Push button start

KPatterson · 05-07-2008, 08:07 PM

To make a long story short I wired up a push button start for simplicity to bypass the solenoid. I have blown two push buttons. One was a 60amp. Is there anything that I can wire up in line from the battery to the push button to tone down the amperage?

**bdmonist** · 05-07-2008, 08:53 PM

Try to wire the push button to a relay, not directly to the power source.

ReconRabbit · 05-07-2008, 09:00 PM

Just curious, why bypass the solenoid? Push buttons are usually used when bypassing the ignition switch.

high51977 · 05-07-2008, 09:03 PM

Quote:

Originally Posted by nzirbel

Just curious, why bypass the solenoid? Push buttons are usually used when bypassing the ignition switch.

exactly... if you want a button to bypass the solenoid you have to use a starter switch from an earlier model like an early 50's cj3 or cj5 the one in my 57 handled 12v power for the three years I owned it

**JeepHammer** · 05-07-2008, 09:05 PM

Now, not to put too fine a point on it,
BUT,
He just stated he wanted to 'Bypass the solenoid'...

The animal doesn't exist ON THE COMMON MARKET,
that will handle the current your starter is going to pull.

You will have to go to spring loaded switching,
(opposed to electrical switching, what a 'Relay' is...)
And that is going to be LARGE and EXPENSIVE!

You finger isn't fast enough to keep from burning up the contacts, and your starter is going to draw anywhere from 70 to 900 Amps, depending on weather, battery condition, cold or hot start, ect...

That's why there aren't any foot pedal operated solenoid/switches today...
Starers just draw too much amperage...

It's not a 'Push Button', but you might try a battery disconnect switch.
Some of them will have contacts large enough to handle the current your starter will demand in warm weather...

But you are still going to replace them on a regular basis since you are trying to break a 70 to 900 amp load with no 'Fast' switching...
You can't physically switch the contacts open fast enough to keep them from arcing and carbonizing...

That's were 'Relays' come in,
Super fast switching (compared to humans)...

KPatterson · 05-07-2008, 09:20 PM

well currently there is what appears to be a starter solenoid externaly in addition to the starter solenoid on the starter the wiring from the previous owner is not exactly the cleanest so I would like to run current directly to the starter than close the relay with some type of switch that can handle the current.

**bdmonist** · 05-07-2008, 09:41 PM

Missed the solenoid bypassing first go around - I assumed you were bypassing the ignition switch like most do when going to push button start. Why would you want to bypass the solenoid?

If you are trying to clean something up and there is a solenoid on the starter, ditch the one on the fenderwell and wire it up correctly???

KPatterson · 05-07-2008, 09:54 PM

I attempted to do that but apparently I had it wired wrong. Does anyone have a diagram?

**JeepHammer** · 05-08-2008, 10:32 AM

Quote:

Originally Posted by KPatterson

I attempted to do that but apparently I had it wired wrong. Does anyone have a diagram?

How about we clear up a bunch of things in your wiring at once...

**John Strenk** · 05-08-2008, 10:54 AM

Quote:

Originally Posted by KPatterson

well currently there is what appears to be a starter solenoid externaly in addition to the starter solenoid on the starter the wiring from the previous owner is not exactly the cleanest so I would like to run current directly to the starter than close the relay with some type of switch that can handle the current.

Are you sure there are Two starter solenoid.
Are we takling about an AMC engine or a Chevy.

I have seen dual series solenoids to give the GM starter a little more power to help it turn over when hot. This usually happens when the wiring is wrong and the voltage drops to low to keep the solenoid engaged when starting.

Don't try to bypass the solenoid and go directly to the starter. it just annoys the starter. You could start a fire if you're not careful. I use to have a starter solenoid that had a button to push that closed the contacts inside the solenoid manually. Havent seen one like that in years.

Here is something Simular:

Click on pic for link

**JeepHammer** · 05-08-2008, 01:19 PM

John, does that have a 'Snap' when you push the button?
Like spring loaded contacts inside, or is it just your finger making the contacts?

**John Strenk** · 05-08-2008, 01:52 PM

That was so long ago I don't remember...
And I don't know about that one, it's probably Lucas Electric anyway.

Everything else on that site was.

I bet you're thinking it should snap in and snap out to break the connection quickly.

It could of been wired up to be an internal switch between the start terminal and the Batt terminal which would just activate the solenoid. Don't know if it was a true manual override. seem to think it was though..

**JeepHammer** · 05-08-2008, 09:43 PM

If it's Lucas, it probably wasn't....

You know why Englishmen walk a lot and drink warm beer?
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Lucas made the electrical system for both the cars and refrigerators!

05-07-2008, 09:20 PM	#6
KPatterson Registered User Join Date: Apr 2008 Location: Duluth, Ga Posts: 10 Profile Gallery Classifieds My Jeeps	well currently there is what appears to be a starter solenoid externaly in addition to the starter solenoid on the starter the wiring from the previous owner is not exactly the cleanest so I would like to run current directly to the starter than close the relay with some type of switch that can handle the current.

05-07-2008, 09:54 PM	#8
KPatterson Registered User Join Date: Apr 2008 Location: Duluth, Ga Posts: 10 Profile Gallery Classifieds My Jeeps	I attempted to do that but apparently I had it wired wrong. Does anyone have a diagram?