Change to ECE Models Automatic Year -...

Change to ECE Models Automatic YearChange to USA Models VersionChange to Lightweight Models Model

Specifications - Fuel system UnitFuelCarburettor

Type - 2 Zenith stage 35 / 40 INAT former version- 2 Zenith stage 32 / 40 INAT later version- 2 Zenith stage 35 / 40 INAT

VenturiMixture outlet boreMain jet - former version

- later version

Air correction jet - 1st stage- 2nd stage

Mixture tube - 1st stage- 2nd stage former version at 35/40 INAT- 2nd stage later version

Idle jet in idle cut-off valve- former version

- former version at 35/40 INAT- later version

Idle air jetAuxiliary fuel jetAuxiliary fuel air jetAuxiliary mixture jet

- 50 - -

80 -40 45 -

120 -40 -

47,5 45 47,5 -50 or 45 - - -

11 N 4 N -

4 S 6 S -4 N - -

80 -120 100 120 -

1st stage: x 115 1st stage: x 117,5 -2nd stage: x 130 2nd satge: x 145 -

1st stage: x 117,5 - -2nd stage: x 130 - -

1st stage 24 2nd stage 30 -3,1 -

X - -- X -

X - -

Min. ROZ 97,5

74 - 75 68 - 71 71 - 75 72 - 75

2.5 CS 2800 CS 3.0 CS 3.0 CSiECE Models with Mechanical transmission


Specifications - Fuel system Unit

74 - 75 68 - 71 71 - 75 72 - 75


Carburettor (Continuation)Float needle valve with ballFloat needle valve seal mmFloat weight gInjection tubeInjection rate with throttle closed cm³/strokeReturn bore in pump mmChoke gap at 400 mm/HG mmThrottle valve liftThrottle gap - 2nd stageVacuum box control bore

- 1st stage- 2nd stage

Reduction jet in vacuum box

- 2nd stageTemperature switch for automatic chokeIdle speed 1/minCO value at idle - former version Vol.%

- later version Vol.%Mech. fuel pump

MakeVersionFuel pump pressure at 4000 rpm barMin delivery rate via float needle l/h

Pump plunger lengthInsulating flange with gasket mm

107,2 ± 0,1 -20 -

0,21 ÷ 0,25 -60 l fuel or Esso Varsol 145/ 200at camshaft speed 2000 1/ min -

Pierburg APG PE 20 138 -damped suction chamber -

3÷4 bzw.4,5÷5,5 - -1,5 ÷ 2,0 3,0 ÷ 4,0 -

see Group 61 -850 ÷ 950 -

0,8 -

65,0 -

130 ± 10 -

0,8 -

2,8 ± 0,1 3,0 ± 0,1 -5° 30´ -

0,6 ÷ 0,9 -0,3 -

8,5 -0,5 -

2,0 -1,0 -



74 - 75 68 - 71 71 - 75 72 - 75


Electronic fuel injectionD-Jetronic with pressure sensor

Electric fuel pumpModel "Bosch"Type: rotary roller pump with permanent magnetic electric motorOperating pressure barDelivery rate l/hNominal voltage VOperating voltage VMax. current AOutput W

Injection valveBosch NoNominal static flow rate with test fluid cm³ / minTemperature range °C

Pressure sensorBosch NoTemperature range °C

Temperature time switchNominal voltage VOperating voltage VContact load, max. W

x-

- 8 ÷ 14- 40

- - 30 ÷ 95

- 12

- - 30 ÷ 110

- 0 280 100 030

- 0 280 150 043- 380

- 4,7- 56

- 12- 7 ÷ 15

- 2,0- 110

- A 580 112 339

- X



74 - 75 68 - 71 71 - 75 72 - 75


Intake air temperature sensor IResistance at +20°C ΩTest values (tol. ± 10 %)

at - 10 ° C Ω 0 ° C Ω+10 ° C Ω+20 ° C Ω+30 ° C Ω+40 ° C Ω+50 ° C Ω+60 ° C Ω

Coolant temperature sensor IIResistance at +20°C ΚΩ

at - 10 ° C ΚΩ 0 ° C ΚΩ+10 ° C ΚΩ+20 ° C ΚΩ+30 ° C ΚΩ+40 ° C ΚΩ+50 ° C Ω+60 ° C Ω+70 ° C Ω+80 ° C Ω+90 ° C Ω+100 ° C Ω

- 243- 190

- 450- 335

- 820- 600

- 1,7- 1,18

- 3,8- 2,45

- 9,3- 6

- 82

- 2,2 ÷ 2,7

- 155- 118

- 310- 220

- 660- 440

- 270 ÷ 350

- 980

Change to ECE Models YearChange to USA Models VersionChange to Lightweight Models Model


