Engine Running Away (Overspeed Suddenly) - Weifang 495 Operation And Maintenance Manual

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( 3 )
Oil
preSSUf'e gauge:is out of
order or an oil pipe breaks.
2). There is no oil pressure in a
new engine or unsteadiness of
the oil pressure of ·a'· engine
whose sump strainer is just
washed.
Oil suction pipe leaks·.
3). Oil pressure cann't be lifted
up by the adjustment.
( 1 )
Oil
fillter
element
IS
clogged.
( 2 ) Pressure regulating valve
spring of oil filter breaks or
pressure regulating valve leaks.
( 3 ) Crank shaft or camshaft
bearing
clearances
are
too
large.
(4 )
Lubricating oil pump rotor
is worn out or its
end play
is too
large.
(3)Inspect and replace.
Tighten the bolts;or r-eplace the
:gasket.-,
(1
)Replace the filter element.
( 2 ) Inspect and replace the
spring or lap the valve.
(3)R~place
the bearings.
( 4 ) Replace the rotor assembly
or adjust the end play.
8. Engine running away (overs peed Suddenly)
Abnormality
&.
Cause
Rem~dy
105

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