DAF CF65, CF75, CF85 Series . Manual - part 402

©

 200416

1-5

Engine, general

TECHNICAL DATA

ΧΦ65/75/85 series

4

0

1.4 XE ENGINE, GENERAL

Engine types

General specifications

Engine speeds, XE engine

Coding

XE 250 C 1
XE 280 C 1
XE 280 C 3 (4 öko)
XE 315 C 1
XE 315 C 3 (4 öko)
XE 355 C 1

Environmental standard

Euro 3 (C)

Number of cylinders

6 cylinders in line

Valves

4 valves per cylinder

Bore x stroke

130 x 158 mm

Cubic capacity

12.6 litres

Compression ratio

17,4 : 1

Fuel injection

direct injection

Injection sequence

1-5-3-6-2-4

Air inlet system

Turbocharger intercooling

Engine management system

UPEC

Cooling

fluid

Weight

approx. 1,080 kg

Engine type

Idling rpm

Maximum free-running rpm

XE 250 C1

525 - 575

approx. 2200

XE 280 C1/C3

525 - 575

approx. 2200

XE 315 C1/C3

525 - 575

approx. 2200

XE 355 C1

525 - 575

approx. 2260

TECHNICAL DATA

1-6

©

 200416

Engine, general

0

ΧΦ65/75/85 series

4

©

 200416

2-1

CE engine fuel system

TECHNICAL DATA

ΧΦ65/75/85 series

4

0

2. CE ENGINE FUEL SYSTEM

2.1 GENERAL

Fuel level element

Fuel fine filter

Fuel lift pump

High-pressure pump

Fuel rail

Fuel rail pressure-limiting valve

Injector

Angular displacement

86



Resistance value
- Full

approx. 500 



- 

•

approx. 355 



- 

∂ approx. 

234 



- 



approx. 137 



- Not used

approx. 33 



Vacuum relief valve opening pressure

10 - 20 mbar

Pressure relief valve opening pressure

200 - 300 mbar

Maximum pressure drop across fuel fine filter

2.0 bar

Fuel lift pump pressure in front of fine filter (with 
engine at idling speed)

5 - 13 bar

Fuel lift pump pressure behind fine filter (with 
engine at idling speed)

3 - 11 bar

Pressure relief valve opening pressure

11 bar

Maximum underpressure on suction side of fuel 
lift pump

0.5 bar

Pump pressure (dependent on the operating 
mode of the engine and the electronic calibration)

300 - 1400 bar

Fuel rail pressure (dependent on the operating 
mode of the engine and the electronic calibration)

300 - 1400 bar

Opening pressure

1650 bar

Number of holes in injector

8

Resistance of magnet coil

0.15 - 0.5 



TECHNICAL DATA

2-2

©

 200416

CE engine fuel system

0

ΧΦ65/75/85 series

4

Injector washer

Fuel return overflow valve

Fuel return pipe

Return fuel measurement

i400693

A

Nozzle length 
(distance A)

Washer thickness

21.5 

≥ 0.2 mm

1.5 mm

23.0 

≥ 0.2 mm

3.0 mm

Fuel return overflow valve opening pressure

1.2 - 2.0 bar

Maximum return pipe pressure build-up

0.2 bar

Maximum quantity of return fuel at idling speed

180 ml/min.

Permitted minimum time for filling a measuring 
beaker to a volume of 360 ml

2 min.