 |
|||
|
|
|||
|
Page Title:
ENGINE STARTS BUT IDLES ROUGHLY - continued |
|
||
| ||||||||||
|
|
 TM 10-3930-673-20-1
4. ENGINE STARTS BUT IDLES ROUGHLY (CONT).
2
KNOWN INFO
TEST OPTIONS
Idle speed OK.
Visual inspection.
Are high pressure fuel lines,
POSSIBLE PROBLEMS
REASON FOR QUESTION
fittings, sealing washers,
High pressure fuel leak.
If high pressure fuel leaks, engine
and/or valve seals free from
Air in fuel system.
will not run smoothly.
leaks?
Fuel contaminated.
Fuel transfer pump faulty.
Replace lines, fittings,
sealing washers, and/or
NO
valve seals as
necessary (Para 5-11).
YES
3
KNOWN INFO
TEST OPTIONS
Idle speed OK.
Visual inspection.
Is fuel system free from air in
High pressure fuel lines OK.
REASON FOR QUESTION
fuel lines?
POSSIBLE PROBLEMS
If air is in fuel system, engine will
Air in fuel system.
jerk and/or stall.
Fuel contaminated.
Fuel transfer pump faulty.
Check fuel flow and
NO
bleed system as
necessary (Para 5-11).
YES
2-636
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals