Voltage drop

Doing some trouble shooting and found I have .53 voltage drop across the solenoid of a starter. Is this ok or could it cause a problem in cold weather.
 
If that is testing under load, I would say that is acceptable.

If it's showing voltage drop without a load, well it probably won't work at all.
 
I read some of your other posts on your problem. Have you pulled the starter out yet? Years ago I saw a few of them the problem there was so much gooie grease in the bell housing the drive would not kick in properly. Washed the drive and problem was solve. You need 10.5 volts at the starter when you try to start the tractor.
 
I have not pulled the starter yet. Since their not talking any snow for a time will do that this week or weekend.
 
A half volt drop on a 6v system has more of an effect than on a 12v. Measure the voltage drop across battery, cranking voltage. I bet it way more than 1/2 volt, more like 1 or 2v if not more.

You may find it easier to use an old analog meter to measure battery cranking voltage. Digital will be all over the place.

My cars in the 60's used about an 8v coil, not exactly sure of exact voltage. Like when we convert over to 12 volts, many of use use a ballast resistor. Well back then the ballast was removed during starting, so the full battery voltage was applied to the 8v coil. However the full battery voltage during cranking was much less than 12v. Depending on battery condition I think you were looking at around 10v give or take.

So voltage drops produced during cranking is normal. Your real concern is to look for hot spots, heat related color changes in cables, melted insulation, or solenoid. That is the real sign you have a problem.
 

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