(2) 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.
(3) Sealing test
Plug up the delivery port on the
feed pump and apply compressed
air of 2 kg/cm
2
into the inlet side.
Submerge the feed pump in a
container of diesel fuel and check
for air leak.
6.1.4. Injection nozzle
1) General descriptions
Pressurized fuel delivered from the fuel injection pump is sprayed into the combustion
chamber past the injection nozzle at proper spray pressure and spray angle, then burnt
completely to achieve effective engine performance.
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MAINTENANCE OF MAJOR COMPONENTS
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