Nissan Primera

1990-1992 of release

Repair and car operation



Nissan Primera
+ Nissan Primera brand Cars
+ Current leaving and service
+ Engine
+ cooling and heating Systems
- Power supply system and production of the fulfilled gases
   - Power supply system of carburetor engines
      Fuel pump
      Fuel filter
      Carburetor
      Air filter
      Systems of decrease in toxicity of the fulfilled gases
   + Power supply system of injector engines
   + System of production of the fulfilled gases
+ System of electric equipment of the engine
+ Manual transmission, differential and main transfer
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Appendices


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Fuel pump

The ordinary, mechanical fuel pump is established.

Removal and pump installation

 PERFORMANCE ORDER

  1. Disconnect from the pump топливопроводы. In order to avoid mistakes at connection it is necessary to be guided by an illustration.

Type of the fuel pump with an arrangement of the connected hoses

1 — a hose to the carburetor
2 — a hose of return of fuel
3 — from the fuel filter
  1. Unscrew the pump.
  2. Remove the pump with both laying and an intermediate flange from the engine. Thus incline the pump a little to take out the lever.
  3. Installation of the fuel pump is carried out in return sequence. Laying should be replaced, if they have an unsatisfactory appearance.

Check of the fuel pump

Low pressure of giving or low productivity can lead to insufficient supply of fuel. The pump can be checked in the established condition when the engine has working temperature and idles.

 PERFORMANCE ORDER

  1. Before pump check at first check, that pipelines were free and the filter was not littered.
  2. Connect a manometer by means of a suitable splitter between the pump and the carburetor, as is shown in an illustration below. Disconnect from the pump a returnable fuel hose to a tank, stop up a pump branch pipe. For example, it is possible to insert a bolt of suitable diameter into the hose end.

Elements for check of pressure of giving of the fuel pump

1 — to the carburetor
2 — a final hose
3 — the bolt inserted for consolidation
4 — an inlet hose
5 — from the fuel filter
6 — a manometer
  1. Let's to the engine work with various number of turns and take readings of a manometer. Pressure should lie within 0.20 - 0.34 bar.
  2. If value does not correspond demanded, remove the pump and check it.

Repair of the fuel pump

The fuel pump — is a worn-out detail and is not subject to dismantling, as the top cover напрессована on the lower part of the pump at its manufacturing. If values at check do not correspond demanded, it is necessary to establish the new pump. It is possible to subject the pump to short check, having stopped up inlet and final hoses and press the pump lever. It is possible to determine by noise of absorption of the pump, whether creates the pump pressure of absorption and forcing. However check does not allow to tell, whether the pump under pressure faultlessly works.