Main characteristics
Characteristic | Meaning |
The order of operation of the cylinders | 1—3—4—2 (No. 1 from the flywheel) |
Maximum engine speed: | |
F8Q 620 engine without turbocharger | 5200±100 rpm |
F8Q engine with turbocharger | 5000±100 rpm |
F9Q engine with turbocharger | 4800±100 rpm* |
*On F9Q engines, the maximum engine speed is controlled by the electronic module of the injection system and is not adjustable |
Idle speed
Characteristic | Meaning |
F8Q engines F9Q engines | 825±25 rpm 850±25 rpm* |
*On F9Q engines, idle speed is controlled by the electronic module of the injection system and is not adjustable |
Fast idle speed
Characteristic | Meaning |
F8Q 620 engine without turbocharger | 925±25 rpm |
F8Q engine with turbocharger and F9Q | not regulated (factory setting) * |
*On turbocharged F8Q and F9Q engines, fast idle speed is controlled by the electronic injection module and is not adjustable |
Deceleration revs
Characteristic | Meaning |
F8Q 620 engine without turbocharger (with 4 mm spacer) | 1150±25 rpm |
F8Q engines with turbocharger (with 4 mm spacer) | 1250±25 rpm |
On F9Q engines, the deceleration speed is controlled by the electronic injection module and is not adjustable |
Smoke
Characteristic | Meaning | Maximum |
F8Q 620 engine | 1.24 m—1 (40%) | 2 m—1 (55%) |
F8Q engine with turbocharger | 1.4 m—1 (44%) or 1.8/m (52%) | 3 m—1 (71%) |
F9Q engine | 1.24 m—1 (40%) | 2.5 m—1 (64%) |
Values shown are indicative only - see decal affixed to engine compartment for exact information. |
Bosch fuel pump
Characteristic | Meaning |
Engine F8Q 620 VE 4/8F 2300R 598, VE 4/8F 2300R 598-1*, VE 4/8F 2300R 598-2**, VE 4/8F 2300R 598-3***, VE 4/8F 2300R 598- 4 | |
*With air conditioning and fast idle vacuum | |
*With air conditioning and fast idle vacuum | |
***With Air Conditioning, Fast Idle Vacuum Actuator and Coded Fuel Cutoff Valve | |
F9Q 730 engines F9Q engines | VE 4/11 E2000R 672 734 VE 4/11 E2000R V1763 |
Direction of rotation | Clockwise as viewed from pulley side |
Static injection moment: | |
Engine position | Cylinder #1 at TDC (refer to section Removal and installation of components of system of the distributed injection) |
Pump position: | |
Models with F8Q 620 engine | 0.82±0.04mm |
Models with F9Q engine | 0.45±0.02mm |
Dynamic injection moment | No information |
Fuel pump
Characteristic | Meaning |
F8Q 784 and 786 DPCN engines | R8448B020A or R8448B021A* |
F8Q 788 DPCN engines | R8448B130A** |
*With coded fuel shut-off valve | |
**No information available for this engine type. Consult with a Renault representative. | |
Direction of rotation | Clockwise as viewed from pulley side |
Static injection moment
Characteristic | Meaning |
Engine position | Cylinder #1 at TDC (refer to section Removal and installation of components of system of the distributed injection) |
Pump position | The value is indicated on the pump (refer to section Removal and installation of components of system of the distributed injection) |
Dynamic injection moment | No information |
Nozzles
Characteristic | Meaning |
Type | Needle |
injection pressure: | |
F8Q engines | 130 + 8 bar - 5 bar (maximum tolerance 8 bar) |
F9Q engines | 200 bar + 12 bar - 0 bar (1st level) * |
*Not adjustable on F9Q engines (factory setting) |
Turbocharger
Characteristic | Meaning |
Type | Garett T2 |
boost pressure (ultimate load | 2500 - 3000 rpm 900 mbar + 50 - 100 mbar |
Tightening torques, Nm
Characteristic | Meaning |
Coded Fuel Cutoff Valve - Lucas Pump | 20 |
Cold start valve bolt (models with F9Q engine) | 10 |
Nuts for connecting the cooling pipe to the turbocharger | 20 — 30 |
Nuts for fastening the turbocharger to the front of the exhaust system: | |
Models with F8Q engine Models with F9Q engine | 45 26 |
Fast idle thermal actuator to cylinder head | 35 |
Fuel gauge blocking ring | 35 |
Fuel injectors to cylinder head (models with F8Q engine) | 70 |
Fuel injector clamp bolts to cylinder head (models with F9Q engine) | 27 |
Connecting nuts and bolts of fuel lines | 25 |
Bolt connection type "banjo" supply and return fuel hoses - Bosch pump | 25 |
Fuel pump cover bolts (F9Q engines) | 7 |
Fuel pump hydraulic head bolt (F9Q engines) | 12 |
Nuts and bolts of the left support of the fuel pump: | |
Bosch pump, F8Q 620 engine | 25 |
Lucas pump, other F8Q engines | 20 |
Bosch pump, F9Q motors | No data |
Bolts of the right support of the fuel pump: | |
Solid pulley - Bosch pump, F8Q 620 motors | 25 |
Lucas pump, other F8Q engines | 30 |
Bosch pump, F9Q motors | 22 |
Fastening nut of a pulley of the fuel pump: | |
Solid pulley - Bosch pump, F8Q 620 motors | 65 |
Pulley "IAA" - a regular nut with a separate washer | 65 |
Pulley "IAA" - non-ferrous metal nut with washer | 45 ± 5 |
Fuel pump pulley center bolt (left hand thread) with micrometer adjustment: | |
Stage 1 Stage 2 | 20 90 |
Injection timing adjustment hole plug: | |
Bosch pump, F8Q 620 engine | 25 |
Lucas pump, other F8Q engines | 6 |
Bosch pump, F9Q motors | No data |
Intake/exhaust manifold fixing nuts: | |
Models with F8Q engine Models with F9Q engine | 25 28 |
Intake/Exhaust Manifold Struts - F9Q Engines | 8 |
Nut connecting the oil supply pipe to the turbocharger: | |
Models with F8Q engine Models with F9Q engine | 15 — 25 20 |
Nut connecting the oil outlet pipe to the turbocharger: | |
Models with F8Q engine Models with F9Q engine | 40 9 |
Fuel cut-off valve - Bosch pump | 20 |
Nuts for fastening the turbocharger to the exhaust manifold: | |
Models with F8Q engine Models with F9Q engine | 45 26 |
Locknut of draft of a drive of a bypass damper | 6—8 |
Bolts of fastening of an arm of a bypass gate to a turbocharger* | 15 |
* Coat bolt threads with blocking compound |