TO30 Points/Condenser

[RyanY]

Tractor was running ok, but weaker than normal pulling a disc I've always used. Had a mechanic that I'd used before recommend replacing the points and condenser. Prior to removing the points, I measured the dwell (points gap) when it was on top of a hub. It was 0.017", so when I installed the new points, I set them to that again. Put the top contactor (not sure what this is properly called) on and then the distributor cap, and now it won't start. Thoughts or ideas on how to proceed? I'm pretty novice at this, so please kindly explain in detail. Thanks in advance

 

[Roadworthy]

Check that your new points aren't shorted to ground. I used to experience that from time to time when changing them. Rotate the engine to ensure they open and close while watching them. You can even use a test light on that side of the coil and watch it go off and on as you rotate the engine. It's only twelve volts on that part of the coil. Do you get a spark? Replacing the condenser is not a guarantee it's good. Its purpose is to help prevent the points from pitting - it slows the process. If it's internally shorted the points can't cause a spark.

 

[RayIN]

Check that your new points aren't shorted to ground. I used to experience that from time to time when changing them. Rotate the engine to ensure they open and close while watching them. You can even use a test light on that side of the coil and watch it go off and on as you rotate the engine. It's only twelve volts on that part of the coil. Do you get a spark? Replacing the condenser is not a guarantee it's good. Its purpose is to help prevent the points from pitting - it slows the process. If it's internally shorted the points can't cause a spark.

I've experienced that with new Chinese points too; the pivot post insulation is conductive. Trouble is, all points are made in China today, just different names.
That condition cannot be corrected, new replacement is the only option.
Ryan, it's name is rotor cap; those from China can also be defective, testing is required.

 

[Alan W.]

Robot or human?

My dads neighbor had good luck with this replacement. Higher initial cost but runs better.

 

[Mike1955]

Tractor was running ok, but weaker than normal pulling a disc I've always used. Had a mechanic that I'd used before recommend replacing the points and condenser. Prior to removing the points, I measured the dwell (points gap) when it was on top of a hub. It was 0.017", so when I installed the new points, I set them to that again. Put the top contactor (not sure what this is properly called) on and then the distributor cap, and now it won't start. Thoughts or ideas on how to proceed? I'm pretty novice at this, so please kindly explain in detail. Thanks in advance

Sir I think I would call the dealer and verify the setting of the contact points. And like