Weifang 495 - Unsteady Running of the Engine

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(~?The",tQP

lEfJler

of

i

tJ:le "gover-

,(?)

Pu~h)t,

forward

to.

its

end

..

l1;o~

f~ils

to

return.

position.

:

')

(~)

Fuel

..

p~ss8:ge

is

bl,?~ke4

(4)

Control

:rod,

o~.

the

inj~ction

pump

i~

stuck.'

(S)The

feed

pump

fails

to,sup-

ply

fuel~

( 3 )

Inspect

the

fuel

passage

from

fuel

tank

to

the

injection

pump

(The

screen

inside

the

:.

\>anjo"l

:,

co.nn~.ctiqn,

bol

t,:·

of

~.

the

feed

pump

should

h,e

ch~cked

first).

Eliminated

it.

(4

).

~sQlantle

the

,insp.ection

window

coyer,

to

inspect

the

control

r:od.:

..

If.

it

is

stuc~"

s:e.nd

the

injection

pump

to

a

service

workshop.

£or.rem~dy.

(5

)Check

whether

the

pisto~is

stuck

and

inspect

whether

the

valve

and

the

spring

are

in

good

·conditions.

2.

Unst~adyRunning

of

The

Engine

Abnorm~lity

&.

Caus~

1).

En;gip~

ru.~nin~~

intermit-

tently.

(1

)

Poor

qualitty

of

the

fuel

or

the

fuel

contains

water.

~.(2)Air

t!appeq

in

fuel

system.

98

Reme.dy

(.

1)

Ch~ck,

the

fuel

quality

and

.

renew

it if

·~e·~~ssary

....

(2)Vent

the

air

..

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