Toyota 3B starter question (1 Viewer)

Joined
May 19, 2017
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90
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Missoula Montana
I have a 3B that I have swapped into a project. I am in the process of installing a new wiring harness from bumper to bumper (painless harness). I got the wiring harness with the engine (BJ60) which is where my confusion comes from. The starter motor pretty clearly has a solenoid on it. The wiring harness also has a starter solenoid. Completely confused by this. I will say the wiring from the starter solenoid to the starter solenoid on the starter is probably 10 gauge so its heavy. The reason I ask is that the wiring for the painless harness will handle 15 amps but the extra solenoid makes me think the solenoid on the starter must need some real amperage to work. Does anyone know. Trying to avoid putting the "factory smoke" back in the box when I turn the key the first time!
 
Joined
Mar 31, 2016
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132
Location
Los Angeles
The wire on my starter is very thick. mine is a bj42 24 volt and looks like this.
20210106_213609.jpg
 
Joined
Sep 12, 2020
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45
Location
Victoria BC Canada
I have a 3B that I have swapped into a project. I am in the process of installing a new wiring harness from bumper to bumper (painless harness). I got the wiring harness with the engine (BJ60) which is where my confusion comes from. The starter motor pretty clearly has a solenoid on it. The wiring harness also has a starter solenoid. Completely confused by this. I will say the wiring from the starter solenoid to the starter solenoid on the starter is probably 10 gauge so its heavy. The reason I ask is that the wiring for the painless harness will handle 15 amps but the extra solenoid makes me think the solenoid on the starter must need some real amperage to work. Does anyone know. Trying to avoid putting the "factory smoke" back in the box when I turn the key the first time!
The 3B starter wiring is really heavy duty because the solenoid can draw up to 30 amps so it should be at least 12awg.
 
Joined
May 19, 2017
Messages
90
Location
Missoula Montana
The 3B starter wiring is really heavy duty because the solenoid can draw up to 30 amps so it should be at least 12awg.
Thanks everyone for the replies. 30 amps is surprising but it makes sense. I will go ahead and add a solenoid to my solenoid equipped starter to handle the load since the wire supplied by painless is limited to 15 amps. Thanks again!
 

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