BLEEDING THE FUEL SYSTEM
If the boat runs out of fuel, or whenever any part of the system between the fuel tank and fuel injection pump has been
disconnected, the fuel system will have to be bled.
Engines Equipped with C.A.V. DPA Rotary Type Fuel Injection Pumps
1.
Loosen the air vent screw on the side of the governor housing (refer to fig. 8(a) (b) (c) (d) (e) NOTE: Two wrenches
may be required for 6.354 engines if the screw is coated with paint.
2.
Loosen the vent attached to one of the two hydraulic head locking screws. Refer to figs. 8(f) (g) (h) (i). Unscrew
vent plug on top of fuel filter (if equipped).
3.
Operate priming lever on fuel transfer pump (if this is not possible, the camshaft driving the pump lever may be on
maximum lift; turn engine one revolution) and when fuel, free from air bubbles, issues from each venting point,
tighten the screws in the following order:
1.
Fuel Filter Cover Vent Screw.
2.
Head Locking Screw.
3.
Control Gear Vent Screw.
4.
Slacken the pipe union nut (See Fig. 8(j) (k) (I) at the pump inlet, operate the priming lever and retighten when fuel
free from air bubbles, issues from around the threads.
5.
Slacken union nuts at the injector ends of two of the high pressure pipes.
Fig. 8 (a) 4.108
Fig. 8 (b) 4.154
Fig. 8 (c) 6.354, T6.354
For newer engines see 11 (d)
Fig. 8 (d) T6.354 MGT
Fig. 8 (e) 4.236
Fig. 8 (f) 4.236
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