BMW 3 series E30

Since 1983-1994 of release

Repair and car operation

3.3.6.6. The shaper of impulses and the block of electronic ignition

THE GENERAL DATA

Devices of system of ignition TCI

1. A high-voltage wire of the coil 2. The ignition coil 3. A high-voltage wire of a candle 4. A candle 5. The block of electronic ignition Bosch 6. The block of electronic ignition Siemens/Telefunken 7. Conducting 8. The distributor case 9. A vacuum regulator 10. A lock ring

11. The shaper of impulses 12. A plate of a rotor of the induction gauge 13. A lock ring 14. A cover 15. Бегунок 16. The distributor 17. A pin 18. Knot of the induction gauge and the shaper of impulses 19. Скоба 20. A socket

On considered cars blocks of electronic ignition of 2 types which outwardly differ by quantity of sockets are established. At the block of firm Bosch 1 socket, at firm Siemens/Telefunken block – 2 sockets. The shaper of impulses is mounted in the ignition distributor.

Screws of fastening of the block of ignition Siemens

Block Bosch has similar fastening.

Extraction of a plate of a rotor of the shaper


Screws of fastening of a winding of the gauge of the shaper to the bottom plate


Check

PERFORMANCE ORDER

The block of electronic ignition 1. Check up presence of pressure of the battery at the included ignition between conclusions 2 and 4 disconnected sockets (Bosch) or 3 and 6 (Siemens/Telefunken). 2. Check up chain presence between a conclusion 2 and weight (Bosch) or 6 and weight (Siemens/Telefunken), and also between conclusions of a socket 4 (Bosch) or 3 (Siemens/Telefunken) and a conclusion 15 on the ignition coil. If results of check unsatisfactory check up conducting. The shaper of impulses 3. Connect the digital voltmeter to conclusions of a socket 5 and 6 (Bosch) or between conclusions of a small socket, observing polarity of the voltmeter (on block Siemens/Telefunken) and be convinced that at rotation of the engine by a starter on these conclusions there is an alternating voltage 1–2 Century Otherwise check up conducting. 4. Check up resistance of the shaper between conclusions 5 and 6 (Bosch) or between conclusions of a small socket (Siemens/Telefunken) which should be 1–1,2 clod. 5. If resistance differs, the shaper replace. If resistance corresponds to norm, and pressure of a food and a signal differ, replace the ignition block.

Replacement

PERFORMANCE ORDER

The block of electronic ignition 1. Disconnect a socket from the block of electronic ignition, turn away screws of fastening of the block and get the block from a motor compartment. 2. Installation is carried out upside-down. If block Bosch paste it to a heat-conducting path dielectric structure Curil R2 (N under the catalogue 81 22 9 43) varies or silicone mastic, preliminary having cleared the rests of old glue a skin of a class 180. The shaper of impulses 3. Disconnect the battery from weight. Remove the ignition distributor. 4. Remove a lock ring, cautiously, without supposing deformation, hook and get a shaper rotor. 5. Turn away screws and disconnect a vacuum regulator. 6. Remove a lock ring and cautiously remove the shaper with a plate. 7. Turn away screws and remove the shaper from a plate. 8. Installation is carried out upside-down. Lay between a winding of the gauge of the shaper and a plate изоляционное a ring, centre it before tightening screws. Adjust a backlash in the gauge (subsection 3.3.6.8 see).