
conditions of ROTAX aircraft engines in combination with the
relevant coolants.
The coolant to be used and its concentration (percentage water
rate) must be communicated to the owner in the correct form.
Waterless coolant must not mix with water, as otherwise it will
lose the advantages of a high boilling point.
Fig. 23
00327
2
3
1
DO NOT
ADD WATER
TO THIS SYSTEM
STOP!
EVANS NPG+
WATERLESS
1
COOLANT ONLY!
Fig. 22
07012
page 50
May 01/2009