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Vac points and condenser

Y

young tractor

Member
Hi guys. This winter you guys got me straighten on converting
my vac case to 12 volt. It?s probably ran 3 hours and I either
burned out the points or condenser or both. I always put in a
new set every winter. So they were new 3 running hours ago. I
put in another new set just now and it runs fine. I Put a resistor
on the distributor side so it would shut off like you said. I don?t
have one on the coil side. I put a 12 volt coil on so I thought I
didn?t need one. Was it just the typical junk points and
condenser or do I need to put something on it to prevent
burning them out? I spray preemergent with it. So I?ll need to
figure it out soon. I really appreciate your thoughts
 
You put a resistor between the coil and distributor? Someone here advised you to do that? The resistor should be on the power side of the coil, unless it is built into the coil itself. But that should not cause the points to burn prematurely, might cause weak spark though. My guess is a bad condenser, happens a lot these days.
 
So are you saying I need a resistor on the wire that goes from the ignition switch to the coil? Put one on Just before it gets to the coil? I don?t have any resistor on there at all. The coil says ?12v use without external resistor. ?.
I have a resistor on the distributor side to keep it from back feeding when I shut it off. Do I even need one there? I have an Oliver 88 that was converted to 12 volt before I got it and that one seems to go through condensers also. Thanks again for your advice.
 
There should be no resistor on the distributor side of the coil. If your coil says use without external resistor then use it without external resistor. Again I suspect you just got a bad condenser, it did not suppress the arcing of the points as it should and thus burned the points out. Other things can cause the points to fry but that's the most common, especially these days, they literally don't make them like they used to.
 
I just had the same problem. New condenser and points and it ran like crap. Put the old condenser back in and good as new. If you get or have an old condenser that is good, I would hold on to it.

Lee
 
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