Type - 2 Zenith stage 35 / 40 INAT former version- 2 Zenith stage 32 / 40 INAT later version- 2 Zenith stage 35 / 40 INAT

VenturiMixture outlet boreMain jet - former version

- later version

Air correction jet - 1st stage- 2nd stage

Mixture tube - 1st stage- 2nd stage former version at 35/40 INAT- 2nd stage later version

Idle jet in idle cut-off valve- former version

- later versionIdle air jetAuxiliary fuel jetAuxiliary fuel air jetAuxiliary mixture jet

80 -40 45 -

120 -40 -

47,5 45 47,5 -

11 N 4 N -

4 S 6 S -4 N - -

80 -120 100 120 -

1st stage: x 115 1st stage: x 117,5 -2nd stage: x 130 2nd satge: x 145 -

- 2nd stage: x 130 - -- 1st stage: x 117,5 - -

1st stage 24 2nd stage 30 -3,1 -

X - -- X -

Min. ROZ 97,5 -

X - -

74 - 75 68 - 71 71 - 75 72 - 75ECE Models with Automatic transmission

2.5 CS A 2800 CS A 3.0 CS A 3.0 CSi A

- 50 - -




2.5 CS A 2800 CS A 3.0 CS A 3.0 CSi A

Carburettor (Continuation)Float needle valve with ballFloat needle valve seal mmFloat weight gInjection tubeInjection rate with throttle closed cm³/strokeReturn bore in pump mmChoke gap at 400 mm/HG mmThrottle valve liftThrottle gap - 2nd stageVacuum box control bore



- 2nd stageTemperature switch for automatic chokeIdle speed 1/minCO value at idle - former version Vol.%

- later version Vol.%Mech. fuel pump

MakeVersionFuel pump pressure at 4000 rpm barMin delivery rate via float needle l/h

Pump plunger lengthInsulating flange with gasket mm 20 -

60 l fuel or Esso Varsol 145/ 200at camshaft speed 2000 1/ min -

107,2 ± 0,1 -

damped suction chamber -0,21 ÷ 0,25 -

1,5 ÷ 2,0 3,0 ÷ 4,0 -

Pierburg APG PE 20 138 -

850 ÷ 950 -- 4,5 ÷ 5,5 - -

130 ± 10 -

2,8 ± 0,1 3,0 ± 0,1 -5° 30´ -

0,6 ÷ 0,9 -0,3 -

8,5 -0,5 -

2,0 -1,0 -

0,8 -0,8 -

65,0 -see Group 61 -




2.5 CS A 2800 CS A 3.0 CS A 3.0 CSi A


Electric fuel pumpModel "Bosch"Type: rotary roller pump with permanent magnetic electric motorOperating pressure barDelivery rate l/hNominal voltage VOperating voltage VMax. current AOutput W



Temperature time switchNominal voltage VOperating voltage VContact load, max. W - 40

- 12- 8 ÷ 14

- 0 280 100 030- - 30 ÷ 95

- 380- - 30 ÷ 110

- 56

- 0 280 150 043

- 7 ÷ 15- 4,7

- 110- 12

- X- 2,0

- A 580 112 339

- x




2.5 CS A 2800 CS A 3.0 CS A 3.0 CSi A




at - 10 ° C ΚΩ 0 ° C ΚΩ+10 ° C ΚΩ+20 ° C ΚΩ+30 ° C ΚΩ+40 ° C ΚΩ+50 ° C Ω+60 ° C Ω+70 ° C Ω+80 ° C Ω+90 ° C Ω+100 ° C Ω - 190

- 335- 243

- 600- 450

- 1,18- 820

- 2,45- 1,7

- 6- 3,8

- 2,2 ÷ 2,7- 9,3

- 118- 82

- 220- 155

- 440- 310

- 980- 660

- 270 ÷ 350

Change to ECE Models YearChange to ECE Models Automatic VersionChange to Lightweight Models Model

Specifications - Fuel system UnitCarburettor

TypeMain jet - 1st stage

- 2nd stageAir corrector jet - 1st stage

- 1st stage with manual gearbox- 2nd stage

Venturi - 1st stage- 2nd stage

Idling jetIdling air holeFuel jet for thermal starter valueMixture tube - 1st stage

- 1st stage with manual gearbox- 2nd stage

Regulation hole - 1st stage- 2nd stage

Initial atomizer outlet 1st and 2nd stageFloat needle valve sealing ringInjection tubePump plunger with bore mmInjection volume per stroke ccmFloat needle valveFloat weight g2nd stage throttle butterfly opening mmIntermediate jet in throttle butterfly section for 2nd stagethermal starter valve mmAuxiliary air thermal starter valveStarter butterfly opening mmAutomatic choke carburettor heater filament V/A

