TM 9-2320-272-24-4
5-36. FUEL INJECTION PUMP MAINTENANCE (Contd)
d. Cleaning and Inspection
1.
For general cleaning instructions, refer to para. 2-14.
2.
Inspect plunger (1) for scratches and scoring. Replace plunger (1) and barrel (5) if plunger (1) is
scratched or scored.
3.
Inspect delivery valve (4) for wear and scoring. If worn or scored, replace delivery valve (4).
NOTE
Replace all camshaft bearings if camshaft requires replacement.
4.
Inspect camshaft (7) for scratches and gouged lobes (6). If lobes (6) are scratched or gouged, replace
camshaft (7).
NOTE
Perform steps 5 through 7 if camshaft and endplate bearings
require replacement.
Press roller bearing (2) from end plate (3).
5.
Remove nut (10) and lockwasher (9) from camshaft (7). Discard lockwasher (9).
6.
Press bearing (8) from camshaft (7).
7.
Inspect tappets (11) for wear or scratches. If worn or scratched, replace tappets (11).
8.
Inspect six spacers (14) in fuel pump housing (13) for burrs, scratches, and nicks. If burred,
9.
scratched or nicked, replace spacer (14).
NOTE
Perform steps 10 through 12 if spacer requires replacement.
Bend edges of spacers (14) in towards center of port (12).
10.
11.
Drive six spacers (14) out through top of fuel pump housing (13). Discard spacers (14).
12.
Remove six O-rings (15) from fuel pump housing (13). Discard O-rings (15).
For general inspection instructions, refer to para. 2-15.
13.
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