COOLING
SYSTEM
from the lower part of the radiator. The
thermostat is fully open at 197°F. (92OC.)
THERMO
CLOSED
Fig
3
Circulation of Water before
the
Ther-
mostat has opened.
and at this stage the by-pass is sealed
off, this sealing off avoids loss of cooling
efficiency when it is most required (Fig. 4).
THERMO
OPEN
FULLY
OPEN
Fig.
4
Circulation when the Thermostat
L
open.
The radiator temperature for normal motor-
ing should not exceed 185°F. (85°C.).
NOTATION FOR FIG.
5
Zef.
Qo. Description
1 Thermostat Housing.
2 Studs for Top Plate.
3
Studs for Outlet Cover.
4 Thermostat.
5
Outlet Cover.
6 Outlet Cover Joint Washer.
7
Nut for securing Outlet
Cover.
8
Lock
Washer for Nut
9 Top Plate.
.O
Top Cover Joint Washer.
.l
Nut for securing Top Plate
.2
Lock
Washer for Nut.
.3
Thermo Housing Joint
!O
Lock
Washer for securing
Nut.
!l
Thermo Housing
Attachment Bolt.
!2 Top Hose.
!3
Supergrip Hose Clip
!4 Bv-Pass Hose.
up to
Commissior
No. TS.1201
-
Washer.
.4
Thermostat Housing.
.5 Studs for Outlet Cover.
.6
Thermostat.
.7
Outlet Cover.
.8
Outlet Cover Joint Washer From
19 Nut for securing Outlet
. Commissior
Cover. No. TS.1201
I
!5 shpergrip Hose Clip.
!6
Lower Hose.
!7
Lower Hose Connecting Pipe.
!8 Supergrip Hose Clip.
5.
TO REMOVE
THE
THERMOSTAT
HOUSING
(with
thermostat)
(Fig.
g)
(a)
Drain the cooling system.
See
page 1.
(b)
Disconnect the top and by-pass hoses.
(c)
Loosen the nuts of the thermostat
cover, and remove the lower nut to
release the petrol pipe clip.
(d)
Remove the thermo
uge capillary
the left hand side.
tr
tube by withdrawing
e gland nut at
(e)
The thermostat hous
can
be
re-
?
moved by
withdrawal
o the two bolts
attaching it to the combustion head.
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