ENGINE
to ensure maximum filtration. To renew
the element proceed as follows
:-
(a)
Clean the outside of the filter casing.
(b)
Unscrew the centre bolt and remove
the filter casing and element.
NOTE-The paper element, its perforated
outer cover and element tube
forms a complete element assem-
bly.
Ensure that the top seal is re-
tained in position in the groove
in the filter head.
(c) Withdraw the element and clean the
inside of the casing.
(d)
Insert a new element into the filter
casing.
(e)
Fit the filter and new element to the
filter head ensuring that the spigot
formed on the head enters the centre
tube of the element squarely. Tighten
the centre bolt
sufficiently to ensure an
oil-tight joint.
(14-16
lbs. feet.)
(f)
Run
the engine for a few minutes and
inspect the filter for leaks. If leakage is
noted between the filter casing and the
head, the centre bolt must be un-
screwed and the casing and element
withdrawn.
A
new top seal should then
be fitted. If leakage occurs at the
bottom of
-
the filter, withdraw the
casing and element, remove the cir-
clip from the centre bolt and withdraw
the bolt from the casing
;
collect the
element support, bolt seal, washer and
spring. Ease the remaining seal out of
the bottom of the casing and fit a new
seal in its place. Insert the centre bolt
and fit the spring, the washer, a new
bolt seal and the element support on to
the part, fit
circlip into its groove in the
bolt. Place the element inside the
casing and offer up the assembly to the
filter head, screw the centre bolt home.
A
certain quantity of oil
will
be
lost due
to the removal of the filter casihg, and
the sump should
be
topped up after
assembly of the filter.
The filter casing should not be dis-
turbed until element renewal is re-
quired. To do this invites the hazard
that the accumulated dirt on the out-
side of the filter may
be
allowed to
contaminate the inside; thus being
BOLT
SEAL-
WASHE.
/
I
FlLTEP
CASING
ELEMENT
SUPPORT
CEUTRE
BOLT
Fig.
29
The
Purolator
Oil
Filter.
carried into the bearings when the
engine is re-started.
Do no attempt to reset the pressure
relief valve which is incorporated
in
the
filter head. This is the main engine
pressure relief valve and is set at the
works to a predetermined figure.
19.
REMOVAL
OF
ENGINE
AND
GEAR-
BOX
AS
A
(a)
Disconnect the battery. Turn off
petrol at shut-off cock.
(b)
The bonnet is removed by removing
four hinge nuts, two at each hinge.
(c)
Drain off the cooling fluid by opening
the taps, one at the base of the radiator
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