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elctric question [message #252456]

Wed, 18 June 2014 08:27

appie

Messages: 902
Registered: April 2013
Location: denmark

Karma: 2

Senior Member

Olga has a sepperate start button, thats fine
I turn on the ignition, the ignition light turns on and I push the button, If I turn the switch to the start position the ignition light get bright ( like when you run the starter, only it doesn't) I find that strange.
After the motorswap I had the ignition on, running the fuelpump; when the ignition light went out. Everything else still works, it even goes bright when I move the switch to start ??
So it is not the bulb, or is it ?

Appie eleganza 76 "Olga" now sadly sold 6 wheel discbrake Quadrabags Springfield stage 2 462 olds Manny tranny ( pictures at http://www.gmcmhphotos.com/photos/g6489-olga.html Fulltiming in Europe july 2014 til july 2016 Denmark

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Re: elctric question [message #252459 is a reply to message #252456]

Wed, 18 June 2014 09:33

Otterwan

Messages: 946
Registered: July 2013
Location: Lynnwood (north of Seattl...

Karma: 0

Senior Member

Wow, my 1953 GMC Pickup had that same system. I assume the PO did that? Any idea why?

1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."

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Re: [GMCnet] elctric question [message #252460 is a reply to message #252459]

Wed, 18 June 2014 09:50

bdub

Messages: 1578
Registered: February 2004
Location: Central Texas

Karma: 5

Senior Member

Simple. The infamous GM Hot Start problem. It's easier than shorting
across the starter connections when it strikes. Or buying and wiring in a
Ford solenoid.

A new starter solenoid and heat shield would be proper.

bdub
On Jun 18, 2014 9:34 AM, "David Orders" wrote:

> Wow, my 1953 GMC Pickup had that same system. I assume the PO did that?
> Any idea why?
> --
> 1976 Royale "Twinkie II", 1978 Palm Beach with front end fire. Lynnwood WA
> - "We may not be able to stop all evil in the world, but I know that how we
> treat one another is entirely up to us."
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Re: [GMCnet] elctric question [message #252470 is a reply to message #252460]

Wed, 18 June 2014 10:39

glenn2726

Messages: 234
Registered: June 2014
Location: Topeka, Kansas

Karma: 2

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So I'm assuming the pushbutton switch is bypassing the starting circuit at the keyed switch and goes directly to the starter since when he turns the key to start there is nothing, only when the button is pushed does he get the start action. So does the light go out because the starter is bad and shorts that circuit? Not letting it complete the circuit and the light only shows there is a completed circuit for starting? If so I'm in agreement, check that the solenoid is getting power. I think the answer is in there somewhere...lol

Glenn W Topeka, KS 1974 GMC 26 ft. Color:Camel Interior:Canyon Land Side Bath, Rear Sitting Area

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Re: elctric question [message #252472 is a reply to message #252456]

Wed, 18 June 2014 10:56

roy1

Messages: 2126
Registered: July 2004
Location: Minden nevada

Karma: 6

Senior Member

Sounds like there is a problem with the ignition switch ,neutral safety switch or their wiring, someone didn't want to figure it out so they wired from a power circuit directly to the starter solenoid.

Roy Keen Minden,NV 76 X Glenbrook

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Re: elctric question [message #252487 is a reply to message #252472]

Wed, 18 June 2014 12:16

appie

Messages: 902
Registered: April 2013
Location: denmark

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that's what I think Roy

But why does the ignition llight gets bright when turning to start ? and why does the ignition light not light anymore at igniton ?

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Re: elctric question [message #252572 is a reply to message #252487]

Wed, 18 June 2014 21:24

roy1

Messages: 2126
Registered: July 2004
Location: Minden nevada

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appie wrote on Wed, 18 June 2014 10:16

that's what I think Roy

But why does the ignition llight gets bright when turning to start ? and why does the ignition light not light anymore at igniton ?

As far as I know I don't have an ignition light unless it goes by another name? Is it possible your light circuit has a bad ground ? That could explain its erratic functioning ? The only ignition light I can think of is on my Onan

Roy Keen Minden,NV 76 X Glenbrook

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Re: elctric question [message #252604 is a reply to message #252572]

Thu, 19 June 2014 01:19

appie

Messages: 902
Registered: April 2013
Location: denmark

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english, not being my native language, sometimes I use the wrong name for a object When I say ignition light, I mean the pilot light that lights up when the key is on ignition and turns of with engine running ( if the generator is charging)

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Re: [GMCnet] elctric question [message #252607 is a reply to message #252604]

Thu, 19 June 2014 06:27

Ken Henderson

Messages: 8726
Registered: March 2004
Location: Americus, GA

Karma: 9

Senior Member

Appie,

That's the alternator warning light (often called "ALT"). It operates by
comparing the battery voltage as supplied through the ignition switch with
the output of the alternator. If the alternator's not producing voltage,
the light illuminates. Perhaps that description will help you understand
what's going on.

Ken H.

On Thu, Jun 19, 2014 at 2:19 AM, lenze middelberg
wrote:

> english, not being my native language, sometimes I use the wrong name for
> a object When I say ignition light, I mean the pilot light that lights
> up when the key is on ignition and turns of with engine running ( if the
> generator is charging)
>
>
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76 X-Birchaven
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Re: elctric question [message #252609 is a reply to message #252456]

Thu, 19 June 2014 07:04

appie

Messages: 902
Registered: April 2013
Location: denmark

Karma: 2

Senior Member

Thanks Ken, for the right name for this light I know it's function. Just do not know why it acts like this
When I turn the key to ignition it should light becourse the ignition and the fuelpump are using power but the generator does not produce It does not do that anymore ?
If I turn the key to start i light up brigtly, showing there is a current running Might be a short the made the PO install the start button

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Re: elctric question [message #252635 is a reply to message #252609]

Thu, 19 June 2014 12:05

roy1

Messages: 2126
Registered: July 2004
Location: Minden nevada

Karma: 6

Senior Member

appie wrote on Thu, 19 June 2014 05:04

Thanks Ken, for the right name for this light I know it's function. Just do not know why it acts like this
When I turn the key to ignition it should light becourse the ignition and the fuelpump are using power but the generator does not produce It does not do that anymore ?
If I turn the key to start i light up brigtly, showing there is a current running Might be a short the made the PO install the start button

I would say Ken explained it correctly. It is working correctly as it turns off when the engine is running and lights when the key is on and the engine is not running there is no short you are good to go. On the other hand it should be lit if the switch is is in the on position engine not running it would be off in Acc.Gene will likely remind you to be sure you have his protector thing in the alternator wiring. Be advised if you can start the coach in drive or reverse with your bypass button it is not a safe condition as it could lurch forward when you start it.

Roy Keen Minden,NV 76 X Glenbrook

[Updated on: Thu, 19 June 2014 12:12]

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Re: elctric question [message #252924 is a reply to message #252456]

Sun, 22 June 2014 11:28

Bob de Kruyff

Messages: 4260
Registered: January 2004
Location: Chandler, AZ

Karma: 1

Senior Member

appie wrote on Wed, 18 June 2014 07:27

Olga has a sepperate start button, thats fine
I turn on the ignition, the ignition light turns on and I push the button, If I turn the switch to the start position the ignition light get bright ( like when you run the starter, only it doesn't) I find that strange.
After the motorswap I had the ignition on, running the fuelpump; when the ignition light went out. Everything else still works, it even goes bright when I move the switch to start ??
So it is not the bulb, or is it ?

Well at least you won't be getting an ignition switch recall notice Smile

Bob de Kruyff
78 Eleganza
Chandler, AZ

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