International Lancia Forums

The Marelli BES200A ignition coil have a satellite condenser. Can anybody tell me the correct value of it?
My car have a 0,25 picofarad one. Can we discard this part?; the car runs well without it.

Carlos

Are you sure that it is 0.25pf? This is a very small value and offhand I cannot think of a reason for such a tiny capacitor to be fitted to the car.

I have seen 0.1uF (microfarad) capacitors fitted here and there, these are usually to protect the diodes in the alternator from eddy current surges caused by relays. These can reach c. 500V momentarily; many people have experienced quite a sharp shock when playing with relays and this voltage can blow diodes in alternators, the diodes being suitable for high current low voltage service. Very often Bosch alternators were fitted with a flat plastic capacitor that looked rather like a small piece of chocolate, no doubt to protect the device.

Paul

Thank you Paul.

I checked again, and the correct value is 0,25 uF. The Alternator (Bosch) is fitted with that plastic capacitor.

Carlos