FUEL SYSTEM ADJUSTMENTS

FUEL SYSTEM

TESTING AND ADJUSTMENT

WARNING: If the sleeves on one or more of the

2. Turn the crankshaft CLOCKWISE (as seen from front of

fuel injection pumps have been installed wrong,

engine) until bolt (1) will go into the hole in the drive

damage to the engine is possible if cautions are not

gear for the camshaft.

taken at first starting. When the fuel injection pumps have

been removed and installed with the fuel injection pump

3. Remove the valve cover on the right side of the engine

housing on engine, take the following cautions when first

(as seen from rear of engine). The two valves at the

starting the engine.

right front of the engine are the intake and exhaust

valves for No.1 cylinder.

a. Remove the air cleaner leaving the air inlet pipe

open as shown.

4. The intake and exhaust valves for No.1 cylinder must

now be closed and the timing pointer will be in

b. If the sleeve on pump has been installed wrong and

alignment with the TDC-1 on the damper assembly.

the engine starts to run too fast, put a steel plate

The No.1 piston is now at top center on the compression

over the air inlet opening as shown to stop the

stroke.

engine.

FUEL SYSTEM ADJUSTMENTS

Checking Fuel Injection Pump

Timing; On Engine

The timing of the fuel injection pump can be checked

and changed if necessary, to make compensation for

movement in the taper sleeve drive or worn timing gears.

The timing can be checked and, if necessary, changed

using the following method.

Checking Timing By Timing Pin Method

Tools Needed: 5P2371 Puller.

STOPPING THE ENGINE

3P1544 Timing Pin.

(Typical Example)

1. Remove bolt (1) from the timing pin hole.

FINDING TOP CENTER COMPRESSION POSITION FOR

NO.1 PISTON

No.1 piston at top center (TDC) on the compression

stroke is the starting point for all timing procedures.

1. Remove the plug from timing hole (2) in the front cover.

Put bolt (1) in timing hole (2). The bolt from hole (3)

can be used.

TIMING HOLE BOLT

1. Bolt.

2. Turn the crankshaft CLOCKWISE (as seen from front of

engine) until timing pin (2) goes into the notch in the

camshaft for the fuel injection pumps.

Remove the plug from timing hole (4) in the front

INSTALLING BOLT

cover. Put bolt (3) through the front cover and into the

1. 1D4539 Bolt, 5/16 in.-18NC, 25 in. (635 mm)

hole with threads in the timing gear. The bolt from hole

long. 2. Timing hole. 3. Hole.

(5) can be used.