Technical data

28
Continuation of Table 3
Trouble and its appearance Remedy
4.2 The engine emits white smoke
4.2.1 The engine is overcooled Warm up the engine. During the operation, keep
the coolant temperature within the range
75…95C
4.2.2 Water in fuel Change the fuel
4.2.3 The clearances between the valves and
the rocker arms are not adjusted
Adjust the clearances between the valves and the
rocker arms
4.2.4 The injection dwell angle is set improp-
erly
Set the ignition dwell angle as recommended
4.3 The engine emits blue smoke
4.3.1 Penetration of oil into the combustion
chamber due to wear and tear of the
parts of the sleeve and piston group
Replace the worn parts of the sleeve and piston
group
4.3.2 Excessive oil in the engine crankcase Drain excessive oil while checking the level ac-
cording to the upper mark of the dipstick
5 The engine overheats
5.1 The coolant in the radiator boils Clean the radiator from dust and dirt and the
cooling system from the scale. Adjust the fan
belt tension
6 The oil pressure in the warmed-up engine is lower than the allowable value
6.1 The pressure gauge is faulty Replace the pressure gauge (if necessary) after
checking the oil pressure by means of the refer-
ence pressure gauge
6.2 Leakage in joints of the oil pipelines Locate the leaking joint and restore the leak-
proofness
6.3 The oil pump is faulty Locate and eliminate the failure
6.4 The oil level in the engine crankcase is
lower than the allowable one
Add oil up to the upper mark of the dipstick
6.5 Jamming of the drain valve of the cen-
trifugal oil filter
Wash the valve and adjust the pressure in the lubr
i-
cating system in accordance with Fig. 18.
6.6 Extreme wear and tear of the junction
between the crankshaft pivots and bear-
ings
Regrind the crankshaft pivots and install the in-
serts of the repair-size bearings
7 Turbo-supercharger
7.1 The turbo-supercharger rotor does not
rotate (no distinctive high-pitch tone
sound is heard):
a) Presence of foreign objects preventing
the rotor from rotation
Remove the intake and exhaust pipes and re-
move the foreign objects
b) Seizure of the rotor in the bearings Replace the turbo-supercharger
7.2 Increased ejection of oil from the side
of the compressor or turbine, leakage in
the oil seals of the turbo-supercharger
Remove the turbo-supercharger from the diesel
engine and send it to the repairing workshop
8 Starter
8.1 When switching on the starter, the sole-
noid starter switch does not operate (no
distinctive clock is heard):
a) Insufficient tightening or oxidization of Clean the contacts and tighten the terminals