TM 10-4610-310-14
DIRECT SUPPORT/GENERAL SUPPORT MAINTENANCE
LIGHTWEIGHT WATER PURIFIER
TROUBLESHOOTING PROCEDURES
DIESEL ENGINE
General
Diesel Engine
The table lists the common malfunctions that you may find during the operation or maintenance of the
Lightweight Water Purifier (LWP) diesel engine used on the high-pressure pump module. You should perform the
tests/inspections and corrective actions in the order listed.
This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective actions. If a
malfunction is not listed or is not corrected by listed corrective actions, notify your supervisor.
MALFUNCTION
TEST/INSPECTION
CORRECTIVE ACTION
Inspect fuel pump.
Remove the fuel outlet pipe (2)
from the fuel pump (1). No need to
If fuel is not ejected. Repair or
remove the pipe on injector end
replace. WP 0124 00.
(3). Push down decompression
lever and pull the starter rope,
1. Engine will not start
observe the fuel discharge from the
pump.
Measure the cylinder compression.
If no or little compression is
detected. Replace the piston rings
It should measure between (284-
and seals. WP 0133 00.
355 psi) or (1960 2450 KPa)
Inspect the engine for seized
Replace seized or damaged parts.
2. Engine shuts down undirected
bearings and excessively worn
parts. WP 0122 00.
Inspect the speed governor for
Install properly. Replace if
3. Engine speed racing or irregular
damage or improper installation.
damaged. WP 0140 00.
Head gasket
Replace. WP 0120 00.
Valve stem seal
Replace. WP 0119 00.
Fuel pump
Replace. WP 0124 00.
4. Oil leaks
Crankcase cover
Replace. WP 0122 00.
Crank shaft oil seal
Replace. WP 0120 00.
0114 00-1
