Alfa Romeo 33 owners manual page 114

text version of content this owner's manual page from owners manual to the vehicle Alfa Romeo 33, year of production 1983 - 1995:

IGNITION, STARTING, CHARGING SYSTEM arm and cap, The pulses are gener- DESCRIPTION ing heat maximum elimination and ated by a magnetic pulse generator stable performances. The electronic ignition is an induc- Besides conducting or interdicting located into a variable air gap circuit. tive discharge transistorized system the output transistor, the electronic During rotation of distributor shaft, without contacts, constituted by the each time a tooth of the timer passesmodule has also the purpose of following components. in front of the fixed pole piecprocessing the signal provided by the e a. ignition distributor with mag a signal is generated (by expansion, magnetic pulse generator of distribu- netic pulse generator A5 with 0 induction) at the winding ends oftor, conducting one linked with the mechanic centrifugalspark coil (pulse generator), with conse-engine rotation revolution numbers. advance and vacuum advance of the electronic quent control It is thus obtained a control of the calibrator. module. coil charge current and of time b. Ignition coil A8 with electronic The electronic module, constituted 0 duration of conduction with genera- module. by a set of integrated circuits tion of constant energy spark, C. Electronic moduleNl mounted onto a ceramic supportindependently of engine speed and 0 The ignition distributor with mag- battery voltage. enclosed into a proof container is, in A coupling capacitor, secured to netic pulse generator differs from theits turn, mounted together with coil, module radiator and electrically traditional type as, in the place ofonto an aluminium finned support connected with coil terminal and contacts and of capacitor, it has a which also operates as heat dissi- to ground, allows optimization of magnetic pulse generator(stator) pator. Between the electronic mod- primary voltage wave form on coil and, in the place of the cam, a ule and the support, it is interposed a and, consequently, toothed timer (rotor). higher perfor- grease coat with thermal highcon- mances. High voltage distribution to spark dutivity, with the purpose of ensur- plugs is obtained by means of a rotor r Gl. Fuseholder box A7. Timer (Rotor) Bl. To ignition switch A5. Electronic distributor Al 2. Spark plugs Nl. Electronic Module Cl. To elecrronic tachometer AS. Ignition coil A6. Magnetic pulse generator OS-27 May 1983

owners manual Alfa Romeo 33

owners manual Alfa Romeo 33 - year of production: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995 - Alfa Romeo 33 owners manual EN