SAME SILVER 80 - Page 109

dark exhaust smoke
poor engine response
after a sudden
acceleration
engine won’t keep
constant r.p.m.
engine overheating
check air filter cartrid-
ge for blocking
out-of-calibration en-
gine governor
check air filter cartrid-
ge for clogging
make sure no air is
within the fuel system
insufficient compres-
sion in the cylinders
make sure neither air
nor water are in the
injection system
check belt tension
check cooling system
efficiency
inspect pumps for
proper timing
measure pressure in
the duct at compres-
sor exit
clean or replace
check injectors for
proper efficiency
adjust governor and
provide a new calibra-
tion
check for proper fuel
filter cleanliness
bleed the air in sy-
stem
check clearance be-
tween valves and roc-
kers
empty the tank and fill
with decanted diesel
fuel
check injectors for
correct calibration
operate the related
belt tightener
clean carefully
retime as necessary
check injectors for
correct calibration
clean the turbochar-
ger
restore calibration ac-
cording to specifica-
tions
clean or replace filters
restore correct clea-
rance
check valve efficiency
bleed air from system
restore specified cali-
bration
bleed the system
grind or replace val-
ves, cylinder head
gaskets and piston
rings
replace pistons and
cylinders
engine
diagnosing malfunctions
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109
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