Perkins 1106C - Engine Has Early Wear

48 KENR6933
Troubleshooting Section
a. Check the leak off from the electronic unit
injectors when
the engine is cranked at an
engine speed that is greater than 150 rpm for
30 seconds.
b. If the leak off from the electronic unit injectors
isgreaterthan0.05L(3.0in
3
) for a six cylinder
engine or if t
he leak off from the electronic
unit injectors is greater than 0.035 L (2.0 in
3
)
for a four cylinder engine, replace all of the
electronic u
nit injectors. Refer to Disassembly
and Assembly, “Electronic Unit Injector -
Remove” and Disassembly and Assembly,
“Electroni
c Unit Injector - Install”. If the engine
will not start, repeat the procedure from “High
Pressure Fuel System”.
c. If the leak off from the electronic unit injectors
is less than 0.05 L (3.0 in
3
) for a six cylinder
engine or if
the leak off from the electronic unit
injectors is less than 0.035 L (2.0 in
3
)forafour
cylinder engine, check for leakage from the
pressure r
elief valve in the fuel rail. If there is
no leakage from the pressure relief valve in the
fuel rail, repeat this procedure from Test Step 2.
d. If there is leakage from the pressure relief
valve in the fuel rail, replace the fuel rail and
then atte
mpt to start the engine. If the engine
will not start, repeat the procedure from “High
Pressure Fuel System”.
4. If the actual pressure in the fuel rail is greater
than 20 MPa (2900 psi), perform the following
procedu
re:
a. Use the electronic service tool to perform an
injecto
r solenoid test.
b. If an electronic unit injector fails the solenoid
test, re
place the faulty injector and then attempt
to start the engine. If the engine will not start,
check the injection timing of the fuel rail pump.
Refer t
o Systems Operation, Testing and
Adjusting, “Fuel Injection Timing - Check.”.
c. If the i
njection timing is correct and the engine
will not start, proceed t o “Glow Plugs”.
d. If the t
iming of the fuel rail pump is incorrect,
adjust the timing. Refer to Systems Operation,
Testing and Adjusting, “Fuel Injection Timing
- Chec
k”. Attempt to start the engine. If the
engine will not start, proceed to “Glow Plugs”.
Glow P
lugs
Note: Faulty glow plugs will only affect engine starting
when t
he ambient temperature is below 10 °C (50 °F).
1. Check the operation of the glow plugs. Refer to
Systems Operat
ion, Testing and Adjusting, “Glow
Plugs - Test”.
2. If necessary,
replace faulty glow plugs. Refer to
Disassembly and Assembly, “Glow Plug - Remove
and Install”.
3. Attempt to start the engine. If the engine will not
start, proceed to “Valve Lash”.
Valve Lash
1. Check the val
ve lash. Refer to Systems Operation,
Testing and Adjusting, “Engine Valve Lash -
Inspect/Adjust”.
2. Attempt to start the engine. If the engine will not
start, proceed to “Low Compression (Cylinder
Pressure)”.
Low Compression (Cylinder Pressure)
1. Perform a compression test. Refer to Systems
Operation, Testing and Adjusting, “Compression
-Test”.
2. If low compression is noted on any cylinders,
investigat
e the cause and rectify the cause.
Possible causes of low compression are shown
in the follo
wing list:
•
Loose glow plugs
•
Faulty piston
•
Faulty pis
ton rings
•
Worn cylinder bores
•
Worn valves
•
Faulty cyl
inder head gasket
•
Damaged cylinder head
3. Perform all necessary repairs.
4. Ensure tha
t the repairs have eliminated the fault.
i02413823
Engine Has Early Wear
Note: This
is not an electronic system problem.