Liquid-Cooling System; Cooling Circuit Diagram - Bombardier-Rotax 462 Operator's Manual

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LIQUID - COOLIIJG SYSTEM
The coollng
liquid
16 Dupplied by a puBrp throu8h the
cyllnders and the cylinder head to the radlator.
The coolLng
aysteh haa to be Lnatalled
ao that vapour cot[lng froh the
cylinders and tbe cylinder head can be releaaed to top through
a blg tube elther lnto the watet' tsnk o! the radLator or to
a.n expanBion charnber:.
As cooling liquid,
use water in warrn peniods and anti-freeze
mixture In froat periods.
Attention
1) Check cooling
liquld before every operation
and refill,
i f n e c e s s a r y .
The averaEe tenperature
of cooling
Liquld shouLd be
naxirnurn 959.
In case of excessive
tenperature,
60 - Sooc
look for
the reason (liquld
quantity,
radiator
or tubes
blocked,
punp resp.
irDpeller
defective,
too much anti-
f r e e z e i n t h e w a t e l e t c . ) .
J)
The cooLing effect
is reduced by anti-freeze additives
(under certain
circunstances even consi-derably).
4) Before opening the cooling tank cap, put a cloth
over
it
and turn the cap only partially
off, Suilden opening
of the cap can reault
in watet' boil-ing
over and scald
inj uries.
fo)
3
4
5
6
qrankcase
cyLinaler
cylinder
heaat
ltater pump
raaliator
tube fron radiator:
to engine
tube from cylinder
heaal to raaliator
expansion eharDber
tenperatur'e gauge for cool,ing water
e
c i r c u i t
\s./
I
9
c o o l i n
-@.