WICO C magneto help please

I bought a really nice John Deere H that hadn't ran since parked inside 20 years ago. It had no spark, so I checked and cleaned the points. Still no spark. I removed the coil and attempted to test the primary and secondary resistance. My information tells me the primary should measure 4.6 ohms and secondary should test 5000 ohms. Here's were my confusion starts. When I check from the spark poll to the ground lead of the primary I amazingly enough get 4.6 ohms. When I check from the spark poll to the secondary wire that connects to the points, I get the same 4.6 ohms???? Additional, when I check across the both primary lead and secondary lead I get a direct short or continuity. Should I get a connection across the two leads? Why am I getting the same 4.6 across the secondary?
 
I don't know why you are making this political, but ennywho, primary Ohms reading is taken between the coil ground lead and the coil primary/point lead.

Secondary Ohms reading is taken between the primary lead and the high-tension terminal.
 
Had me going for a minute with that first line comment on my poll vs pole. Per your instruction, my primary checks .6 ohms verse .46 and the secondary checks 4500 ohms verse 5000 ohms. I would assume that it is still ok then? I do not believe it to be the condenser, because I have no spark, not weak spark or arcing at the points while running
 
(quoted from post at 18:04:44 04/10/19) Had me going for a minute with that first line comment on my poll vs pole. Per your instruction, my primary checks .6 ohms verse .46 and the secondary checks 4500 ohms verse 5000 ohms. I would assume that it is still ok then? I do not believe it to be the condenser, because I have no spark, not weak spark or arcing at the points while running


Maybe the spring is broken inside...do you hear the magneto snap?
 
(quoted from post at 18:04:44 04/10/19) Had me going for a minute with that first line comment on my poll vs pole. Per your instruction, my primary checks .6 ohms verse .46 and the secondary checks 4500 ohms verse 5000 ohms. I would assume that it is still ok then? I do not believe it to be the condenser, because I have no spark, not weak spark or arcing at the points while running


Maybe the spring is broken inside...do you hear the magneto snap?
 
(quoted from post at 18:04:44 04/10/19) Had me going for a minute with that first line comment on my poll vs pole. Per your instruction, my primary checks .6 ohms verse .46 and the secondary checks 4500 ohms verse 5000 ohms. I would assume that it is still ok then? I do not believe it to be the condenser, because I have no spark, not weak spark or arcing at the points while running


Maybe the spring is broken inside...do you hear the magneto snap?
 
(quoted from post at 20:04:44 04/10/19) Had me going for a minute with that first line comment on my poll vs pole. Per your instruction, my primary checks .6 ohms verse .46 and the secondary checks 4500 ohms verse 5000 ohms. I would assume that it is still ok then? I do not believe it to be the condenser, because I have no spark, not weak spark or arcing at the points while running

The coil may or may not be "bad", resistance tests are not conclusive as to whether it will make spark, or not.

One shorted "turn" or a few shorted turns will not change the resistance much, but will bleed off energy, making for a weak spark, or no spark, but not change the Ohms value much.

Substituting a known-good coil or testing the coil with a coil tester that :rings: it are the only ways to be sure.

NOT sure what you mean by " I do not believe it to be the condenser, because I have no spark, not weak spark or arcing at the points while running", I thought this thing didn't spark, so the engine can't run???

I'm guessing you are cranking it and seeing no spark at the points? A shorted or leaky condenser could cause that, as well as dirty, burnt, or oxidized breaker points.

And, as the other guy asked, is the "impulse" working at cranking speed?
 
My reference to I don't believe it to be condenser, may be incorrect, but my normal belief is that the condenser does 2 things. 1) increases the intensity of the spark by unloading stored energy. 2) stores energy to keep the points from arcing while running. I have not seen the tractor running but was basing the condensers condition based on that theory. I have the mag completely disassembled and the bearings and impulse spring are in good condition. The armature has magnetism, at least things will stick to it( I don't know how strong is normal) and I have cleaned the points with 1000 grit sandpaper. I need to place an order for a few parts, including points and condenser but was trying to determine if I should spend the 80 bucks for a new coil too. It sounds like I might as well just buy a new coil so there is not questions. Thanks for you guys help so far. Rick
 

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