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

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.
12.4.1) Measurement of cylinder head temperature and coolant exit
Effectivity: 912 Series
Edition 1 / Rev. 0
BRP-Rotax
INSTALLATION MANUAL
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 to lose
the advantages of the high boilling point.
Fig. 23
00327
temperature
There are two temperature sensors (1) on the cylinder 2 and 3 for
measuring the cylinder head temperature. During flight test the place
with the highest cylinder head temperature must be found, this can vary
with different engine installation (cowling or free installation, tractor or
pusher, fight speed etc.).
2
3
1
DO NOT
ADD WATER
TO THIS SYSTEM
STOP!
EVANS NPG+
WATERLESS
1
COOLANT ONLY!
Fig. 22
07012
page 50
May 01/2007