Fuel Pump Timing - Lister Petter TS1 Workshop Manual

6.Re-connect the speeder spring to the spigot.
If the spigot was turned when the pumps were
removed it must be turned until the hole axis is
at 90° to the camshaft before refitting the spring
when the speeder spring spigot is upright.
Figure 2.27.4 Speed Control Lever
Figure 2.27.4 Speed Control Lever
7.Check the governor setting; refer to "02.31
7. Check the governor setting; refer to "2.31 Setting the Governor".
Setting the Governor".
8. Fit new joints to the fuel pump inspection doors and replace
8.Fit new joints to the fuel pump inspection doors
the doors.
and replace the doors.
9. Replace the fuel pipes.
9.Replace the fuel pipes.
10. Prime the fuel system if it is not self-priming.
11. Check and adjust the pump timing. 10.Prime the fuel system if it is not self-priming.
T SERIES ENGINES WORKSHOP MANUAL
11.Check and adjust the pump timing.

2.28 Fuel Pump Timing

2.28 FUEL PUMP TIMING
he fuel be used to check the timing without the need to
Fuel pump components are manufactured to exacting limits
Fuel pump components are manufactured to
diused dismantle the pump.
and care must be taken to ensure they are returned to their
exacting limits and care must be taken to ensure
respective pumps if more than one pump is dismantled at a time.
they are returned to their respective pumps if more
The fuel pump timing gauge, 317-50518, can be used to check Spill Timing
than one pump is dismantled at a time.
the timing without the need to dismantle the pump.
1.Isolate the fuel supply.
The fuel pump timing gauge, 317-50518, can
2.Remove the fuel pipe from the pump to the
Spill Timing
injector.
3.Unscrew the fuel pump delivery union body (A)
1. Isolate the fuel supply.
and remove it.
2. Remove the fuel pipe from the pump to the injector.
4.Lift out the delivery valve spring seat (B) and
3. Unscrew the fuel pump delivery union body (A) and remove it.
spring (C).
4. Lift out the delivery valve spring seat (B) and spring (C).
ot.
s were
axis is
Figure 02.28.1 Fuel Pump Components
spring
Figure 02.28.1 Fuel Pump Components
5.Carefully lift out the delivery valve (D) taking care
5. Carefully lift out the delivery valve (D) taking care not to
not to disturb the valve seat.
disturb the valve seat.
6.Place these components in a suitable container
6. Place these components in a suitable container of clean fuel.
of clean fuel.
7. Replace the delivery union body (A).
7.Replace the delivery union body (A).
8. Fit a suitable spill pipe.
8.Fit a suitable spill pipe.
9. Ensure the fuel pump rack is in the run position by removing
a cylinder fuel pump housing door and manually moving the 9.Ensure the fuel pump rack is in the run position
fuel pump rack towards the gear end.
by removing a cylinder fuel pump housing door
and manually moving the fuel pump rack towards
the gear end.
10.Turn the flywheel, in the direction of rotation,
until the piston for the cylinder being timed is at
B - Later TS/TR and all TX
TS, TR, TX engines workshop manual
Figure 02.28.1 Fuel Pump Components
5.Carefully lift out the delivery valve (D) taking care
10. Turn the flywheel, in the direction of rotation, until the piston
not to disturb the valve seat.
for the cylinder being timed is at 'FP' on the compression
6.Place these components in a suitable container
stroke.
of clean fuel.
At this position both the inlet and exhaust valves will be
7.Replace the delivery union body (A).
closed.
8.Fit a suitable spill pipe.
11. Connect the fuel supply and bleed the fuel filter and
9.Ensure the fuel pump rack is in the run position
pump.
by removing a cylinder fuel pump housing door
12. Carefully turn the flywheel against rotation until fuel is
and manually moving the fuel pump rack towards
flowing from the spill pipe.
the gear end.
13. Turn the flywheel very slowly in the direction of rotation
10.Turn the flywheel, in the direction of rotation,
until the fuel flow from the spill pipe just stops dripping
until the piston for the cylinder being timed is at
this is known as the 'Spill Point' .
'FP' on the compression stroke.
14. Check the flywheel timing mark.
At this position both the inlet and exhaust valves The flywheel timing mark (FP), which can be seen through
an aperture in the fanshroud, should align with the arrow
will be closed.
on the fanshroud.
11.Connect the fuel supply and bleed the fuel filter
15. If the flywheel mark is not correct, see 'Figure 2.28.2' , the T SERIES ENGINES WORKSHOP MANUAL
and pump.
shims under the fuel pump must be adjusted, see "Timing
12.Carefully turn the flywheel against rotation until
Shims".
fuel is flowing from the spill pipe.
13.Turn the flywheel very slowly in the direction of
rotation until the fuel flow from the spill pipe just
stops dripping this is known as the 'Spill Point'.
14.Check the flywheel timing mark.
The flywheel timing mark (FP), which can be
seen through an aperture in the fanshroud,
should align with the arrow on the fanshroud.
15.If the flywheel mark is not correct, see 'Figure
2.28.2', the shims under the fuel pump must be
adjusted, see "Timing Shims".
Figure 2.28.2 Flywheel Timing Marks
Figure 2.28.2 Flywheel Timing Marks
If the timing is:
If the timing is:
Advanced - Add Shims
Advanced - Add Shims
Retarded - Remove Shims.
Retarded - Remove Shims.
Approximately 1° of flywheel movement can be
Approximately 1° of flywheel movement can be obtained
obtained with a 0.127mm (0.005in) shim.
with a 0.127 mm (0.005 in) shim.
16. Re-check the timing. 16.Re-check the timing.
17. When the correct timing has been obtained remove the spill
17.When the correct timing has been obtained
pipe and delivery union body.
remove the spill pipe and delivery union body.
18. Replace the delivery valve, delivery valve spring and spring
18.Replace the delivery valve, delivery valve spring
seat.
and spring seat.
19. Refit the delivery union body and torque it to 35.0/45.0 Nm
19.Refit the delivery union body and torque it to
(26.0/33.0 lbf ft).
35.0/45.0Nm (26.0/33.0lbf ft).
20. Check that the fuel pump calibration marks are still
20.Check that the fuel pump calibration marks are
aligned.
still aligned.
21. Repeat this procedure for the remaining fuel pumps.
21.Repeat this procedure for the remaining fuel
22. Connect all fuel pipes and torque the pump to injector
pumps.
pipe nuts to:
22.Connect all fuel pipes and torque the pump to
TS/TR - 29.0 Nm (21.0 lbf ft).
injector pipe nuts to:
TX - 22.0 Nm (16.0 lbf ft).
TS/TR - 29.0Nm (21.0lbf ft).
23. Bleed the entire fuel system.
TX - 22.0Nm (16.0lbf ft).
23.Bleed the entire fuel system.
Fuel Pump Timing Gauge
1.Assemble the pipe (A) to the gauge ensuring that
the pipe nuts are tight.
27
inject
3.Conn
delive
4.Bleed
5.Ensu
by re
and m
the ge
6.Turn
prime
7.Turn
the fl
29
arrow
At this
will be
8.Turn
(2.00
9.Slowl
level
gauge
10.Turn
extre
just
11.Che
The
seen
shou
12.If th
unde
"Tim