Fuel Injection Timing - Check; Fuel Quality - Test - Perkins 1104E Systems Operation Testing And Adjusting

SENR9977

Fuel Injection Timing - Check

Table 3
Required Tools
Part
Part Description
Number
27610032
Timing Pin
1. Set the number one piston at top center on
the compression stroke. Refer to Testing and
Adjusting, "Finding Top Center Position for No. 1
Piston" for the correct procedure.
Note: Do not remove the timing pins after finding top
center on the compression stroke.
Illustration 43
(1) Hole for timing pin for the fuel pump
(2) Hole for camshaft pin
(3) Hole for crankshaft pin
2. Insert the 27610032 Timing Pin through the hole
in the fuel pump gear and through the slot in the
hub. Push the timing pin fully into the hole in the
body of the fuel injection pump.
Note: The 27610032 Timing Pin must be a sliding fit
in the hole in the body of the fuel injection pump.
3. The timing of the fuel pump is correct when all
three of the timing pins are in the position.
Note: If the 27610032 Timing Pin cannot be pushed
into the body of the fuel injection pump, then the fuel
pump gear must be realigned on the hub on the fuel
injection pump shaft. Refer to Testing and Adjusting,
"Fuel Injection Timing - Adjust".
4. Remove all three timing pins and install the
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removed components.

Fuel Quality - Test

Qty
Use the following procedure to test for problems
regarding fuel quality:
1
1. Determine if water and/or contaminants are
present in the fuel. Check the water separator (if
equipped). If a water separator is not present,
proceed to Step 2. Drain the water separator, if
necessary. A full fuel tank minimizes the potential
for overnight condensation.
Note: A water separator can appear to be full of fuel
when the water separator is actually full of water.
2. Determine if contaminants are present in the
fuel. Remove a sample of fuel from the bottom
of the fuel tank. Visually inspect the fuel sample
for contaminants. The color of the fuel is not
necessarily an indication of fuel quality. However,
fuel that is black, brown, and/or similar to sludge
can be an indication of the growth of bacteria or
oil contamination. In cold temperatures, cloudy
fuel indicates that the fuel may not be suitable for
operating conditions.
Refer to Operation and Maintenance Manual,
"Refill Capacities and Recommendations" for
more information.
3. If fuel quality is still suspected as a possible
cause to problems regarding engine performance,
disconnect the fuel inlet line, and temporarily
operate the engine from a separate source of
fuel that is known to be good. This will determine
g01134728
if the problem is caused by fuel quality. If fuel
quality is determined to be the problem, drain the
fuel system and replace the fuel filters. Engine
performance can be affected by the following
characteristics:
•
Cetane number of the fuel
•
Air in the fuel
•
Other fuel characteristics
Testing and Adjusting Section
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35