Push button starter - how big of a fuse? - Diesel Forum - TheDieselStop.com
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post #1 of 7 (permalink) Old 05-16-2009, 10:42 AM Thread Starter
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Push button starter - how big of a fuse?

I want to run a push button to my fender-mounted starter relay.

I will put one wire on the little ignition switch terminal on the relay and one wire on the starter terminal on the relay and run them both back to a heavy duty 60 amp push button.

Is this right?

I am wondering how big of an inline fuse / fusible link i should use and where i should put it on the circuit.


thanks.


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post #2 of 7 (permalink) Old 05-16-2009, 11:27 AM
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The only thing you will be energizing, is the relay itself. Personally, if I were doing this wiring job, I would use a 10A switch and 10A inline fuse.

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post #3 of 7 (permalink) Old 05-16-2009, 11:41 AM Thread Starter
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The only thing you will be energizing, is the relay itself. Personally, if I were doing this wiring job, I would use a 10A switch and 10A inline fuse.
Oh OK. That was partly why I was asking... i am just learning.

So I would've needed the big switch and BIG fuse if i was jumping the relay (hot terminal to starter terminal), right?

but since i am just doing the same thing the ignition switch does, and using the relay rather than jumping it, I only need the 10A switch and 10A fuse?

i think i get it now.


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post #4 of 7 (permalink) Old 05-16-2009, 11:49 AM
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Originally Posted by dieseldirt View Post
since i am just doing the same thing the ignition switch does, and using the relay rather than jumping it, I only need the 10A switch and 10A fuse?

i think i get it now.

Yeah... It doesn't take much juice, to power a relay..

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post #5 of 7 (permalink) Old 05-16-2009, 04:16 PM
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u no those ricers you eat for breakfast? well lots of um got what you want it will even light up when you push it and it says "engine start" on it
pretty sweet i think

or id go with an old semi style one

but its got to be labeled if you disconnect the ignition switch part of it remember that (inspection law in some states)

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post #6 of 7 (permalink) Old 05-17-2009, 08:05 PM Thread Starter
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or id go with an old semi style one

but its got to be labeled if you disconnect the ignition switch part of it remember that (inspection law in some states)
yeah i am probably just going to put in a push button like on an older semi.

i know what you mean though those toggle switches with the little flip up cover on em....for that race car/fighter jet look.


..what i really want to do is replace my throttle pedal with one of those big ones out of a semi. how much of a pain do you think that will be?


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post #7 of 7 (permalink) Old 05-17-2009, 08:48 PM
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On any wiring, never put a bigger fuse than the weakest component can handle. example: 60amp switch on 16 gauge wire with a 60 amp fuse, wire will probably melt before it pops a fuse. If in doubt on a fuse, bigger is NOT always better. And always put the fuse as close to source of power as possible. Popping a fuse is way better than burning a vehicle down.
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