E30 series BMW 3

since 1983-1994 of release

Repair and car operation



E30 BMW
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engine
+ 4. Cooling system
+ 5. Heating and ventilation
- 6. Fuel system
   6.2. Specifications
   6.3. Check of system of injection
   6.4. Measuring instrument of a stream of air
   6.5. Throttle branch pipe
   6.6. Regulator of pressure of fuel
   6.7. Nozzle of start-up of the cold engine and thermotimer
   6.8. Check and replacement of nozzles
   6.9. Air proof-reader of idling
   6.10. Order of a decompression of fuel system
   6.11. Check of pressure of fuel
   6.12. The fuel pump, the pump of pumping and the fuel level sensor in a tank
   6.13. Gasoline pipe lines and union
   6.14. Fuel tank
   6.15. Air filter
   6.16. Cable of a drive of a butterfly valve
   6.17. Carburetor
+ 7. Exhaust system
+ 8. Transmissions
+ 9. Coupling
+ 10. Brake system
+ 11. Running gear
+ 12. Body
+ 13. Electric equipment
+ 14. Good advice



6.7. Nozzle of start-up of the cold engine and thermotimer

GENERAL INFORMATION

Nozzle of start-up of the cold engine (And) and a thermotimer (In)

Nozzle of start-up of the cold engine (Motronic system)

Check

PERFORMANCE ORDER
1. Check is carried out at engine temperature not above 30 ° by S.Otsoyedinite from a nozzle the socket and take aside.
2. Unscrew 2 screws and get a nozzle, without disconnecting a gasoline pipe line. Exclude ignition operation, having disconnected and having earthed a high-voltage wire of the coil. Start the fuel pump on 1 mines, перемкнув its conclusions to the relay. During this time leakages of fuel from a nozzle it should not be observed. Otherwise a nozzle replace. Switch off ignition and clean a crossing point.
L-Jetronic system
3. Attach the socket to a nozzle and substitute under it a vessel. Ask the assistant to include ignition and a starter. The stream of a conic form should be observed. If a stream faltering, clean a nozzle or replace.
4. If the stream is absent, check tension on the socket at starter inclusion. If tension is not present, replace the thermorelay.

Thermotimer (relay of a starting nozzle)

The thermotimer operates a nozzle of start-up of the cold engine, providing opening of a starting nozzle for a certain time which depends on engine temperature. The relay is mounted near the sensor of temperature of liquid. Check is carried out at engine temperature not above 30 ° by Page.

PERFORMANCE ORDER
1. Exclude ignition operation, having disconnected and having earthed a high-voltage wire of the coil. Remove from the relay a cover and connect the voltmeter to black yellow wire of the socket.
2. For this purpose ask the assistant to include ignition and a starter. Tension should appear at the moment of inclusion of a starter and later 6–10 seconds, depending on engine temperature, disappear.
3. If tension is, open the socket check short circuit of contacts of the relay.
4. Attach a wire of the coil and warm up the engine to temperature not below 41 ° S.Kontakty the relay should be opened. Otherwise the relay replace.

Replacement

PERFORMANCE ORDER
Starting nozzle
1. Execute a decompression.
2. Disconnect from a nozzle the socket.
3. Unscrew the union and disconnect a gasoline pipe line (or disconnect a hose).
4. Unscrew 2 screws and get a nozzle.
5. Installation is carried out upside-down.
Thermorelay
6. On the cooled-down engine unscrew a stopper of a mouth of a tank.
7. Disconnect from the relay the socket.
8. A face key turn out the relay and immediately to prevent liquid loss, wrap the new relay.