CF MOTO CF125T-19 2003, Service Manual

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4-1
4 lubricating system
4
Overhaul info
… … … … … … … …
4-1 Failure diagnosis
… … … … … …
4-1
oil pump
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4-2
Overhaul info
Caution
l The maintenance of the oil pump shall be done after dismantling the right side cover. (
→
11)
l When the measured values exceed the service limit, replace the oil pump.
l Do not let any impurities into the inside of the engine while dismantling the oil pump.
l Check if there is any oil leakage after installing the oil pump.
Standard
Ite m S ta n d a r d S e rv ic e lim it
W h e n r e p la c in g 1 .1 L — O il c a p a c ity
F u ll C a p a c ity 1 .1 5 L
—
R e c o m m e n d e d o il
S A E 1 0 W -4 0 、 2 0 W -5 0 S p e c ia l fo r
4 -s tro k e m o to r c y c le
W h e n u s in g s u b s titu te s , s e le c t fro m
fo llo w in g r a n g e .
A P I: S E o r S F ty p e e n g in e o il
S A E : s e le c t fro m le ft ta b le a c c o rd in g
to e x te rn a l te m p e ra tu re .
C le a ra n c e o f in n e r
a n d o u te r r o to rs
0 .1 5 m m 0 .2 0 m m
B o d y c le a r a n c e 0 .1 5 -0 .2 3 m m 0 .2 5 m m
O il p u m p ro to r
Te r m in a l s u rfa c e
c le a ra n c e
0 .0 5 -0 .1 0 m m 0 .1 2 m m
Tightening torque
Mounting bolt, oil pump body 10N.m(1.0kgf.m)
Screw, plate oil pump cover
2N.m(0.2kgf.m)
Separate plate comp, B 10N.m(1.0kgf.m)
Separate plate A 10N.m(1.0kgf.m)
Failure diagnosis
Low oil level Smutted oil
Natural consuming of oil Oil is not replaced in time
Leakage wearing of piston ring
Wearing or incorrect installation of piston ring or
Oil mixed with coolant
Wearing of valve guide or valve stem Poor sealing of water seal comp
Wear of oil seal, valve stem Poor sealing of cylinder gasket
Wearing of cylinder, piston and piston ring