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Page Title:
Table 1. Engine Troubleshooting Procedures - continued |
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 TM 9-2320-361-24-1
0008 00
MECHANICAL SYSTEMS TROUBLESHOOTING - DIRECT SUPPORT (Contd)
Table 1. Engine Troubleshooting Procedures (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. If wet compression readings
3. ENGINE CRANKS
increase 50 psi (345 kPa) or more,
BUT WILL NOT START
piston rings or cylinder bores may
(Contd)
be worn. Replace engine
1. Check fuel leakage at inlet side of
Refer to WP 0008 00, table 2,
4. ENGINE STARTS BUT
fuel supply pump (mounted on
malfunction 1, step 4. Replace
STOPS WHEN
fuel injection pump).
defective components.
ACCELERATOR IS
OPERATED
Refer to WP 0008 00, table 2,
2. Check fuel delivery system for
malfunction 1. Replace defective
defective components.
components.
Check fuel delivery system.
Refer to WP 0008 00, table 2,
5. ENGINE STOPS
malfunction 1. Replace defective
WHEN
components.
ACCELERATOR IS
RETURNED TO IDLE
POSITION
1. Check vehicle clutch system for
Refer to WP 0008 00, table 4,
6. POOR
slippage.
malfunction 2. Replace defective
components.
AND/OR LACK OF
POWER
2. Check fuel delivery system for
Refer to WP 0008 00, table 2,
defective parts.
malfunction 1, steps 15. Replace
defective parts.
3. Check fuel injection pump timing
If fuel injection pump timing is
is set within specifications
incorrect, adjust (WP 0069 00).
4. Check turbocharger operation.
If no gauge movement or only a
Remove plug from top of inlet
small pressure increase by gauge is
manifold. Install low pressure
evident, replace turbocharger
gauge with adapter into plug
opening. Start engine and
accelerate engine to full throttle
and immediately decelerate.
Observe pressure gauge readings.
5. Check turbocharger outlet, hose,
1. Tighten base screw and clamps.
intake manifold elbow and gasket
Replace missing components.
for leaks (WP 0057 00).
2. If no improvement during test
run, remove and inspect
turbocharger hose, intake
manifold elbow, and gaskets for
defects. Replace defective
components (WP 0057 00).
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