Cub Cadet Yanmar 3TNV72 User Manual
Page 185
FUEL SYSTEM
7-24
TNV IDI Service Manual
Fuel Injectors
Figure 7-30
6. Remove the injector nozzle gaskets
(Figure 7-30, (5)) and protector
(Figure 7-30, (6)) from the cylinder head.
Testing of Fuel Injectors
1. Thoroughly clean the fuel injector nozzle using
clean diesel fuel and a brass wire brush.
2. Visually inspect the fuel injectors and nozzle
protectors for deposits or damage. Clean, repair
or replace as necessary.
Note: Test the fuel injector using an injection
nozzle tester. Operate the tester
following the information provided by the
tester manufacturer. Use clean, filtered
fuel or FIE calibration fluid for the test.
3. Using the correct adapter, connect a fuel
injector to a nozzle tester. Aim the fuel injector
into a suitable container to catch the fuel spray
(Figure 7-31).
Figure 7-31
0002213
(1)
(2)
(3)
(4)
(6)
(5)
CAUTION
Never use a steel wire brush to clean
fuel injectors. Damage to the nozzle and
other components is likely to result.
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