Fuel System Service
Priming Fuel System
1. Stop the engine. Unlatch and raise the hood
2. Fill the fuel tank.
3. Install a 3/16" hose over bleed screw. Put other end
of hose into a container to catch fuel (Fig. 38).
4. Pump priming plunger until resistance is felt. Try to
start engine. If engine does not start, go to step 5.
5.Loosen bleed screw a few turns. Pump priming
plunger until a steady stream of fuel comes out of hole
in bleed screw. When fuel stops foaming, tighten bleed
screw during down stroke of priming plunger. Wipe up
any spilled fuel.
NOTE: It may be necessary to bleed air out of the fuel
li
ne, between the fuel filter/water separator and the
injection pump. To do this, loosen the fitting on the
injection pump (Fig. 39) and pump priming plunger until
a steady stream of fuel comes out of fitting. When fuel
stops foaming, tighten the fitting during the down stroke
of the priming plunger. Wipe up any spilled fuel.
NOTE: The high pressure fuel system is self-bleeding.
I
t is not necessary to open the high pressure lines.
Injection Pump Removal
(See Injection Pump Removal in the Engine Overhaul
section.)
Figure 38
1. Primer plunger 2. Bleed screw
Figure 39
1. Injection pump fitting
Injection Pump Repair
NOTE: If the pump needs to be inspected or repaired it IMPORTANT: Clean the injection pump and the area
is recommended that it be done by an authorized CAV around the injection pump before removing or ser-
Lucas ROTO DIESEL service dealer - especially during vicing it. DO NOT spray water onto a hot injection
the warranty period. Repairs by non-authorized dealers pump.
WILL void the pump warranty.
Reelmaster 335-D/3500-D Page 3 - 33
Rev. B
Engine
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