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Expert 5K+
Posts: 8947
Location: WHEELING,WV.>>>HOME OF WWVA | with the key in on position or motor running on position , how warm/hot should the firewall ballast resistor be -----------------------------------------------later |
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Board Moderator & Exner Expert 10K+
Posts: 13054
Location: Southern Sweden - Sturkö island | My car is in the garage on floorstands for the winter service Chuck, so I can't give you a value right now.
You'll burn your fingers on the porcelain though…... |
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Expert 5K+
Posts: 7409
Location: northern germany | I think mine gets pretty hot. |
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Expert 5K+
Posts: 8947
Location: WHEELING,WV.>>>HOME OF WWVA | thank you gentlemen , i haven't had an occasion to even think about a ballast resistor getting warm since @1967 when i changed the only one
i've ever had go bad on a 57 chevrolet when i was 17 ,,,,,,, a life time ago-------------------------------------------------later |
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Extreme Veteran
Posts: 397
Location: Milano, Italy | Pardon me guys... you might be laughing but I yanked this part 40 years ago when I started the engine of my Belvie (it was stuck after 15 years ina field)... and I am still wondering what was it for..... |
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Extreme Veteran
Posts: 397
Location: Milano, Italy | because I run my car without it and I never had a problem ever since.... |
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Board Moderator & Exner Expert 10K+
Posts: 13054
Location: Southern Sweden - Sturkö island | Theoretically, an ignition coil is constructed for a working tension of 7-9 volts, hence the ballast resistor, which is bypassed during the cranking of the starter for to ensure that the voltage drop doesn't affect the ignition sparks.
The risks to run a coil intended for ballast resitor without it is overheated coil and shorter life time of the breaker points.
There are of coarse ignition coils constructed for a working tension of 12 volts continiously, so maybe you have on of those?
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Extreme Veteran
Posts: 397
Location: Milano, Italy | thank you Wizard,
Yes.... indeed I have changed the coil several times and I always bought off the counter modern ignition coils (until they used the barrel tipe on any engine).
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