Quantcast FUEL PRIMING PUMP, FUEL TRANSFER PUMP

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3500 ENGINES
DISASSEMBLY AND ASSEMBLY
FUEL PRIMING PUMP, FUEL TRANSFER PUMP
REMOVE FUEL PRIMING PUMP
1258-11
1.
Close the fuel supply line to the engine.
2.
Remove the bolts and clamp (1) from the pump.
Remove bolts (2) and remove fuel priming pump
3.
(3) and the gasket from the fuel filter housing.
INSTALL FUEL PRIMING PUMP
1258-12
1.
Put priming pump (1) and the gasket in position
and install the clamp and bolts to hold it.
2.
Open the fuel supply line to the engine.
REMOVE FUEL TRANSFER PUMP
1256-11
1.
Close the fuel supply line to the engine.
2.
Disconnect fuel lines (2) from fuel transfer pump
(1).
3.
Remove the four bolts to remove fuel transfer
pump (1) from the engine.
INSTALL FUEL TRANSFER PUMP
1256-
12
1.
Make a replacement of the O-ring seal on the
fuel transfer pump if necessary.  Put clean
engine oil on the seal.
2.
Put fuel transfer pump (1) in position on the
engine oil pump. Make sure the drive coupling
for the fuel transfer pump is engaged correctly
with the engine oil pump shaft.
3.
Install the bolts that hold the fuel transfer pump.
4.
Connect fuel lines (2) to fuel transfer pump (1).
5.
Open the fuel supply line to the engine and use
the fuel priming pump to remove (bleed) the air
from the system.
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