Rotax 914 F, Installation Manual

Page: 35 / 102

Reference Modification-No.
- 0 -
Page
35
Date
1996 05 10
Install
914 F
12.6) Feasible location of radiator
See illustration 20.
The expansion tank
Q
must always be positioned at the highest point of the cooling
system.
■
ATTENTION: If necessary, the radiator outlet opening
I
may be max. 1,5 m
( 5 ft) above or below water inlet bend
T
on water pump (see ill. 20).
◆
NOTE: On the standard engine version the expansion tank
Q
is fitted on top
of the engine (see ill. 20).
For proper operation of the cooling system the expansion tank
Q
with pressure cap
W
has to remain for all possible engine positions on the highest point of the cooling
circuit.
Additionally the system needs an overflow bottle
U
where surplus coolant is collected
and returned back into the circuit at the cooling down period.
◆
NOTE: For proper operation keep hose to overflow bottle as short and small
as possible.
■
ATTENTION: To warrant the proper operation of the cooling system the delivery
head between overflow bottle and expansion tank must not exceed
250 mm (10").
Requirements on the overflow bottle
U
➪
transparent material
➪
unaffected by temperatures from -40
°
C (-40
°
F) to +125
°
C (257
°
F)
➪
resistant against 100% Glycol and any other anti freeze agent
➪
possible to vent
Y
➪
volume c . 0,5 l (.13 us gal)
◆
NOTE: The overflow bottle ought to be furnished with a label indicating function
and content.
▲
WARNING: Ensure that the overflow bottle will never be empty, otherwise air will
be sucked into cooling circuit with ill effect to safe operation of the
engine.
Ill. 20
Q Q R R
U U
I I
T T
max. 1,5 m
W W
E E
Y Y
max. 250mm