Rotax 582 UL series Operator's Manual page 50

7.1) Cooling system
Page 7-2
January 01/2018
Engine cooling is performed by liquid cooled cylinders and cyl-
inder head.
The cooling system is in a two circuit arrangement.
The cooling liquid is supplied by a integrated pump in the en-
gine through the cylinders and the cylinder head to the radiator.
The cooling system has to be installed such that vapour coming
from the cylinders and the cylinder head can escape to top via
a hose either into the water tank of the radiator or to an expan-
sion chamber.
The expansion tank is closed by a pressure cap (with excess
pressure valve and return valve). At temperature rise of the
coolant the excess pressure valve opens and the coolant will
flow via a hose at atmospheric pressure to the transparent over-
flow bottle. When cooling down, the coolant will be sucked back
into the cooling circuit.
Figure 1
1 Crankcase
Cylinder head
3
5 Radiator
Hose from cylinder head to
7
radiator
Temperature gauge for
9
cooling water
BRP-Rotax
Cylinder
2
Water pump
4
Hose from radiator to water
6
pump
Radiator screw cap, with ex-
8 cess pressure valve and re-
turn valve
10 Overflow hose
Effectivity: 582 UL
Edition 3 / Rev. 0