by passing starter solenoid

[neighborbill]

I probably didn't make it clear.
I will be paralleling the 12 volts from the now connected solenoid so that the plunger will operate, to the actuator coils on the aux relay to the key 12 ignition pin.
Therefore the solenoid will activate on both original and aux at the same time. This will by pass contacts in the existing solenoid and instead placing a current path from the battery threw aux contacts to starter motor. Effectively by passing the solenoid contacts on that starter motor now.

You indicated there is a solenoid on the starter. As you were already told, the solenoid shifts the drive into the flywheel, thus you cannot eliminate the solenoid. Take the advice of someone who has rebuilt thousands of starters. if it is a Denso starter, the contacts may solve it. If you replace the solenoid on another design/OEM starter it may resolve it.

 

[neighborbill]

Did you test the starter after pulling it?

I haven't pulled the starter yet.
I live in Wisconsin and this means no more work until Spring.
Starter works fine.
Solenoid kicks in and out
No current to the starter motor after 12 volts applied to solenoid.

 

[whocares]

Had a similar issue with BX22, starter would not kick in reliabily. Had unit rebuilt and still had the same problem. I check the voltage at the starter bendix and found I was only getting 8 volts to it which was not enough to kick in the solenoid reliably. The voltage drop was from all the safety switches. The power from the start key would go to the seat safety switch, and then to the PTO engage safety, and then to the starter. Over time the resistance increase in them and cause a voltage drop. So what I did is put in another relay which would send power from the battery directly to the bendix. The 8 volts from the starter key was sufficient to trigger the new relay. So all my safetys still work and the starter fired everytime after that.

 

[neighborbill]

Had a similar issue with BX22, starter would not kick in reliabily. Had unit rebuilt and still had the same problem. I check the voltage at the starter bendix and found I was only getting 8 volts to it which was not enough to kick in the solenoid reliably. The voltage drop was from all the safety switches. The power from the start key would go to the seat safety switch, and then to the PTO engage safety, and then to the starter. Over time the resistance increase in them and cause a voltage drop. So what I did is put in another relay which would send power from the battery directly to the bendix. The 8 volts from the starter key was sufficient to trigger the new relay. So all my safetys still work and the starter fired everytime after that.

This is pretty much what I am going to do. I don't have the 4 volt drop like you have though. I connected 12 volt from the battery to the solenoid through a starter hand held switch. Solenoid kicked in but no starter motor turning. contacts are not letting current flow through