ENGINE
Fuel filter
Remove
the
retaining
nut,
pick
out
"0"
ring,
and take
out
the element.
Fuel
injection
pump
(1) Disconnect fuel injection pipes from
delivery valve holders.
(2) Removing the
pump
mounting
bolts allows
the
pump
to be taken down.
Just
before
lifting the
pump
off, have
the
tie rod
disengaged from the control rack inside:
to gain access to this rod, the side cover
must be removed.
(3)
Place the removed
pump
on
the bench, and
disassemble each pumping element
in
the
following manner:
During this disassembly, be sure to
measure the thickness
of
the adjusting
shims (indicated
as
(17) in the exploded
view) and write down the reading and
also the
number
of
shims
as
reference
data for reassembly.
(a) Remove delivery valve
holder
(I).
(b) Pick
out
delivery valve spring, valve (2)
and
"0"
ring.
(c) Remove gasket and delivery valve seat.
(d) Straighten the lock plate, which restrains
the
tappet
guide pin; push in the
tappet
(18)
just a little and pull
off
the guide
pin with pincers. Take
out
the
tappet
(18).
Shims (17) and lower seat (16) will come
out.
(e)
Pick
out
spring
(15)
and
upper
seat
(14).
([) Pull down and remove pinion
(13).
(g) Draw
out
plunger and barrel (3) from
the delivery valve side
of
pump
housing.
2-36
Be
sure to group
the
delivery valve,
plunger and barrel, so
that
these and
related parts (pinion, spring, seats and
shims) will be restored
to
the
place
to
which they belong.
(1) Valve holder
(2) Delivery valve
o
II
10
1
/
~cu
.~12
~~13
@~14
I-iS
@---IS
©-17
[9----18
(11) Plate
(12) Control rack
(3) Plunger and barrel (13) Control pinion
(4) Air vent screw (14) Upper seat
(5) Hollow screw (15) Plunger spring
(6) Pump housing
(7) Return spring
(8) Stopper
(9) Adjusting plate
(1
0) Tappet guide pin
(16) Lower seat
(17) Adjusting shim
(18) Tappet
(19) Ungleich set plate
(20) Ungleich set spring
Fuel injection pump - Exploded
view
(h) Remove the smoke-set
stopper
by pulling
off
split pin and taking
off
washer and
return
spring. Draw
out
control rack (12).
Removing plunger
P
1f
No
(4
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