Isuzu 4JB1T - Excessive Rotating Part Wear

00 – 28 SERVICE INF
ORMATION
5) EXCESSIVE ROTATING PART WEAR
Checkpoi
nt Trouble Cause Countermeasure
Engine oil Contam
inated
Change
W
rong grade or type
Change
T
urbocharger oil feed pipe
R
estricted
Clean or
replace
T
urbocharger oil seal
Def
ective
Replac
e
Center
housing oil
drain passage
R
estricted
Clean or
replace
T
urbine shaft
O
il sludge and coking
Replac
e
Engine lubr
ication system
Inadequate oil s
upply
Co
rrect
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
NG
NG