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blowing condenses

Make sure that the "hot" wire from the switch is going to the "+" side of the coil and the wire from the minus side of the coil is going to the distributor. Check also to make sure that there isn't a partial short (frayed insulation, etc)on the wire between the coil and the distributor. Another thing to look at is that the points plate has a good ground connection.
roger
 
Buy a better quality device? In all my time playing with engines (cars, tractors, motorcycles, stationary engines etc) I have only had single figure condenser problems.

I remember back in about 1969 I had to sleep in my car because the condenser failed. One leaky on a mag. Can't remember if the others were real problems or not.

I don't reckon they are as good quality these days. Probably 'cos they are of Chinese manufacture, or at least made down to a price rather than up to a quality.

Regards, RAB
 
That would be true if it was - ground but since he didn't say what it was hes working on your just taking a guess that is at best a 50/50 chance of being correct
 
About the only two things that will damage a capacitor are over-voltage, enough to arc through the dielectric, and excessive heat that will damage the dielectric material.
Cheap manufacture, may be, but paper capacitors have always been weak point in anything.
Best bet would something making temporary contact and when you change the cap. It is repaired temporarily.
 
Have you checked your charging voltage at the battery? If this is 12 volt system are you using a ballast resistor between the ignition switch and the coil? Hal
 
What makes you think those condensors are bad? Here's how to check them:

1. Set your multimeter to "ohms" autorange.

2. Hook the multimeter to the condensor. (Condensor is disconnected.) You will momentarily see continuity, then the resistance will rise to infinity.

3. Reverse the multimeter leads on the condensor. The multimeter will momentarily read negative resistance, then once again the resistance will rise to infinity.

About the only things that will blow a condensor are old age and overvoltage. If you happen to get the condensor connected to the secondary side of the coil, that can blow it.
 
Reminds me of the story of the mechanic who hollared across the shop at an office gal to check and see if the rear turn signals on a car he was working on were working okay.

"Yes, no, yes, no, yes no". :>)

Allan
 
Hello MarkB_MI.
Before you test a capacitor, it is a good practice to discharge it first.
They can hold power for a week! and that would not be good for any voltmeter!
Guido.
 
I'd check to make sure that you don't have 12 volts at the condensor. Some ignition coils have an internal resistor and some don't.
 
Condensers are rated at 200 volts an amount that is present when the points open.This is an inductive circuit.
 
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