TM 5-3895-385-23-1
0040
Table 1. SPN#157, FMI#18 ― Fuel Pressure Lower Than Commanded Pressure -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Connect pressure gauge
adapter to the fuel drain line
from the fuel pressure relief
valve, and run into beaker.
4. Start engine (TM 5-3895-385-
1. If fuel flow, turn keyless engine
10) and run at idle, or if engine
switch to OFF position (TM 5-
fails to start, measure fuel flow
3895-385-10), and replace
output while cranking for 30
pressure relief valve (WP 0337,
seconds.
Vol 2).
2. If no fuel flow, turn keyless
engine switch to OFF position
(TM 5-3895-385-10), restore
equipment to original condition,
and proceed to next test.
5. Disconnect the fuel drain line
from the fuel pressure relief
valve (WP 0337, Vol 2).
6. Connect pressure gauge
adapter to the fuel drain line
from the fuel pressure relief
valve and run into drain pan.
7. Disconnect the fuel drain line
from cylinder head (WP 0331,
Vol 2).
NOTE
Make sure beaker and fuel leak tester line are below the cylinder head connection point.
8. Install fuel leak tester on fuel
drain line port on cylinder head
and block off fuel drain line.
Run hose from fuel leak tester
into beaker (WP 0448, Vol 3,
Figure 50).
0040-6