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Case 580D starter? long

A

Adrian Billheimer

Well-known Member
Since putting a new (Nippo)starter on a couple years ago I've had to hook up a battery charger to start the tractor, today I finally added an additional solenoid, running the original solenoid wire to the new solenoid start post, a 10 ga. wire from the hot post of the starter to one side of the solenoid and another 10 ga. wire from the other side of the solenoid back to the start post on the solenoid, hooked the battery back up and nothing happened like before, put the charger on it again, still nothing, put the wires back to original without the additional solenoid, it started with the charger on the battery as before, all added wires are new wire with connections crimped AND soldered,any thoughts, only thing I can think of, is the new solenoid is bad out of the box, which I will test on another vehicle this weekend.
 
Hello Adrian Billheimer,


You got me thinking! What is the second solenoid supposed to do? Does it it work like a switch, or does it carry the starter load? You got to give more info. Battery voltage is one,



Guido.
 
12 volt battery, the second solenoid is to send more voltage to the starter solenoid than what was originally sent, because the new Nippondenso starters that are sold today need more voltage than the original starters did.
 
MY first thoughts are.. Are you sure you had power to the second solenoid. Was it grounded or did it have a separate ground post. We run into this all time at the dealership and actually have a kit built up to solve the problem. You SECOND solenoid should be mounted close to the starter. Take the main feed from the end of the battery cable to the second solenoid. Move the wire coming from your starter switch to the feed (or make work) terminal. Then take a #10 as you say from the work terminal over to where you removed the starter wire. Do a little testing make sure you are actually telling the starter to crank. Like are you getting hot there at the starter control spade? I still suspect the ground of the second solenoid.
 
I think the ground should be good, I drilled and tapped two holes in the frame under the alt., (only place I had enough room), bolted a piece of stainless angle iron there with tapped holes to mount the solenoid, which its' mount is its' ground
 
From the wiring description, sounds like it's wired correctly.

Do you have an ohm meter? Try checking the continuity between the base and the excitation post to be sure it is a "base ground" type solenoid.

Might reconnect everything, test with a volt meter or test light, just to be sure.
 
Hello Adrian,

I don't know where to start to help you. Make sure the battery is fully charged, which means it should be @ 12.6V @ 80* F. and has the correct CCA ratings. You need to test the battery first. Then you need to take a volt meter start taking voltage readings. Bad connections will have a voltage drop. Start at the battery posts and cables. Make sure you have a good ground. While the engine is cranking battery voltage should not fall under 11V. What is more important is the voltage reaching the starter. Started lug voltage has to be at le ast 9.6V while cranking the engine. Any hot spots on the cables indicate A BAD connection. Again you can verify it with a volt meter. So take you voltage readings and you will find the problem. Neither two solenoid or ten will put the right power to the starter if it is not there to flow. I say power because it takes both volts and amps ( POWER ) to do the work required. So get your volt meter out and start. The only tool you need to find the problem. I may miss your reply so, either start a new thread or E- mail me.

Guido.
 
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