TROUBLESHOOTING - TM-5-3895-349-14-P0412

TROUBLESHOOTING

TESTING AND ADJUSTMENT

Problem

Cause

Correction

5. NOT ENOUGH POWER

Governor Linkage

Make adjustment to get full travel of linkage. Install new parts for those that have

(CONT.)

damage or defects

Defect in Timing Advance Unit

Replacement of timing advance unit is needed.

Wrong Valve Clearance

Make adjustment according to Specifications.

Defect in Fuel Injection Nozzle

Run engine at rpm that gives maximum misfiring or rough running. Then loosen a

fuel line nut on the injection line for each cylinder, one at a time. Tighten each fuel

line nut before loosening the next one. Find the cylinder where loosening the fuel

line nut does not change the way the engine runs. Test the fuel injection nozzle for

that cylinder. Install new parts where needed.

Wrong Fuel Injection Timing

Make adjustment to timing.

Check for correct full power with solenoid removed. If the engine has full power with

Fuel Shut-off Solenoid or Shut-off

the solenoid removed, the problem is in the solenoid or the shutoff linkage. Check

Linkage Causing a Restriction in

for free travel of the

the Travel of the Shaft for the

Sleeves

Constant Bleed Valve Stays Closed

Replace constant bleed valve.

TOO MUCH VIBRATION

Loose Bolt or Nut Holding Pulley or

Tighten bolt or nut.

Damper

Pulley or Damper Has A Defect

Install a new pulley or damper.

Engine Supports Are Loose,

Tighten all mounting bolts. Install new components if necessary.

Misfiring or Running Rough

Make Reference to Item 2.

7. LOUD COMBUSTION NOISE

Bad Quality Fuel

Remove the fuel from the fuel tank. Install a new fuel filter element. Put a good

(SOUND)

grade of clean fuel in the fuel tank.

Defect in Fuel Injection Nozzle

Install a new fuel injection nozzle.

Wrong Fuel Injection Timing

Make adjustment to timing.