I have a 1970 Allis Chalmers 180 that has served me well. I am not well versed on the electrical system however and need some help.
Recently I went out to start the tractor on a cold day and it cranked over just fine but did not start. I continued to try and start it but after a couple more tries everything stopped. I am talking released the button waited 20 seconds and pushed the button nothing! Batteries were/are not dead.
Every time I push the starter button the voltage regulator (I think) makes a single click. If I turn on the key the voltage regulator sometimes makes a humming/vibration noise. I figured that was the problem so I ordered a rebuilt one online. Same results.
What do you all think is wrong with the tractor. Looking for a next step?