FUEL INJECTION PUMP (Cont'd)
Timing The
Injection Pump
Timing of the fuel system is done by changing the number
of shims between the injection pump and the engine
block, The timing of the fuel injection pump will be later
when a shim is added, and earlier when a shim si
removed.
A
WARNING
Diesel fuel
or
hydraulic
fluid
under pressure
can penetrate
skin
or
eyes, causing
serious
injury
or
death. Fluid leaks
under
pressure
may
not
be visible. Use a piece
of
cardboard
or
wood
to
find leaks. Do
not
use
your
bare hand. Wear
safety
goggles.
If
fluid
enters
skin
or
eyes,
get
immediate medical attention
from
a
physician
familiar with
this
injury.
W-2072-0496
Remove the number 1 cylinder injector tubeline from the
injector pump.
Install a short pipe to the outlet of the number 1 cylinder
injector port. Point the pipe up (vertical).
With a fuel supply to the injection pump, rotate the engine
in
a clockwise direction. Fuel must flow from the pipe
when the fixed mark F-1 on the crankshaft pulley and the
point comes into alignment [A).
The correct timing for the engine is 25 degrees B.T.D.C.
(#1
cylinder). Add or subtract shims (Item 1)
[B]
as
needed to adjust the
delivery time of the fuel. Each shim
will change the timing 1.5 degrees.
Revised Sept.
90
A
8
-7C-4-
=r
8-03611
B-11493
741,742,743,74305
Bobcat Loader
Service Manual
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