- Thread starter MTC
- Start date
Eagle Beagle
Member
Have you thought about trying the electronic conversion that Pertronix sells. I've converted two of my Case's over and like how they run. They let me get by with some distributer shaft bushing wear. You'll need the number off the tag on your dist.
Beagle
I think they sell them here.
Beagle
I think they sell them here.
oldproudvet
Well-known Member
It sounds to me like your ballast resister has been bypassed, or an ignition coil with an internal resister has been changed. Breaker points can not live with 12 volts.
A resister is in line, in the primary circuit cutting voltage down, depending on engine rpm. 6 volt vehicles did not need this, except for flathead Fords from 32 to 48. But their coils were wound for the resister. Measure the primary voltage going into the distributor or to the breaker points. It should be in the 7-9 volt range depending on the system. Just not battery voltage.
A resister is in line, in the primary circuit cutting voltage down, depending on engine rpm. 6 volt vehicles did not need this, except for flathead Fords from 32 to 48. But their coils were wound for the resister. Measure the primary voltage going into the distributor or to the breaker points. It should be in the 7-9 volt range depending on the system. Just not battery voltage.
desert eagle
Member
Sounds like the wrong coil. You need a internally resisted coil.
Eagle Beagle
Member
Be sure that the points are clean and making good contact and in the closed position when measuring the voltage from the coil. Otherwise it will show battery voltage, whether or not you have an in-line ballast resistor or a coil with an internal resistor.
John Saeli
Well-known Member
The suggestion for the coils is good, but also important is battery polarity. Points are made to accept and discharge current in one direction. If it doesn't turn out to be the coil, try reversing the battery polarity, ie. from neg. ground to pos. ground.
Had a problem with my 1835 after the dealer tuned it up. The condenser would fail. He put in 2 more condensers before I got tired of it and got a condenser from Car Quest or NAPA. It's been in 2 years and the loader starts fine even in cold weather. The dealer's service manager had no explanation why Case condensers were faulty. Something to consider.
Sorry, But I have to call BS on you on that.
Points will work with current in both directions.
In some cases there are minute differences in the coatings on some points, and yes, those work BEST in an as designed polarity, but they most certaintly work both ways.
Ever noticed the points on a well pump? that's AC current.. meaning it goes both ways!
Points will work with current in both directions.
In some cases there are minute differences in the coatings on some points, and yes, those work BEST in an as designed polarity, but they most certaintly work both ways.
Ever noticed the points on a well pump? that's AC current.. meaning it goes both ways!
Have to call BS on that one too.
I challange you to find a modern made internal resistor coil for that application.
You will instead find what are essentially 6v coils designed for 12v with use of an external series resistor, or a 12v native application coil built with the correct primary winding input impedance.
I challange you to find a modern made internal resistor coil for that application.
You will instead find what are essentially 6v coils designed for 12v with use of an external series resistor, or a 12v native application coil built with the correct primary winding input impedance.
John Saeli
Well-known Member
Hey Soundguy: We're not talking AC Electric points. Yes, ignition points will work in both directions, same for voltage regulator points, but they will last longer when used for the polarity direction in which they were designed, IF the terminal contacts are not the same material for both contacts.
John Saeli
Well-known Member
You may be wearing boots, but you stepped into it at least once!!
Klyde
Member
- Location
- Upstate NY
Gee John, all these years when I switched a tractor from pos to neg ground I NEVER EVER had to change the points to match the polarity! Coil polarity yes. AND when I switched them to 12 volt neg ground from 6 volt pos ground The coil got changed to a 12 volt coil. (I'm a MOPAR man and I never liked those ballast resistors) When you can show me a different part number for pos and neg ground points I'll believe you.
John Saeli
Well-known Member
Klyde!! Klyde!! Klyde!!! Et Tu?? Listen up!! When you go to your favorite Auto Parts store, you order points for your favorite vehicle. The manufacturer has already done the footwork, to know what the polarity of that vehicle should be. Eeergo....the points are made that way. Haven't I also heard you say you have had no problems w/ Champion plugs??????
Klyde
Member
- Location
- Upstate NY
I AM THAT PARTS MAN!!! Been doin it for 40 plus years check the charts. How is it that we use the SAME points in Racine built neg ground and Rock Island pos ground? Hmmm
John Saeli
Well-known Member
Klyde...Simmer down...After 40 years of dishing it out over the parts counter, you seem a little Testy. I can see you now..."Get Out!! No Parts For You!!" That chart is so old, the numbers don't even come up. Current CASE price on a set of Prestolite Contacts is about $24.00. Compare that to a Tisco Kit of Contacts, Condenser & Rotor for $13.98. CASE may very well spec their Contacts to have the same material on both sides of the Contact, but aftermarket Contacts do not. I assume you will find it very difficult to find anyone here on the Board here buying Genuine CASE Contacts.
WTF?? I'm not dreaming this up, this polarity issue has been explained to me by Manufacturers Rep's. Makes sense, for instance, some Voltage Regulators are Polarity specific, yet they will work with either polarity, except, when wired up the other way, they will not last, the contacts burn up.
Think serenity now, think soothing thoughts. For a small fee, I'd be glad to counsel you through these anger issues you seem to exhibit.
WTF?? I'm not dreaming this up, this polarity issue has been explained to me by Manufacturers Rep's. Makes sense, for instance, some Voltage Regulators are Polarity specific, yet they will work with either polarity, except, when wired up the other way, they will not last, the contacts burn up.
Think serenity now, think soothing thoughts. For a small fee, I'd be glad to counsel you through these anger issues you seem to exhibit.
Adirondack case guy
Well-known Member
This thread is becoming pointless. HeHe
Loren
Loren
I have a D17 Allis that became a point eater.
I installed a resistor between the coil and the points.
It?s been a long time since I bought the resistor but I think it is similar to the one used for the 930 Case CK gas. Or its one used for the Chrysler 1973 pkup truck.
Either one should work.
We used to have an old mechanic locally that routinely added resistors to old tractors to keep from burning points. All I know it works most of the time.
(Knock on wood) I haven?t had a serious problem for years. I do use NAPA points which are a little better in my opinion than some
I installed a resistor between the coil and the points.
It?s been a long time since I bought the resistor but I think it is similar to the one used for the 930 Case CK gas. Or its one used for the Chrysler 1973 pkup truck.
Either one should work.
We used to have an old mechanic locally that routinely added resistors to old tractors to keep from burning points. All I know it works most of the time.
(Knock on wood) I haven?t had a serious problem for years. I do use NAPA points which are a little better in my opinion than some
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