7.3 Engine problems
Fault description
Cause
Remedy
No or poor starting of engine
Fuel tank empty
Fill in fuel
No fuel at the injection pump,
supply not correct, fuel filter
clogged (can be notice if no fuel
runs out when the fuel supply
line is pulled off)
Check the fuel supply
Check the fuel supply line to the
engine
Check the fuel filter, replace if neces-
sary
Injection nozzle out of order
Have examined by a specialist
Engine does not start or starts
poorly (at low temperatures)
Paraffin separation in the fuel
Check the fuel, if necessary drain the
fuel tank and fill in winter fuel
Engine difficult to crank
Oil with too high viscosity
Drain off oil and fill in oil of correct vis-
cosity
Engine has no compression
Incorrect valve clearance
Have examined by a specialist
Engine defective
Have examined by a specialist
Engine looses power and speed Fuel tank empty
Fill in fuel
Throttle lever does not stay in
selected position
Tighten the nuts
Fuel filter clogged
Change the fuel filter
Tank ventilation blocked
Check the tank ventilation
Engine looses power and
speed, black exhaust smoke
Air filter clogged
Clean the air filter
Incorrect valve clearance
Have examined by a specialist
Injection nozzle defective
Have examined by a specialist
Too much oil in crankcase
Drain the oil down to the MAX-mark
on the dipstick
Fault
Possible cause
Remedy
Engine overheating
Lack of cooling air
Clean cooling air inlet and cooling
fins
Function of injection system not
correct
Have examined by a specialist
Too much oil in crankcase
Drain the oil down to the MAX-
mark on the dipstick
Engine stops
Fuel tank empty
Fill in fuel
Fuel filter clogged
Check the fuel filter, replace if
necessary
Tank ventilation blocked
Check the tank ventilation
Trouble shooting
BPR 25/40 D - BPR 25/50 D
80
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