11
WATER
PUMP
If any play developed on water pump shaft or water leaking, disassemble pump
in
the
following procedure and service
as
required.
First, remove fan coupling flange
with
puller and take off snap ring. Then open rear
cover and take
out
inner components. Impeller can
be
pulled
cut
with puller.
Check unit seals and if badly worn
or
affected
in
floating seat surface or carbon worn
off, renew them.
Of new bearings, grease may come
out
a little,
but
this means nothing particularly
wrong.
12
BOLT SCREWING
1) For screwing of main bolts, the necessary instructions were already given
in
Sect. 7, "Re-screwing of
Main
Bolts", Chap. 3.
The
other bolts should be screwed
with reference
to
the
following table.
Nominal Thread
mm
6
8
10
10
12
Pitch
mm
1
1.25 1.25
1.5 1.25
Plated
Kgm
0.9
2.1
4.3
4.0 7.4
(ft-Ib)
(6.5) (15) (31) (29)
(54)
Clamping
kgm
0.7
1.4 3.0 2.8
5.2
Not plated
(ft-Ib)
(5.0) (10) (22) (20)
(38)
2)
Prior
to
screwing the following bolts,
coat
their threads with oil-proof liquid
packing
("atmosit'1 for prevention
of
leakage.
4 lower clamp bolts
on
crank
shaft
rear end oil seal
3 lower clamp bolts on timing gear case
2 clamp bolts on flange plate
to
couple injection pump
2 fixing bolts
on
breather
3)
Packil195
(gaskets) and liquid packings
to
be used are listed below.
-
78-
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