DE08TS Diesel Engines Maintenance of Major Components
5. Testing
a. Suction capacity test
Connect one end of a hose to the inlet side of the
feed pump and immerse the other end of it into the
fuel tank as illustrated.
Hold the feed pump in position about 1 m above the
level of fuel in the fuel tank.
Operate the tappet at the rate of 100 rpm and
check to see if fuel is drawn in and delivered for 40
seconds or so.
b. Delivery test
Make a test with the feed pump mounted on a
pump tester as illustrated.
Operate the pump at the rate of 1,000 rpm and
check to see if the pump delivery is more than 405
cc/15 seconds.
c. Sealing test
Plug up the delivery port on the feed pump and
apply compressed air of 2 kg/cm2 into the inlet
side.
Submerge the feed pump in a container of diesel
fuel and check for air leak.
Mass cylinder
Feed pump
Compressed
air 2kg / cm
2
EQM4023I
EAMC016I
Outlet hose
Feed pump
Inlet hose
EQM4022I
Fuel tank
83
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