Ignition coil

Check of the coil of ignition is carried out in the following order:

Fig. 6.17. Check of resistance of a secondary winding of the coil of ignition: 1 – ignition coil; 2 – the plug of ignition 1 (–); 3 – plug 4 (HT); 4 – plug 15 (+)

– disconnect electric wires and uncover the ignition coil (see fig. 6.17 );

– connect a tester between plugs 1 (–) and 15 (+) and check resistance of primary winding of the coil of ignition;

– connect a tester between plugs 4 (HT) and 15 (+) and check resistance of a secondary winding of the coil of ignition.

Control unit

Carry out check of the TC1-H control unit in the following order:

– remove a waterproof protective cover from the control unit;

– squeeze the fixing uvulas and disconnect the electric socket from the control unit;

– connect a tester to contacts 2 and 4 on the control unit socket;

– include ignition, at the same time the voltmeter has to show accumulator tension. Otherwise check electric wires;

– switch off ignition, disconnect a tester and repeatedly connect the socket;

Fig. 6.12. Distributor of ignition of the TC1-H system: 1 – distributor rotor; 2 – dustproof cap; 3 – lock ring; 4 – pin; 5 – the steel screen with cuts; 6 – spring washer; 7 – washer; 8 – spring bracket; 9 – electric socket; 10 – screw; 11 – nest of the electric socket; 12 – Hall's sensor; 13 – washer; 14 – support plate; 15 – distributor case; 16 – vacuum regulator of an advancing of ignition; 17 – bolt; 18 – holder; 19 – sealing ring

– squeeze the fixing uvulas and disconnect the electric socket 9 (see fig. 6.12 ) from the ignition distributor;

– connect a tester to contacts 1 (–) and 15 (+) on the ignition coil (see fig. 6.17 );

– include ignition, at the same time at the first moment tension will make 2 V, and through 1–2 with will decrease to zero. Otherwise replace the control unit;

– connect the central contact of a wire of the distributor to "weight", at the same time at the first moment tension will make 2 Century. Otherwise check the central wire or replace the control unit;

switch off ignition;

connect a tester between external contacts of a wire of the distributor;

include ignition, the tester has to show 5 V;

disconnect a tester and connect the electric socket to the distributor.

Hall's sensor

Carry out check of the sensor of Hall in the following order:

– disconnect high-voltage wires from a cover of the distributor and connect it to weight;

– remove a waterproof protective cover from the control unit;

Fig. 6.22. Check of the sensor of Hall

– connect a tester to contacts 6 and 3 on the control unit socket, leaving the socket connected to the block (fig. 6.22) ;

– include ignition;

– a wrench for a bolt of fastening of a pulley, slowly turn a bent shaft of the engine clockwise, controlling indications of a tester. Tension has to change in steps between zero and 2 Century. Otherwise replace Hall's sensor.