Let's assume that the battery and the starter motor are normal, there is gasoline up to the carburetor, but the engine still does not run. In this case the fault is somewhere in the ignition circuit. Before starting to look for the location of the fault, it is useful to visually check whether the cables, connections and parts of the ignition circuit are broken. In the ignition circuit, it is best to start troubleshooting with the first circuit. Because malfunctions are usually in this phase.
First remove the distributor cover and put a piece of cardboard between the sinkers. After the ignition switch is turned on, it is checked whether the current is coming to the distributor input end with a control lamp (mobile lighting lamp of the vehicle) or voltmeter.
If no current is seen here, the fault is either on the ignition switch side or there is a short circuit in the capacitor. In order to understand this, the screw connecting the capacitor body is removed and the housing part is kept in the gap, while the current control is made again at the end. In this case, if current is coming to the distributor, the fault is in the capacitor, it is replaced with a new one. If there is no current, the capacitor is good. All connections towards the ignition switch are checked until current is found. The first cable and connection from the current location to the distributor side are defective, replaced or cleaned.
In some cases, the distributor will light when the lamp is touched to the current arrival end. In this case, the fault is in the distributor, especially the sinkers. The cardboard between the sinkers is removed, the motor is turned slightly to ensure that the sinkers are well closed. With the ignition on, the current control in the distributor is done again. If the lamp burns out, the sinkers are defective. It is replaced with a new one. When it is necessary, the motor can be turned into operation by inserting the sandpaper or the pharmacy side of the matchbox between the platinum and moving it or by scraping the platinum faces with the tip of a screwdriver. However, it would not be correct to make a platinum setting using a feeler gauge after the above cleaning. In this case, a temporary adjustment can be made by inserting it between the platinum, which may be 0.020 "(4 layers of newsprint). However, it is best to correct or change the platinum at the first opportunity.
If there is still no malfunction in the search made so far, it will be necessary to search the fault on the second circuit.
Platinum setting; regulates the cam angle (dwell time of the sinkers). A large angle causes the coil to heat up, while a small angle causes the coil to fail to deliver the required voltage.
Possible faults and remedies in the second ignition circuit:
1- Spark plug cable ends are dirty, cleaned.
2- The insulation of the cables is hardened or cracked, replaced with a new one.
3- Ignition coil is weak or not working, it is replaced.
4- There is wetness on the ignition coil, cables, distributor cover, spark plug porcelain or in the distributor, the wetness is wiped off and dried. < FONT face = Arial>
5- The spark plug types used are not suitable for the engine, look at the spark plug ruler.
6- The distributor cover is cracked or the carbon (coal) in the middle of the cover is burnt, the cover is replaced.
7- Insulators of spark plug cables are thin. Or the firing order is wrong, the cables are changed and arranged according to the firing order. Use the catalog for the firing sequence.
8- Spark plugs are damaged, dirty or wet. The porcelain is cracked, the nail gaps are broken, the cracked spark plugs are replaced, the dirt is cleaned, adjusted, the flashing control is done under pressure.
9- Distributor spool spring is bent or broken, spool is replaced.
10- The distributor reel is making a chassis, it is changed.
11- The tip in the middle tower of the distributor cap has no contact with the coal,
12- The interference holder inside the distributor cover is burnt or broken, it is removed or the cover is replaced with a new one. U >
If the fault is on the battery:
1- Battery is discharged, charged.
2- Pole links and clamps are dirty or loosened, cleaned and tightened. A small amount of petroleum jelly is applied on them to prevent sulphate formation.
3- Battery is grounded incorrectly, correct end is connected to the chassis. When the cables connected to the pole head of the battery are kept close to each other in a glass of salt water, the tip that creates bubbles is the (-) end.
4- Battery cables are thinner than necessary or worn, replaced with new ones.
If the failure is in Starter:
1- Starter motor does not turn the engine fast enough, look at the starter search for fault section.
2- Too thick oil is used in the engine or the oil is thickened, the engine oil should be changed with suitable oil. FONT >
3- Starter pinion gear hits flywheel gears, flywheel gear or pinion gear forward mechanism is broken. It is repaired. In this case, the tool can be operated by pushing it.
4- Starter switch is broken, it is repaired or replaced.
5- In vehicles with automatic transmission, the starter safety device is defective. Repair and adjustment.
Hit : 6969