Engine fails to start start

Fuel tank empty

Fill with fuel and bleed

Clogged pre-filter

Clean Filter

Air in injection pump

Bleed system

Stop control in stop
position

Chang to running position

Leakage in a fuel line

Check pipe lines

Condensation water frozen
in fuel tank, clogging
suction pipe

Thaw out tank and drain off
sediment ( water and fuel )

Faulty feed pump

Repair by authorized
workshop

Battery discharged

Charge or replace battery

Engine starts but tends to to
stop
stop

Clogged air holes in fuel
tank

Clean out holes

 Clogged Pre-filter

 Clean Filter. Check gasket

Clogged fine-filter

Repair by authorized
workshop

Clogged overflow valve on
fine-filter

Disassemble overflow valve
and check for proper sealing

 Faulty feed pump

 Repair by authorized
workshop

Water in fuel

Drain water and fuel from
sludge pocket of fuel tank

Sticking intake or exhaust
valves

Loosen valves

Broken valve spring

Replace broken spring

Poor engine output

Leaking pressure pipe

Check alignment at connections. Tighten thoroughly but not hard. Replace broken pipes.

Faulty injectors

Replace with spare, Repair
faulty injector at authorized workshop

 Incorrect Injection pump setting

 Check pump setting at authorized workshop.

Clogged air cleaner

Clean air cleaner

Faulty injector pump

Check pump at authorized
workshop

Unsuitable fuel

Drain tank and refill with
correct fuel

Incorrectly adjusted valves

Adjust valve-clearance
( warm engine )

Other engine faults
 

Have engine checked by
authorized workshop or
mechanic

Diesel knock

Faulty injector

Replace faulty injector with
spare.
Repair faulty injector at
authorized workshop

One or more of injectors faulty

 Replace with spare

Mechanical knock

Have authorized workshop
or mechanic check engine

Clogged air filter

Clean air filter

Smokey exhaust

Faulty injection pump

Check pump at authorized
workshop

Faulty Injector

Replace faulty injector

Clogged air cleaner

Clean air cleaner

Engine runs erratically

Air in injection pump

Bleed system

Clogged fine filter

Check filter at authorized
Workshop

Faulty injection pump

Check pump at authorized
workshop

Broken valve spring

Replace spring

Engine fails to reach top
r.p.m.

Faulty controls

Check controls

Clogged air cleaner

Clean air filter

Faulty centrifugal

Have authorized workshop
or mechanic check governor

Faulty spring at injector
pump

Replace spring

Engine races

Faulty injection pump

Have authorized workshop
or mechanic check pump

Faulty governor

Have authorized workshop
or mechanic check governor

Oil pressure gauge shows
insufficient pressure

Leakage in lubricating
system

Check lubricating system

Leaky reduction valve

Removal and clean valve

Mechanical fault

Have authorized workshop
or mechanic check engine

Faulty gauge

replace gauge