TM 10-3950-672-24-2
Lift Pump - Replacement
Preparatory Step:
Disconnect the Iow pressure fuel lines
10mm
Remove the lift pump and complete the following steps.
Inspect the camshaft lever and the return spring for
excessive wear.
To inspect the lift pump, pour clean diesel fuel or engine
oil into the inlet connection and perform the following
test:
Inspect the diaphragm by blocking the fuel inlet line with
your finger and operating the priming lever.
A good pump will have suction that will not bleed down
until the finger is removed from the inlet.
On standard lift pumps, parts replacement is not
practical; the pump is serviced as an assembly. An
optional lift pump is available which can be cleaned and
repaired with a minor repair kit.
Clean the mounting surface on the cylinder block.
10mm
Install the lift pump with a new gasket.
Torque Value: 24 N [18 ft-lbs]
m
5-88