Posted by Commoner#5 on February 15, 2015 at 07:38:28 from (108.49.89.244):
I recently purchased a 1957 International Harvester Model 350 Utility. I have not been able to start for a couple of weeks now. Today we installed new solenoid from NAPA. While it was out of the tractor I decided to replace all wires and terminals in this circuit, just in case. I matched the wires that were on the tractor. 10 gauge from the solenoid to the toggle and 14 gauge the rest of the way. While we were at it, we decided to replace the toggle switch as well. The only old equipment is the push button starter. All connections clean and new and tight. No start. Put the 12 volt test light on the negative side of the battery terminal and began the testing once again. The tractor is a negative ground. Power at the positive side of the battery, power at the large bolt on the solenoid, power at the toggle switch, power at the push button starter. With the toggle on, power at the outgoing toggle connection, power at the push button, and power at the small bolt on the solenoid when the push button is pushed. All good, right? Unfortunately also power at the frame. Put the multi-meter on all of the above connections for power, which we had 12.55 volts, same as the battery. When testing the frame, also at the 12.55 volts? Where is the cross over from negative to positive? Removed the coil wire from the toggle switch to see if that might be the issue, tested the same as connected, so I assume that is not the problem? I did also jump the starter, which turned over. The frame is only hot when the push button is pushed, toggle on or off. If the push button is not pushed, no power to frame? Push the push button starter button and it lights the frame up? I also am questioning the key starter circuit? This has a heavy wire coming from the negative side of the battery bolted to this key switch area. Another bolt hitches a heavy wire that connects directly to the frame. That is all on the negative circuit. Sorry about all the details, but I am confused for sure. I wonder how there is a cross between the negative and positive side of the battery? Could the starter be bad and somehow shorting to the frame? Thanks for your thoughts.
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