Weifang 495 - Unusual Pounding Noise; White Smoke; Grey Blue Smoke

(,4) Air<cleaner is choked ..
(4)Cleanor._~eplacethe ·filter el-
e·ment.
2). White smoke
( 1) Insufficient compression
pressure.
(2)Tem.pe.rature.,of cooling, wa-
,ter is,' too~ low ..
(3)Injection timing js too late.
(·4)Water'·trapped in fuel.
(1) Remedy it acco,rding to the
procedure specified jn~t~e ~sec.
. ,tion .. ,of· "Insufficient compres-
sion pressure In c~linders.~'
. above.,
(2) Increase the cooling .water
temperature.- . :)~'<~': .~.,'
(3)Adjust the injection. timing.
(4) Inspect: the' fuel' quality' and
renew it if necessary.
out the excessive oil.
positso>rreplace the rings.
( 2 ) Clean off the carbon de-
(1 )Check the oil level and drain
3).:~Grey! blue smoke
(1) Oil level in oil sump IS too
high.
(2) The piston rings are stuck
by carbon deposits ,or:are worn
out.
e3) The clearance between PlS- (3) Replace the cylinder·liner.
ton and cylinder liner is too
large.
. 5. Unusual 'pounding .. noise
Abonrmality& Cause
Remed·y
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