Fuel tank
The fuel tank, made of sheet steel, is installed under the boot floor. Capacity: 60 dm3.
Fuel pump
The rotary fuel injection pump is equipped with a hydraulic cold start booster with thermostatically controlled automatic high idle support and an engine shutdown solenoid valve (STOP valve), shutting off the fuel supply.
| Brand and type: | |
| – until December 1986 (Sierra '83) | Roto Diesel DPA R 344 3450 |
| – since January 1987 (Sierra '87) | Lucas Roto Diesel DPC8443A 1730 |
| injection order (cylinder #1 flywheel side) | 1–3–4–2 |
| Start of injection | The position of the piston of the 1st cylinder of the engine is 2.3 mm before TDC or 17°before TDC. |
| Idle speed | 825±50 rpm |
| Fast idle speed (cold engine) | 880 - 930 rpm. |
| Max RPM (without load) | 4800 - 4850 rpm. |
Nozzles
| The injectors are screwed into the cylinder head | |
| nozzle body | Roto Diesel or Bosch KCA 30 S44 |
| Sprayers: | |
| – until December 1986 (Sierra '83) | CAV Roto Diesel or Bosch DN 0 SD 1510 |
| – since January 1987 (Sierra '87) | CAV Roto Diesel RDN 0 SDC 6577 or Bosch DN 0 SD 230 |
| Nozzle opening pressure: | |
| – until December 1986 (Sierra '83) | 10.8 - 12MPa |
| – since January 1987 (Sierra'87) | 11.5±0.5 MPa |
Fuel filter
The fuel filter contains a replaceable element, a sump and a manual fuel pump.
Brand and type: CAV 796.
Glow plugs
| Brand and type: | |
| – until December 1986 (Sierra '83) | Bosch 0250 202 019, Bern 603 MJ, Lucas CAV CS 003 or Champion CH 68 |
| – since January 1987 (Sierra '87) | Bosch 0250 201 019 or Beru 0100 221 118 |
| Control temperature of heating candles (within 7 seconds at an ambient temperature of 20°C) | 850°C |
Air filter
The dry air filter has a replaceable element.
Make and type: Ford EFA 282.
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