Isuzu 4JB1 User Manual

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

Isuzu 4JB1 Specifications

General

Displacement	2.8 L (2771 cc)
Bore x Stroke	93 mm x 102 mm
Compression Ratio	18.4:1
Fuel System	Indirect Injection
Aspiration	Naturally Aspirated
Cooling System	Water-cooled
Engine Type	Inline 4-cylinder diesel
Max Power	85 hp (63 kW) at 3600 rpm
Valve Train	OHV