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Begin OCR Text:
P
KnoGking noisa trom v8lve m$Ghanism
Valve c l earances too l arge. _ Adj ust valve c l earances.
Worn o r d amaged parts i n valve m echan ism. _ Recond iti on or replace parts wh e re n ecessary .
Heavy regular knoGking sound, more obvious when engine is under lo8ding
Worn mai n o r big-end be ari ngs, worn piston and Locate sou nd by short-c i rc u iting th e spark ing pl ugs
gudgeon pi n s.
o ne afte r an oth e r.
The n d ism antl e as far as req u i red to e Kam i ne
beari ngs and pistons.
Low oil pressure
Low p ressu re at id l ing speed. Wh en the eng i ne h as bee n run hard and then
_
al l owed to ru n at the l owest idl i n g s Peed , th e
o i l p ressu re is no rmal Iy qu ite l ow.
' O i l fi lte r b l ocked . |
