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Page 65
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GENERAL DATA

04-2

Lubrication

Type

Wet aluminium die-cast sump, pressure fed

Oil filter

Disposable canister with full flow by-pass

Oil cooler

Integral with oil filter assembly, connected to vehicle cooling system

Oil pump:

 Type

Crankshaft driven, eccentric rotor

 Oil flow rate

30 litres / min. (6.625 gallons/min.)

 Outer rotor to body clearance

0.080 - 0.158 mm (0.0031 - 0.062 in.)

 Peak pressure

up to 20 bar (290 lbf.in

2

)

Oil pressure at idle:

 Cold - 1000 rev/min.

1.5 bar (21.8 lbf.in

2

)

 Operating temperature (minimum)

0.5 bar (7.3 lbf.in

2

)

 Regulated pressure

4.2  

±

0.5 bar (60.9 

±

 7.3 lbf.in

2

)

 Pressure at 3500 rev/min (hot)

3.0 - 4.5 bar (43.5 - 65.3 lbf.in

2

)

Relief valve opening pressure

4.2 bar (60.9 lbf.in

2

)

Low oil pressure switch opening pressure

0.2 - 0.5 bar (2.9 - 7.3 lbf.in

2

)

Cylinder block

Type

Grey cast iron with hollow beam structure

Cylinder head warp - maximum

0.03 mm (0.001 in.)

Cylinder head bore:

 Standard

84.000 - 84.018 mm (3.3071 - 3.3078 in)

⇒⇒

 Wear limit

84.040 mm (3.3087 in)

 Intermediate

84.080 - 84.098 mm (3.3102 - 3.3109 in)

⇒⇒

 Wear limit

84.120 mm (3.3118)

 1st.Oversize (Grinding dimension)

84.250 - 84.268 mm (3.3169 - 3.3176 in)

⇒⇒

 Wear limit

84.290 mm (3.3185 in)

Cylinder bore ovality (permitted roundness deviation) 

0.01 mm (0.0004 in)

 Wear limit

0.04 mm (0.0016 in)

Cylinder bore taper (permitted conicity) 

0.01 mm (0.0004 in)

 Wear limit

0.04 mm (0.0016 in)

Measurements at top centre and bottom of bore

Crankshaft

Main journal diameter

60 mm (2.36 in.)

Crankpin journal diameter

44.975 - 45.009 mm (1.7707 - 1.7720 in)

End float

0.08 - 0.163 mm (0.0031 - 0.0064 in.)

Maximum out of round 

0.15 mm (0.006 in.)

Crankshaft seal

PTFE

At centre main journal; crankshaft supported on outer bearing pins

GENERAL DATA > Engine - Td4 Diesel > Page 71

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