1305 ± 0,1 3 ± 0,1

14,6/ 0,45

28,5

130 ± 10

0,7

10,50,3

0,6 ÷ 0,9

4 N0,80,83,1

6 S 10 S- 6 S 1,6 mm

42,5 47,51,560

100 1202430

80 100- 80

X 115 X 117,5X 140 X 145

Two 35 7 40 INAT two-stage carburettors (Zenith) with exhaust emission control

71 - 7469 -71US Models

2800 CS 2800 CS A 3.0 CS 3.0 CS A

Change to ECE Models YearChange to ECE Models Automatic VersionChange to Lightweight Models Model


71 - 7469 -71US Models

2800 CS 2800 CS A 3.0 CS 3.0 CS A

Carburettor (Continuation)Thermal starter valve ΩIdle switch-off valve A/VIncrease revs for testing:with vacuum hose pulled off dashpot 1/min

Mech. fuel pumpMakeVersionFuel pump pressure at 4000 rpm barMin delivery rate via float needle l/h

Pump plunger lengthInsulating flange with gasket mm

at camshaft speed 2000 1/ min107,2 ± 0,1

20

Pierburg APG PE 20 138damped suction chamber

0,21 ÷ 0,2560 l fuel or Esso Varsol 145/ 200

20 13 + 20,13/12

approx 1800

Change to ECE Models YearChange to ECE Models Automatic VersionChange to USA Models Model


Type - 2 Zenith stage 35 / 40 INATVenturiMixture outlet boreMain jet - 1st stage

- 2nd stageAir correction jet - 1st stage

- 2nd stageMixture tube - 1st stage

- 2nd stage later versionIdle jet in idle cut-off valveIdle air jetAuxiliary fuel jetAuxiliary fuel air jetAuxiliary mixture jet

80 -45 -

120 -40 -

4 N -47,5 -

120 -6 S -

-X 145 -

80 -

Min. ROZ 97,5

X -1st stage 24 2nd stage 30 -

3,1 - X 117,5

3153 ccm2986 ccm

73 - 75

CS-L CSi-LCSi-LLightweightmodels

3003 ccm

72 - 7372 - 73


3153 ccm2986 ccm

73 - 75


3003 ccm

72 - 7372 - 73

Carburettor (Continuation)Float needle valve with ballFloat needle valve seal mmFloat weight gInjection tubeInjection rate with throttle closed cm³/HubReturn bore in pump mmChoke gap at 400 mm/HG mmThrottle valve liftThrottle gap - 2nd stageVacuum box control bore



- 2nd stageTemperature switch for automatic chokeIdle speed 1/minCO value at idle Vol.%

Mech. fuel pumpMakeVersionFuel pump pressure at 4000 rpm barMin delivery rate via float needle l/h

Pump plunger lengthInsulating flange with gasket mm 20 -

at camshaft speed 2000 1/ min -107,2 ± 0,1 -

0,21 ÷ 0,25 -60 l fuel or Esso Varsol 145/ 200

Pierburg APG PE 20 138 -damped suction chamber -

850 ÷ 950 -3,0 ÷ 4,0 -

65,0 -see Group 61 -

0,8 -0,8 -

130 ± 10 -

3,0 ± 0,1 -5° 30´ -

0,6 ÷ 0,9 -0,3 -

8,5 -0,5 -

2,0 -1,0 -


3153 ccm2986 ccm

73 - 75


3003 ccm

72 - 7372 - 73


Electric fuel pumpModel "Bosch"Type: rotary roller pump with permanent magnetic electric motorOperating pressureDelivery rateNominal voltageOperating voltageMax. currentOutput



Temperature time switchNominal voltage VOperating voltage VContact load, max. W - 40

- 12- 8 ÷ 14

- 0 280 100 030- - 30 ÷ 95

- 380- - 30 ÷ 110

- 56

- 0 280 150 043

- 7 ÷ 15- 4,7

- 110- 12

- X- 2,0

- A 580 112 339

x x


3153 ccm2986 ccm

73 - 75


3003 ccm

72 - 7372 - 73




at - 10 ° C ΚΩ 0 ° C ΚΩ+10 ° C ΚΩ+20 ° C ΚΩ+30 ° C ΚΩ+40 ° C ΚΩ+50 ° C Ω+60 ° C Ω+70 ° C Ω+80 ° C Ω+90 ° C Ω+100 ° C Ω - 190

- 335- 243

- 600- 450

- 1,18- 820

- 2,45- 1,7

- 6- 3,8

- 2,2 ÷ 2,7- 9,3

- 118- 82

- 220- 155

- 440- 310

- 980- 660

- 270 ÷ 350

Change to ECE Models Automatic Year -...

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